Altair Activate®

Multi-Disciplinary System Simulation

Altair Model-Based Development Customer Stories from 2019 Global ATC

These success stories illustrate how customers are leveraging Altair's Math & Systems technology for Model-Based Development to develop better products, faster. Simulations involve 3D, 1D, and/or 0D modeling approaches based on the integrated use of Altair MotionSolve™, Altair Activate™, and/or Altair Compose™.

Presentations, Videos

Altair Activate Key Capabilities

Playlist highlighting the key capabilities of Altair Activate

Videos

Model Based Development of Mechatronic Products

Webinar for the first launch of Compose, Activate and Embed

Training Materials, Webinars

Multi-Disciplinary Evaluation Of Vehicle Platooning Scenarios

Presenter: Christian Kehrer, Business Development Manager, Altair

This presentation discusses the multi-disciplinary evaluation of truck platooning, with the lead truck sending out acceleration, braking and steering signals for the following trucks to react accordingly. The benefits address safety requirements, fuel savings, traffic capacity and convenience. The presentation demonstrates why platooning requires a holistic approach in the sense of connecting different modeling and simulation methods for a virtual evaluation of this system of systems.

Presentations, Videos

Exoskeleton Modeling Using MotionSolve & Activate

Presenter: Nino Michniok, Mechanical Engineering Student, University of Kaiserslautern

The first part of the presentation shows the detailed process of building the multibody system of an actuated exoskeleton in MotionView/MotionSolve (MV/MS). The required movements are transferred to the corresponding joints by “Motions”. By this the exoskeleton can Stand Up, Walk diagonally across the floor and Sit Down. In the second part the “Motions” in MV/MS are replaced by controllers (position control) whichdeliver a certain torque to actuate the exoskeleton. The main topic here is the implementation of the co-simulation between Activate and MV/MS. In the end the presentation gives a quick outlook of similar works at the University of Applied Sciences Kaiserslautern in Germany.

Presentations, Videos

Deep Reinforcement Learning for Robotic Controls

Presenter: Dario Mangoni on behalf of Alessandro Tasora, Engineering Professor and Digital Dynamics Lab Leader, University of Parma

This presentation address the use of the Proximal Policy Optimization (PPO) deep reinforcement learning algorithm to train a Neural Network to control a robotic walker and a robotic arm in simulation. The Neural Network is trained to control the torque setpoints of motors in order to achieve an optimal goal.

Presentations, Videos

Vehicle Concept Design using Ride & Comfort Requirements for Truck & Trailer System Dynamics

Presenter: Kaustubh Deshpande, Chassis Engineer, Nikola Motor Company

This presentation describes Nikola Motor’s progression of design maturity from 1D CAE to 3D CAD/CAE for chassis system engineering work on their electric trucks. This progression spans from Voice of Customer to Functional Requirements to Functional Deployment to Structural Deployment. Nikola Motor starts with a ‘First Principles’ model of their truck/trailer vehicle dynamics, then they perform system modeling & simulation with Altair Activate using quarter- and half-truck/trailer models. Block diagrams are created using both signal-based blocks and physical-based blocks (with Modelica). Through this methodical process, Nikola Motor is able to derive more and better insight earlier in their development process regarding important vehicle characteristics for their trucks – ranging from ‘yaw rate of the tractor for loaded vs. unloaded trailer’ to ‘full-trailer load distribution sensitivity due to fifth wheel location’. Work is in-progress to tighten the connection between their 1D CAE simulations in Altair Activate™ and their 3D CAE multi-body dynamics simulations.

Presentations, Videos

Heavy Equipment Simulations: Multi-body, Hydraulics & DEM

Presenter: Ronald Kett, Technical Specialist, Altair

For a Stewart-Gough-Platform (Hexapod), various software tools were used to study and design highly dynamic hydraulic drives together with an overall system control. Calculation of Eigenfrequencies, control design and comparison, hydraulic system design, and overall simulation control were done in Altair Activate, the mechanics of the Stewart-Gough-Platform was taken from a CAD model into Altair Inspire Motion. The co-simulation between control + hydraulics and mechanics was performed using Activate and Altair MotionSolve. Altair HyperView and HyperGraph were used to analyze and visualize the results. With the highly integrated solutions, the results could be achieved within a very short time. The different types of models (linear/simplified/full mechanics/hydraulics) made it possible to start with fast development cycles and finally achieve reliable results.

Presentations, Videos

Real-Time Simulator of a Mobile Crane

Presenter: Arnold Free, Chief Innovation Officer and Co-Founder, CM Labs

Mechatronic systems and off-highway equipment design is rapidly evolving. With advanced control features, operator-assistance systems, and even full autonomy on the horizon, engineers are building complex systems simulation models to better understand their smart machines. Through the use of interactive and immersive VR software, systems models can be derived from high-fidelity engineering simulations and used for operator-in-the-loop, HIL, and SIL testing. Interactive virtual prototypes allow for human-factors test and measuring system performance in hyper-realistic virtual worksites. Simulation is also being used for AI based perception and motion planning in autonomous systems. Sales and marketing departments are now using interactive simulations and visualization to demonstrate products. The value of simulation is expanding rapidly in OEMs. CM Labs Simulations has recently partnered with Altair to bring together engineering simulation and interactive real-time systems models to perform all of the above. Validated multibody systems dynamics models from Altair MotionSolve can be used to build interactive models in Vortex Studio and combined with advanced real-time 3d graphics to create immersive live simulations with human interaction. With real-time simulation, it is also possible to connect to interactive control models and system level multidisciplinary simulations with Altair Activate. The presentation uses a mobile crane model as an example. It will demonstrate the process of translating the engineering models to real-time, creating realistic working scenarios and deploying in immersive simulators for operator in-the-loop testing and system demonstration.

Presentations, Videos

Quadcopters: From System Modeling to Real-Time Simulator

Presenter: John Straetmans, Computer Engineering Student, University of Michigan

This project attempts to build an accurate real-time (RT) drone simulator through the full integration of a 1D functional model of a drone created in Altair Activate®, along with its corresponding geometry, into Unreal Engine via the Functional Mock-up Interface (FMI) standard. Then, VR, peripheral controllers, and other functionalities were added to the representation. This task was accomplished by modifying the Altair RT Vehicle Package, making it able to handle not just vehicles, but any system model located in an FMU for co-simulation, in this case a quadcopter model. Once the FMU containing the Altair Activate® drone model was successfully loaded into Unreal Engine, the tools provided by the application allow additional features to be added, such as VR support. By implementing an FMU, together with its geometry, into Unreal Engine, we can visually analyze the dynamics of the system to further verify the drone model and its performance. In the future, this integration process should be facilitated to automatically load any FMU following just a few steps.

Presentations, Videos

Modelica Library for Real-Time Car Simulator

Presenter: Dario Mangoni, Engineering Professor, University of Parma

In the modern car industry, the advent of hybrid and electric vehicle systems is driving radical changes in the car electronics and software, demanding more and more advanced controlling techniques. Self-stopping, self-starting, ultimately self-driving cars are nowadays possible, because of the multitude of sensors, controller units and actuators making the vehicles “smart”. To simplify and make the interaction between the user and the machine more and more intuitive and user-friendly, a much broader and deeper investigation of different use scenario combined with the human interaction and intervention is critical. In this context, higher-detailed vehicle models are required to provide a valid prototyping tool which can be reliably used to test innovative controlling strategies, such as testing with the Man-In-the-Loop. The Car Real-Time Modelica library proposed here aims at providing a highly valuable tool for the vehicle control system design and test. The key competitive advantages in this approach are in the Maple model-based compiler for supporting high-level of details modeling; the adoption of the Modelica language which allows a transparent and physical approach to the modeling activities and finally the Activate platform which offers real-time capabilities within an environment meant for the signal-based control design. To graphically validate the library results, a visualization framework for realistic real-time simulations that assures high-fidelity scenario in which to test user experience was also realized.

Presentations, Videos

Multi-body Enhancements & Customer Successes

Presenter: Rajiv Rampalli, Sr VP in HyperWorks Core Development team, Altair

Altair’s products for multi-body system simulation (MBS) – MotionView, MotionSolve, and Inspire Motion – form a key component of multi-disciplinary system simulations. In this presentation, we will look back on several achievements this year, in the form of customer successes as well as recent enhancements to these products which significantly extend the depth and breadth of capabilities. Some of these application examples also involve connections from MBS to other Altair technology or to 3rd-party technology such as to Altair OptiStruct (for flexible bodies and light-weighting) and Altair Activate (for hydraulics) and EDEM (for discrete element modeling of bulk materials).

Presentations, Videos

System Simulation for HVAC

Presenter: Christian Kehrer, Altair [on behalf of Oliver Höfert, Simulation Engineer at Kampmann]

The increasing virtualization of engineering methods is inevitable. This also holds true for the design of systems that take care for the thermal well-being of humans, e.g. in buildings. If it comes to simulation of so-called HVAC (heating, ventilation, air conditioning) systems, very often high fidelity approaches like CFD are connected to it. In contrary, this contribution illustrates a 1D modeling approach of a heat exchanger in use of Altair Activate. The presentation explains the implementation of the NTU (Number of Transfer Units) method in a system simulation environment. This includes a short description of the approach itself as well as its current limits. Based on the implementation of a single cell, differing network configurations for the evaluation of use cases of varying complexity will be shown.

Presentations, Videos

ROMs For Battery Cooling Systems

Presenter: Stefano Benanti, R&D materials engineer, Hutchinson

Battery cooling (BC) systems are frequently composed of several parallel branches, each leading to and away from a series of cooling plates. As a correct flow distribution in each branch and overall pressure drop are a key requirement from every customer, numerical computation is extremely important from the first stages of each project: the number of components and their dimensions have a relevant impact on the total cost and it is thus necessary to quickly provide results already in the Request for Quotation (RFQ) phase.The 3D computation of such cases, albeit feasible, takes a relevant amount of time and makes it more costly (both in terms of computational power and of necessary software licenses) to quickly provide results. The goal is then to develop a quicker method to provide results and allow for the necessary optimization cycles. Altair Activate® was chosen by Hutchinson to develop a library of ROMs representing different circuit components through which is possible to create 1D models able to respond quickly and precisely to such demands.

Presentations, Videos

Integrated Systems Simulation from Requirements

Ed Wettlaufer, Technical Manager Mechatronics Group, Altair [on behalf of NAVAIR]

Government solicitations for proposals, or RFPs, for aircraft and airborne systems require preliminary designs with enough fidelity to accurately predict performance, in order to prove the design's ability to meet the Governments performance requirements. Modern high-performance computing provides the leverage to execute previously expensive analyses in areas such as computational fluid dynamics. The results of these high order analyses can be used to populate parameters in 1D systems models which can be easily coupled to medium order models from other disciplines. These capabilities allow the design engineer to rapidly iterate to levels of model maturity and accuracy not achievable years ago, resulting in high levels of confidence in the designs performance predictions in unprecedented time. Moving forward, Altair engineers will employ Multiphysics and co-simulation to execute the Engineering and Manufacturing Development phase (EMD) for one subsystem of the preliminary design developed in the afore mentioned pre-acquisition phase.

Presentations, Videos

Multi-Fidelity E-Motor Drive Solution

Presenters: Ulrich Marl, Key Account Manager for Electric Vehicle Motor-Feedback Systems, Lenord+Bauer & Andy Dyer, MBD Sr Technical Specialist, Altair

This presentation shows a modeling process to quantify the position/speed sensor (e.g, encoder) effects on an e-motor, and corresponding control system for a concept traction motor similar to the Nissan Leaf. The integrated solution of the e-drive is carried in Altair Activate as a system builder, using other Altair solutions e-motor solutions in FluxMotor and Flux to generate data for the e-motor itself, as well as the optimal current values for the Field-Oriented Contoller. The inverter is driven with efficient space vector pulse width modulation. The integrated solution also supports different levels of modeling fidelity for the system components, for example for the e-motor where either direct co-simulation with Flux for detailed finite element analysis or a reduced order model (ROM) using look-up tables. In this way, sensor design parameters can be evaluated within an accurate system of the e-drive to improve performance and efficiency.

Presentations, Videos

Solving Challenges in Electric Motor Design

Presenter: Berker Bilgin, Assistant Professor of Engineering (ECE) at McMaster University and co-founder of Enedym Inc.

Electric motors in general, are made of certain parts, such as the stator, rotor, coils and magnets, and mechanical parts. These parts might look simple and bulky from the outside, however, the highly interrelated relationship between the geometry of these parts, characteristics of materials, and the way the current is controlled, defines the cost, size, efficiency, performance, and lifetime of the motor. In electric motor design, multidisciplinary aspects are highly interrelated. The effect of various parameters on the electromagnetic, thermal, and structural performance should be investigated together to come up with an optimized design. This is possible by developing the platforms where the multidisciplinary aspects are modeled in a software environment, as we are doing with Altair software.

Presentations, Videos

Altair MBD: Celebrating Accomplishments, What's Next

Presenter: Michael Hoffmann, Sr Vice President of Math & Systems, Altair

In this presentation, Michael Hoffmann, Sr Vice President, shares the company’s vision & strategy for Altair’s Math & Systems tools for Model-Based Development – based on providing an open platform tightly connecting 0D to 1D to 3D modeling & simulation. At different stages of their product development cycles, engineers can model and simulate their increasingly complex products as multi-disciplinary systems by using equations, block diagrams, and/or 3D CAD geometry. His scope includes Altair Compose™, Altair Activate™, Altair Embed™, and Altair MotionSolve™ as well as the multi-body motion capabilities in Altair Inspire™. He also spotlights several recent success stories about customers who have used these technologies to drive innovation through simulation.

Presentations, Videos

Internal Noise Simulation/Emulation

Presenters: Rafael Morais Cunha, CAE Engineer in NVH, FCA Group & Frederico Luiz de Carvalho Moura, NVH CAE Leader, FCA Group

To make the driving experience more comfortable for passengers inside a vehicle compartment, in an increasingly shorter development cycle, predictive methods for the acoustic response characterization are used by vehicle engineering teams. The main purpose is to estimate the sound field in the car cabin. The FCA NVH team identified in Altair tools an excellent opportunity to develop a complete solution for acoustics simulation. Supported by the Altair technical team, new methodology was created to convert frequency domain analysis into actual sound waves. This method was used to study the NVH steady-state acoustic performances. And development is in progress to simulate an acoustic environment to reproduce all vehicle noises in operational condition. Using this methodology, it’s possible to virtually understand the acoustic behavior of vehicles, helping to make decisions in early design stages which could save design cost, time and also improve the driving experience for passengers.

Presentations, Videos

Signal-Based Modeling Playlist

A playlist on signal-based modeling

Training Materials

Altair Activate DC-Motor

A DC motor comprised of mechanical and electrical subsystems

Training Materials

Altair Activate Double DC-Motor with belt

Two DC motors used to drive a belt

Training Materials

Altair Activate Two DC motors applied to clutch

Two DC motors applied to a clutch plate

Training Materials

Altair Activate Notch filter

Notch filter used to remove unwanted frequencies (noise) from a signal

Training Materials

Altair Activate Swingup Pendulum

Inverted pendulum by coupling multibody dynamics with controls (through co-simulation of MotionSolve and Activate)

Training Materials

Altair Activate Integrating CarSim via FMI

The Functional Mock-Up Interface is used to interface Activate with CarSim

Training Materials

Altair Activate RLC-circuit with different modeling approaches

Math, signal, and physical based modeling

Training Materials

Altair Activate Requirements Management

Activate Integration with the Systems Engineering Tool XLDyn

Training Materials

Altair Activate Mechatronic System Engineering

This webinar outlines how 1D block diagrams can be successfully combined with 3D non-linear multibody systems for model based development of mechatronic systems. Examples include an active suspension systems and a robotics application.

Webinars

Altair Activate Rotational system

A rotational-translational system including damping due to friction

Training Materials

Altair Activate Clutch

A dry-plate clutch used to transmit power from engine to driven wheels

Training Materials

Altair Activate Accelerometer modeling

A mechanical accelerometer using transfer functions

Training Materials

Altair Activate Hoistway Modeling

A highrise building roped hoistway elevator system

Training Materials

Altair Activate 1D Block Diagram Modeling

Model and simulate systems using one-dimensional (1D) block diagrams

Videos, Webinars

Altair Activate Physical Modeling via Modelica

Construct models using a physical modeling approach with Modelica

Videos, Webinars

Altair Activate Combining 1D Signal and Physical Blocks

Example of simulating a system-of-systems by combining signal-based modeling with physical modeling

Videos, Webinars

Altair Activate Open System Integration via FMI

Leverage the Functional Mock-up Interface to help couple together 3D models with 1D models

Videos, Webinars

Altair Activate 1D/3D Example: Active Suspension

Example of using both 1D models + 3D models together to simulate an Active Suspension system

Videos, Webinars

Altair Activate 0D & 1D Modeling

Example of using either 1D modeling or 0D modeling to simulate a basic electrical circuit system

Videos, Webinars

1D System Simulation Overview

Learn how Activate serves as Altair’s open integration platform for multi-disciplinary system simulation involving mechanical dynamics, controls, hydraulics, thermal effects, electronics, electromagnetics, and more. 1D diagrams can be built using either a signal-based approach or a physical modeling approach based on the Modelica and SPICE standards or both. Hybrid simulations can involve continuous time and discrete events. Models can be linearized for analysis in the frequency domain. Mixed models combining 1D+3D can be constructed and simulated by using the Functional Mockup Interface (FMI) standard. All tools are built-in; no extra-cost add-ons are required.

Webinars

Improving Truck Ride Comfort Using Vehicle Simulations

In order to improve low-frequency truck ride comfort, it is important to derive optimal Cab/Chassis Suspension & Damping values by evaluating the vehicle vibration characteristics caused by road surface condition. In this study, the ISO 8608 standard road profiles are implemented using Compose and MotionSolve. The vibration characteristics and the effect of design parameters are studied. The ride comfort performance is evaluated using the ISO 2631. Heavy Duty Truck (10x4 Cargo, Payload 25ton) is constructed with a flexible multi-body dynamics model using MotionSolve. The Quarter Car and Half Car’s vibration models are constructed with Compose and MotionSolve and the possibility of preliminary ride comfort evaluation was studied.

Webinars

Model-Based Development of Multi-Disciplinary Systems

Readily simulate complex products as systems-of-systems throughout your development cycle – from early concept design, to detailed design, then hardware testing (HIL). Combine mechanical models with electrical models (in 0D, 1D, and/or 3D) to enable multi-disciplinary simulation and leverage automatic code-generation for embedded systems

Technical Papers

E-motor Design using Multiphysics Optimization

Today, an e-motor cannot be developed just by looking at the motor as an isolated unit; tight requirements concerning the integration into both the complete electric or hybrid drivetrain system and perceived quality must be met. Multi-disciplinary and multiphysics optimization methodologies make it possible to design an e-motor for multiple, completely different design requirements simultaneously, thus avoiding a serial development strategy, where a larger number of design iterations are necessary to fulfill all requirements and unfavorable design compromises need to be accepted.

The project described in this paper is focused on multiphysics design of an e-motor for Porsche AG. Altair’s simulation-driven approach supports the development of e-motors using a series of optimization intensive phases building on each other. This technical paper offers insights on how the advanced drivetrain development team at Porsche AG, together with Altair, has approached the challenge of improving the total design balance in e-motor development.

Customer Stories, Technical Papers

Schneider Electric

An Altair customer for many years, Schneider Electric at first used only Altair Flux; now the company has extended their usage to several more software products in the Altair HyperWorks suite, including solutions such as Activate, MotionSolve, OptiStruct, and others to apply co-simulation in their development processes. Schneider feels their collaboration with Altair is more like a partnership than the standard supplier-OEM relationship.

Customer Stories

Multi-Physics Design and Optimization of a Complex Radar System

Today, most products are complex mechatronic combinations of advanced technologies, mixing electrical parts with controllers and embedded software. To efficiently manage innovative products, organizations are turning to a Model-Based Development approach for concept studies, control design, multi-domain system simulation and optimization. To meet this demand, Altair’s simulation and optimization suite aims to transform design and decision-making throughout product lifecycles with their multi-disciplinary software tools and consultancy services.

Technical Papers

Seamless integration of 0D-1D and 3D worlds

This webinar will introduce you to Altair Activate for control system design and the ease of solving real world problems with co-simulation between MotionSolve (multibody simulation suite) and Activate.

Videos, Webinars

System Simulation and Control: Improve the Overall Performance of your Mechatronic Systems using Altair Activate™

Discover a highly robust approach to simulate the performance of your entire product; assess the overall behavior of the multi-disciplinary system in the form of 0D, 1D and/or 3D models.

Webinars

Increasing Fidelity of Vehicle Dynamics Models

Activate models of a series-parallel hybrid electric vehicle powertrain coupled with CarSim via the Functional Mock-up Interface.

Training Materials

Increasing Fidelity of Electric Engine Models

Comparison of 3 different engine models for an HEV vehicle: Park equations, full 3D Flux model, table method; later one generated by Flux2D.

Training Materials

PMSM Simple Speed Control

Activate model of a permanent magnet synchronous motor (PMSM) with vector control for speed or torque.

Training Materials

Activate e-Mobility Series

This series discusses various aspects of system modeling for e-Mobility studies from overall performance simulations including fuel economy, to model refinements for electric engines and/or vehicle dynamics.

Training Materials

Fuel Economy Simulations

Activate model of a series-parallel hybrid electric vehicle powertrain to evaluate fuel economy and system performance.

Training Materials

EV Thermal Analysis: 1D and 3D Model Integration for Cockpit and Batteries

Presentation by Massimiliana Carello, from Beond & Politecnico di Torino.

Nowadays automotive climate control systems are evolving at a rapid pace to meet the overall vehicle requirements. System evaluation is one of the major requests currently faced by the automotive manufacturers and their suppliers. Thermal comfort, convenience and range are equally important user expectations, even if they may represent “opposed” performance for a modern EV, especially in an urban driving cycle.

In this framework, to achieve the expected targets and limiting the time-to-market and costs, a complete vehicle thermal model is to be developed to evaluate the cockpit thermal request for occupants' comfort at different ambient temperatures as well as solar radiation. Furthermore, the battery thermal management is to be investigated, to avoid cells damages and deterioration. The aim of this technical presentation is to highlight the integration capabilities of a lumped parameters model (1D) developed with Altair Activate for fast simulations and a CFD model (3D) of the battery liquid cooling system developed in AcuSolve. The Models realized are validated using experimental data.

Presentations, Videos

Transient Analysis of Switched-Reluctance Motor Drive by FE Model Co-Simulation

Presentation by Lino Di Leonardo, University of L'Aquila.

This presentation showcases an analysis technique of electric motor drive based on transient simulation tools and embedded finite element motor modeling (co-simulation). A couple of software tools, Altair Flux and Activate, are employed suitably interfaced each other. The first one allows the computation of the motor electromagnetic behavior using a finite element model, while the second one allows the dynamic simulation of the control and feeding converter. The interacting use of these tools allows a detailed prediction of the motor transient behavior under a given control strategy and drive scheme. As test case a multi-phase Switched Reluctance motor for aerospace application is considered.

The results demonstrate that the co-simulation procedure allows taking into account not negligible phenomena, such as dynamic torque ripple, usually not considered in similar studies. Hence, co-simulation analysis represents a significant step for the integrate design of the motor and control, as well as a meaningful tool for electrical drives education.

Presentations, Videos

Model-Based Development with Altair

Presentation by Dr. Michael Hoffmann, Senior Vice President of Math & Systems at Altair.

Understand the motivation and vision for Altair’s Model-Based Development (MBD); the products involved; What’s New with the 2019 release of these products (including Basic Editions free for everyone!); and a bit about the future development roadmap designed to enable ever-tighter integration of 0D, 1D and 3D models using an open platform for ever-broader multi-disciplinary system simulations – made cost-affordable through Altair’s unique units-based licensing and business model.

Presentations, Videos

Modelization of a Remote Control for Miniature Circut Breaker using Activate/MotionSolve Co-simulation and Flux3D

Presentation by Remy Orban, Senior Mecatronic Designer at Schneider Electric.

A business opportunity required the adaptation of a Miniature Circuit Breaker remote control for a specific application. To comply with time to market requirement, multiphysics model was the best way to run a feasibility analysis but the mechanical sub-system complexity makes this case difficult for conventional 1D modelling. As a result, co-simulation was used to build a comprehensive model in Activate using both, electromagnetic data from Flux3D and rigid body dynamics from MotionSolve.

Presentations, Videos

Form Follows Function - thyssenkrupp AG - Reinventing the Elevator Concept

Christian Kehrer presents on behalf of thyssenkrupp Elevator AG.

2017, thyssenkrupp Elevator AG has presented the MULTI concept, the world’s first rope-free elevator. The drive is ensured by a linear electromagnetic motor. To enable an economically feasible operation, it is necessary that the total weight of the lift does not exceed a certain limit. Designing the overall system of the MULTI lift according to this weight specification is one of the major challenge for thyssenkrupp Elevator.

In this presentation, an overview of the partnership between thyssenkrupp Elevator and Altair, the chosen design partner since the early phase of development, will be introduced. Thereby, different aspects of the simulation driven design process will be highlighted, taking into account several tools throughout diverse stages of the development cycle.

Presentations, Videos

Efficient Multidisciplinary Modeling of a Washing Machine Motor Duty Cycle

Presentation by Dr. Martin Ortega, Principal Design Engineer at Mabe.

This work presents a systematic process of the electromagnetic and thermal analysis of a washing machine single-phase capacitor-run induction motor during a full wash cycle. By utilizing an electromagnetic solver and a one-dimensional systems modeler, the designer is able to evaluate the thermal heat rise and power losses of the motor faster, at a limited cost and in a limited time.

Presentations, Videos

Aspects of Heterogeneous System Models in Industrial Applications

Presentation by Robert Höpler, Founder of SysOpt GmbH.

Heterogeneity can be present on various stages in system modelling and simulation. A system model is often called ‘multi-domain’, when different technical domains are present, such as hydraulics, mechanics, and control. When it comes to simulation this is just the surface of this domain level. Various mathematical and modelling formalisms can lie underneath which lead to different mathematical equations of motion, numerical properties, and computational complexity. On a specification level we see the choice between different modelling formalisms and modelling languages, libraries, coding styles, and authoring tools. Often there is a need to mix these. Decisions taken here strongly influence expressiveness of the models and ability for code generation and deeply impact software engineering topics such as development processes and exchange of models. Multi-domain approaches such as Modelica try to reconcile some these sources of heterogeneity. On an executional level we find classical desktop system simulation but more complex settings such as co-simulation, parallelization, real-time systems, and optimization which constrain numerical stability and precision and simulation speed. There might be an intricate feedback to the specification level, e.g., when modelling for specific solvers. Efforts like the Functional Mockup Interface (FMI) address some of these aspects and focus on interfacing and exchange of executional models. Prevalent system simulation tools are usually mature and controllable – as long as one stays within the desired scope of the tool. Following some examples we show how practical considerations influence design decisions and the choice of tooling.

Presentations, Videos

Simulation of a Gas Turbine and Generator System Under Steady State and Transient Conditions using Altair Activate

Presentation by Tomas Suguinoshita Quirino, GT2 Tecnologia.

This work presents the strategy created by GT2 Tecnologia to simulate the dynamics of a system comprised by a gas turbine coupled with an electrical generator, which is a typical schema for thermoelectrical powerplants. The mathematical models of the gas turbine and the generator are based on physical principles, such as mass and energy conservation, as well as on correlations from the literature, including heat transfer coefficients and tables of thermodynamic properties. The models have been developed and tested in native languages (Fortran 90 and C++) and their integration with Altair Activate is achieved through the Custom C Block functionality. The system is first tested in Activate in a base load scenario, being then subjected to load changes. This work discusses the test results and shows the advantages of using sT Activate in the simulation of thermal and electrical phenomena.

Presentations, Videos

Fast and Reliable Software Interfaces to Speed up the Design of Electric Motors

Presentation by Luigi Rizzi, Technical Director at SPIN Applicazioni Magnetiche.

The car industry is undergoing an unprecedented shift, between electrification, car sharing and autonomous drive. Car makers are going to roll out several zero-emission models in the next few years and their engineering departments are going to face new challenges. Engineering methodologies and good-design practices related to the well-known internal combustion engine must be reviewed and adapted to the electric propulsion system, considering multi-physic analyses in order to cover the various aspects of the vehicle performance. In this presentation a fast and reliable solution for the design of electric motors is shown.

A powerful software interface has been prepared in order to help the engineers to setup the model, define targets and boundary conditions, include multi-disciplinary verifications and collect analyses results. Using this tool, designers can easily and quickly perform electromagnetic analysis with the Altair software for electromagnetics, Flux, verify the performance in terms of delivered power, torque, losses and efficiency, check the thermal behaviour by means of equivalent thermal networks built in Activate and at the same time verify the stress levels and the NVH performance with OptiStruct, in order to define the early stage details of the product development. Activate plays a key role to speed-up the analysis because allows to obtain fast and accurate thermal information reducing the time usually required to simulate this domain.

Presentations, Videos

Virtual Tryout - Digitalization for an Efficient Commissioning of Forming Tools

Presentation by Dr. Lars Penter, Head of Machine Technology at University of Dresden.

The life cycle of a forming tool consists of five major phases. It starts with the process and tool design followed by its assembly, the ramp-up and serial as well as spare part production. Due to every increasing system complexities, various simulation tools accompany today’s tool life cycle. A popular term in the current world of production is the “Digital twin”. It is a simulation model, which contains at least two sub-models of different physical disciplines, connects different time scales and regularly synchronizes data with the real system. Such a model must be a highly accurate white box model.The presentation will address the generation of a virtual twin on the example of the virtual try-out of forming tools. The simulation model employs RADIOSS (for forming process simulation), MotionSolve (for multi-body simulation of machine mechanics) or Activate (for more complex multi-domain modelling of mechanics, hydraulics and electrical components). Currently, the digital twin allows for computing the interactions between forming process and die cushion. This enables the calculation of correlations between die-cushion cylinder forces and flange draw-in. The presentation shows how optimizing these cylinder forces in HyperStudy benefits the final part quality and shortens real tool try-out time.

Presentations, Videos

Bridging the Gap Between Requirements and Analysis using ModelCenter with Altair Activate

Presentation by Ilya Tolchinsky, Phoenix Integration.

Phoenix Integration is a recently added member of the Altair Partner Alliance. Its product ModelCenter can create complex, fully automated simulation workflows and link these against Model Based Systems Engineering (MBSE) models. These typically descriptive models can now include accurate prediction of the system performance. This means that the status of the system requirements can be verified early in the product design cycle helping to avoid costly mistakes. Using ModelCenter the systems engineer can explore the possible design options and choose a configuration that represents best value while meeting its requirements. This paper explores this way of working by using an example built around an Activate Anti-lock Braking System (ABS) model. The example includes a SysML model built in Cameo Systems Modeler. It is connected to a number of analyses that evaluate the performance of a braking system. The paper illustrates the details of the architecture for this integration. ModelCenter design exploration techniques are then used to find the optimal configuration.

Presentations, Videos

Multi-disciplinary System Simulation for Model-Based Development

Customers share their success stories illustrating how Altair Model-Based Development technology, and especially Altair Activate™, help them design better products faster. These customers give special attention to simulating multi-disciplinary performance aspects of their products as a system-of-systems. Given the complexity of today’s smart products, this often involves a combination of mechanical, electrical & electronic, and/or software aspects – and thus leverages both 1D and 3D models simulated together.

Presentations recorded at the 2018 Global ATC in Paris, France on October 18, 2018.

Presentations, Videos

Mabe

Mabe is a Mexico-based international appliance company designing, producing and distributing a wide spectrum of home appliances such as washing machines, dryers, cooking ranges, refrigerators, air-conditioners, microwaves, etc. Altair technology has enabled Mabe to increase the capacity of their washing machines by 35%, and the spin speed by 24% while reducing the cost per cubic foot by 10%.

Customer Stories

Mechatronic System Design

This webinar outlines how 1D block diagrams can be successfully combined with 3D non-linear multibody systems for model based development of mechatronic systems. Examples include an active suspension systems and a robotics application.

Webinars

Model-Based Development of Mechatronic Products

Learn how next generation math and system design products can be applied right from concept studies, control design, multi-domain system performance optimization to controller implementation & testing.

Webinars

e-Mobility: Increasing Fidelity of Vehicle Dynamics Models

Activate models of a series-parallel hybrid electric vehicle powertrain coupled with CarSim via the Functional Mock-up Interface

Training Materials

Ankers

Ankers performed co-simulation using a combined multibody and brake systems model in MotionView and Activate to generate more accurate results to analyze thermal and other effects on braking.

Customer Stories

Altair Activate Datasheet

Altair Activate provides an open integration platform for modeling, simulating, and optimizing multi-disciplinary systems-of-systems using inherent 1D block diagrams.

Brochures & Datasheets

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