Altair OptiStruct™

Optimization-enabled Structural Analysis

e-Mobility Development Webinar Series

The electric mobility revolution is ready to go mainstream. OEMs, suppliers, and emerging vehicle manufacturers are investing billions to develop innovative electric vehicles and optimize development and production processes to deliver e-mobility to the masses. In these presentations, learn how Altair works with the world’s leading manufacturers and suppliers to accelerate product development, enhance energy efficiency, and optimize integrated system performance.

Webinars

Enhance Electronics Product Design Using Altair Multiphysics Solvers

Consumer Electronics products are getting more complex every day. This often requires more physics to be addressed during the design phase, while the development cycles are getting shorter. This webinar presents Altair’s workflow to enable simulation of structural, thermal, acoustics and fatigue properties in an integrated Multiphysics environment.

Webinars

Digital Twin Design Process for Efficient Development and Operation of a Customized Robot

In a joint project MX3D, ABB, and Altair demonstrated how a 3D printed robot can be improved by using a digital twin process to achieve more precise positioning.

White Papers

Guide to Additive Manufacturing for Medical

Additive manufacturing offers the medical community exciting opportunities to reduce cost and logistical hurdles while improving patient outcomes. Huge leaps in additive manufacturing innovation have been enabled by simulation-driven design. In this guide, we will explore the use of simulation and analysis technology in the medical field to design complex AM solutions, explore material decisions, optimize structures for performance, and ensure that designs can be printed efficiently.

Brochures

Developing a 3D Printed Solid-Lattice Hip Prosthesis

Total hip replacement surgeries are seeing an increase in demand, but between 10-20% of these patients may require a revision surgery because of a failure or wearing out of the prosthesis. When an implant causes a change in the typical stresses on the surrounding bone, a phenomenon called stress shielding occurs. Stress shielding increases the risk of bone resorption, bone fracture, and revision surgeries. Topology optimization helps medical product designers develop implants that better match the stiffness of healthy bone and improve the comfort and longevity of the prosthesis. In this study, Altair uses simulation to design an optimized solid-lattice hip implant that reduced stress shielding by more than 50%.

Videos

Accelerate Electronics Design Modeling Using Altair Multiphysics Platform

As high-tech electronics companies adopt Multiphysics solutions, they may introduce new complexity in the development process coupling multiple tools. Model setup, remeshing, and design modification offer no additional value and increase the product lead time. This webinar presents Altair’s single model multi electronics system in an integrated Multiphysics environment.

Webinars

A Nose Cone for Winning: ARUS Andalucía Racing Team Improves Impact Characteristics of Formula SAE Car

When Ana Casares Crespo, a former member of the ARUS Andalucía Racing team from University Seville in Spain, was looking for a final degree project, the team was inspired by the capabilities of Altair’s software. They came up with the idea to improve the impact properties of the vehicle nose cone laminate with the help of simulation. With more than seven students actively using Altair products to improve various aspects of the vehicle, the decision to incorporate Altair tools was an obvious choice. They wanted to make use of the knowledge they had gained from previous studies for structural design of aerodynamic packages. The team conducted static analysis and topological optimization using tools from the Altair HyperWorks™ suite, which helped them create optimized, lighter components. To improve the impact properties of a Formula SAE car’s nose cone laminate, the Altair solution included structural analysis, and topology optimization verifying structural behavior of a new material. The benefits were improved impact characteristics and fracture properties, and lighter components.

Customer Stories

EM and EDA, from Concept to Production

Altair’s portfolio of simulation-driven design solutions covers – amongst many other disciplines – electromagnetics (EM) and electronic design automation (EDA).

Presentations

Optimization-enabled Structural and Multiphysics Analysis

Simulation-driven design powered by topology optimization was created by OptiStruct over two decades ago. Its success has changed the CAE/CAD industry as today all vendors have embraced this trend.

Presentations

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If you want to supercharge your throughput, spend your days making radical improvements and work confidently from an easy-to-use browser - have we got a show for you! Begin the journey to lead your people to triumph and glory as you learn about the joys of unlimited software, supercomputing hardware and a SysAdmin waiting to fulfill your every desire with HyperWorks Unlimited HPC Appliances.

Presentations

Altair SimLab - Fatigue Optimization

The latest release of Altair SimLab includes an automated workflow to setup a topology optimization study on components withstanding fatigue loads. The solution leverages Altair OptiStruct's capabilities and enables to setup, run and analysis the optimization results all within SimLab.

Use Cases

Using Multiphysics to Predict and Prevent EV Battery Fire

Electric vehicles (EV) offer the exciting possibility to meet the world’s transportation demands in an environmentally sustainable way. Mass adoption could help reduce our reliance on fossil fuels, but the lithium-ion (Li-on) batteries that power them still present unique challenges to designers and engineers, primary among them to ensuring safety against battery fire. To achieve vehicle manufacturer’s ambitious adoption goals, it is necessary to improve the safety of Li-on batteries by better understanding all of the complex, interconnected aspects of their behavior across both normal and extreme duty cycles. Altair is focused on developing a comprehensive understanding of automotive battery safety issues which it has named the Altair Battery Designer project. It combines innovative design methods and tools to model and predict mechanical damage phenomena as well as thermal and electro-chemical runaway. Altair has developed an efficient way to calculate mechanical and short-term thermal response to mechanical abuses, providing accurate computational models and engineer-friendly methods to design a better battery.

White Papers

Altair for Industrial Design Applications

Altair’s industrial design tools allow designers, architects, and digital artists to create, evaluate, and visualize their vision faster than ever before.

Brochures

Altair for Multiphysics Applications

Altair provides an industry-leading portfolio of multiphysics-enabled software to simulate a wide range of interacting physical models including fluid-structure interaction (FSI), flexible bodies, aeroacoustics, and thermomechanical simulation.

Brochures

Altair for Structures Applications

Altair offers industry-leading engineering analysis and optimization tools from simulation-driven design concepts to detailed virtual product validation, and simplified modeling workflows to advanced high-fidelity model building.

Brochures

Reduction of Moving Masses – Streamlined Design for Improved Engine Performance

To expand the rpm range of a motorcycle engine, a new type of rocker arm with lower inertia was needed at KTM. The new rocker arm was required to have the same, or better stiffness and deformation level as the previous design. KTM used Altair HyperWorks™ for nonlinear topology optimization and nonlinear structural analysis to develop the new rocker arm. Thanks to this, the component inertia could be reduced by 15 percent, component mass was reduced by 21 percent, and the stiffness increased by 14 percent which lead to an extension of the rotational speed by 150-200 rpm.

Customer Stories

Built for the Future - SOM Achieves Sustainability Objectives Through Innovative Design

Skidmore, Owings & Merrill (SOM) is a renowned global architectural, urban planning, and engineering firm. Known for some of the world’s most technically and environmentally advanced buildings, SOM applies creativity and emerging technologies to design buildings for the future. SOM designed the new United States Courthouse in Downtown Los Angeles to be an open and transparent public space, while also constantly considering the materials used in the project and the project's environmental footprint. The structural design specialists at SOM used Altair OptiStruct to generate an ideal project plan that considered sustainable regulations and manufacturing constraints.

Customer Stories

Enabling EV Excellence – Simulation Helps Rimac Improve Structural Design of Innovative Hypercar

Rimac Automobili’s main challenge has been to design a monocoque as a single carbon fiber part with an unprecedented size. Hence, in the development of the monocoque, the main topic to manage was the material, a lightweight, carbon fiber reinforced with epoxy resin. As this carbon fiber is an orthotropic and brittle material, its representation in a finite element (FE) material card is very difficult. To meet this challenge the company introduced Altair HyperWorks™ into their development process.

Customer Stories

Additive Manufacturing for Production

The Additive Manufacturing for Production survey conducted by TCT Magazine in association with Altair set out to understand the community’s desire and readiness for the much-promised land of series production using additive technologies. This collaboration between TCT and Altair was designed to understand the needs of the community in terms of current production capabilities, rate-limiting steps and areas of the technology that they believe needs improvement.

Technical Papers

Training - Save Costs by Moving Non-Linear Physics Loadcases to Altair OptiStruct

Save Costs by Moving Non-Linear Physics Loadcases to Altair OptiStruct

Webinars

SimLab St & HyperStudy - CAD Based Parametric Optimisation

CAD Based Parametric Optimisation Using SimLab St & HyperStudy

Training Materials, Webinars

Training - Nonlinear Static & Dynamic Analysis With Pretension Effects Using OptiStruct

Nonlinear Static & Dynamic Analysis With Pretension Effects Using OptiStruct

Webinars

Introduction to Altair's Multi-Disciplinary Optimization

MDO Director - Introduction to Altair's Multi-Disciplinary Optimization

Webinars

Renault Nissan Mitsubishi Alliance Uses Altair SimSolid to Bring Vehicles Chassis Faster onto the Road

Renault Nissan Mitsubishi Alliance is a French-Japanese strategic partnership between the automobile manufacturers Renault (based in France), Nissan (based in Japan) and Mitsubishi Motors (based in Japan). Today, the automotive group has 122 manufacturing plants worldwide with nearly 450,000 employees controlling ten major brands: Renault, Nissan, Mitsubishi, Infiniti, Renault Samsung, Dacia, Alpine, Datsun, Venucia, and Lada. The ambition of the alliance is to offer autonomous drive, connectivity features, and services on a wide range of affordable vehicles. As part of the Renault Chassis Le Mans plant, which is building car-to-ground connecting components for the Renault Group and for the Alliance, the CTC Chassis Technical Center is a CAD engineering center where 350 engineers and technicians are working with a focus on testing and validation. Renault has been using SimSolid to perform simulations to develop lighter chassis faster.

Customer Stories

HyperMesh & OptiStruct - Composite Design and Analysis

Composite Design and Analysis Using HyperMesh-OptiStruct

Training Materials, Webinars

Training- Aero Modelling Tools In HyperWorks

The Aero Utility tools available under User Profile>Engineering Tools>Aerospace options enables Aerospace engineers with unique modelling capabilties required in building Aero models. In this Webinar, we will explore a few of those utilities viz Airframe meshing, Composites Material Orientations, Compare FE contents and so on.

Webinars

Training: Model Design Variations In Mesh Morphing Using HyperWorks New User Experience

The tool allows you to alter finite element models while keeping mesh distortions to a minimum. HyperMorph can be used to: • Change the profile and the dimensions of your mesh • Map an existing mesh onto a new geometry, and • Create shape variables that can be used for optimization

Webinars

CAD & CAE Model Verification Tools Using HyperWorks New User Experience

This tool allows engineering analysts to validate CAD models received from the design teams, automatically identifying potential issues that could slow down the pre-processing stage of the simulation life cycle. The solution identifies part intersections, missing welds and incorrect bolt-nut positions on an entire assembly structure and generates comprehensive reports.

Webinars

Attaining Nonlinear and Multiphysics Mastery for SMBs with SimLab and OptiStruct

A growing number of companies aspire to perform multiphysics, but each added analysis tool introduces new complexity to a development process. Model translation, remeshing, design modification – these tasks offer no added value and increase the likelihood of error. Altair SimLab enables users to model and solve multiple physics, including nonlinear analysis, within one unified platform. Each analysis runs from one master model, allowing you to spend less time prepping and more time solving. Join the webinar to see these powerful workflows in action. In this webinar, we will demo the design of a smart speaker with an emphasis on nonlinear analysis, multiphysics, and improving perceived sound with vibro-acoustic simulation.

Webinars

Generative Design Gallery

Watch the video to learn how Altair enables designs for production, moving additive manufacturing from an advanced capability to a production capacity with the power of simulation.

Videos

Accelerating Complex Linear and Nonlinear Analysis Processes from HyperMesh to OptiStruct

Supported by the streamlined, intuitive workflows in HyperMesh, running nonlinear analysis in OptiStruct is easier and more powerful than ever. Nonlinear explicit analysis is now supported, enabling simulation of drop tests, impact analysis, and more. Check out this webinar to see how Altair’s unified modeling and simulation platform can eliminate tedious meshing tasks and accelerate your nonlinear analysis processes. In this webinar, we'll demo 5 different car door abuse use-cases, solving using linear dynamics, nonlinear quasi-static implicit, and nonlinear explicit dynamics analysis in OptiStruct.

Webinars

Webinar: Accurate and Efficient Simulation of Laminated Composites

Webinar: Accurate and Efficient Simulation of Laminated Composites. This webinar presents a complete composites workflow for all industries, the simulation-driven design workflow allows for an efficient process that enables time and money reduction.

Webinars

Electric Motors Multidisciplinary Optimization Platform

The design of a high-performance e-Motor is a complex undertaking. Engineers have conflicting constraints to consider including efficiency, temperature, weight, size and cost. To explore more ideas, better understand their designs and improve performance, Altair HyperWorks™ has a workflow to guide motor designers through an efficient process of Simulation-Driven Design. This analysis and optimization solution supports multi-disciplinary teamwork and reduces design times.

Use Cases

Ship Foundation Design using DDAM-coupled Optimization Methods

This paper presents a case study of a ship foundation optimized for DDAM early in the design phase to validate and optimize the structural integrity of a ship foundation subject to underwater shock conditions.

Technical Papers

InnAccel Leverages Altair OptiStruct for Validating Fetal Monitoring System

A . Vijayrajan Founder and Chief Technical Officer, InnAccel talks of how simulation brings design differentiation in the medical device industry. His team speaks of the use of Altair OptiStruct non-linear solution for designing snap fit of the device carrying case.

Customer Testimonials

OptiStruct – Imperfection

Tips and Tricks #1403: OptiStruct – Imperfection Geometric imperfection can be applied to stability sensitive structures which have difficulties in being solved, because of local or global buckling.Imperfection helps to transform the bifurcation problem into a limit point problem.

Tips & Tricks

OptiStruct – PSEUDO Damage Calculation

Tips and Tricks #1404: OptiStruct – PSEUDO Damage Calculation PSEUDO damage calculation • Speedup the fatigue calculation dramatically. • Effective if the small damaged elements are not of concern. • SN/EN and Uni-axial/Multi-axial base metal fatigue with static subcase • Optimization supported.

Tips & Tricks

OptiStruct – Membranes in LGDISP & Plasticity

Tips and Tricks #1405: OptiStruct – Membranes in LGDISP & Plasticity Membranes are supported now for LGDISP NLSTAT analysis.For Nonlinear materials, plasticity is supported for membranes– both SMDISP and LGDISP.Both 1st order and 2nd order elements are supported for SMDISP and LGDISP NLSTAT.Stress on membranes should be comparable (not exact) to surface stresses on solids (which can be obtained with specifying ISOP option as INT0 in PSOLID, and output stress at GAUSS location).

Tips & Tricks

OptiStruct – New Beam Formulation

Tips and Tricks #1406: OptiStruct – New Beam Formulation New Beam Formulation (Timoshenko) • Timoshenko beam theory formulation is introduced with PARAM,BEAMALT,YES for CBAR/CBEAM.Default is NO. • With this formulation turned on, the shear deformation of the beam will be more accurate and rotary inertia will alsobe added. For the maximum accuracy, it is recommended to use PARAM,COUPMASS,YES.

Tips & Tricks

OptiStruct – CGAP Force Output Includes Preload

Tips and Tricks #1407: OptiStruct – CGAP Force Output Includes Preload CGAP Force Output Includes Preload • Preload force ‘F0’ is included in the CGAP element force output. • Preload force ‘F0’ is supported for Nonlinear static analysis (SMDISP/LGDISP), and ignored in linear analysis. • The output is available in *.h3d and/or *.op2. & with OPTI forces are written to a .force file. • With NLOUT request, incremental CGAP force output is available in *.h3d and .force file. • Currently ‘on the fly’ CGAP force output in *.impl.h3d file is not available.

Tips & Tricks

Altair OptiStruct – Viscoelastic Material

The behavior of Viscoelastic materials is intermediate between the idealized behavior of elastic solids and viscous liquids. The time domain Viscoelastic material in OptiStruct is represented by the generalized Maxwell model and is defined by a Prony series expansion.

Tips & Tricks

Altair OptiStruct – Creep Material

Creep is the permanent time dependent deformation occurring in structures, can be defined using MATVP bulk card entry. It is based on power-law model and can be used in its ‘time hardening’ form or in the corresponding ‘strain hardening’ form.

Tips & Tricks

Altair OptiStruct – Manufacturing Constraints Support for Multiple-Material Topology Optimization

All manufacturing constraints are supported for Multiple Materials Topology optimization (MMAT) from v2019.1.Different manufacturing constraints could be applied to different candidate materials in the same design domain. The original material defined by property will not be taken as candidate material by default. OptiStruct will error out if there is only one candidate material defined for the same design domain in MMAT.The element density result is available for all candidate materials in v2019.1.

Tips & Tricks

Multidisciplinary Workflow to Assess Modal Fatigue Results of a 4-Cylinder Crankshaft Using AVL EXCITE, OptiStruct and FEMFAT

The crankshaft of an engine is a highly dynamically loaded component that is continuously optimized and optimized in terms of design and production technology. In order to be able to reproduce this in the simulation, the essential influences must be considered. This includes the dynamically behaviour in combination with the engine, the material properties and the application of the loads and their transfer to other parts (bearings). The modal approach has established itself as a proven method here, whereby a modal basis is determined in the FEM so that the crankshaft is integrated as a flexible body in the MKS model of the engine, and so that an entire engine run-up can be simulated. The modal participation factors are obtained from the MBS simulation, which are used together with the modal stresses for the safety factor calculation. This workflow requires the combination of different simulation tools. The challenge is to organize the data transfer between the tools efficient and correct. In this example, the workflow is realized using OptiStruct from Altair for FEM calculation, EXCITE from AVL as MKS tool and FEMFAT from Magna Powertrain ECS as Fatigue solver. This makes it possible to simulate a complex engine run-up with consideration of the ignition bearing forces and to calculate the fatigue life of the crankshaft in FEMFAT. This webinar, details of the simulation workflow of the 4-cylinder crankshaft will be presented and the effects of several influencing variables on the fatigue life will be studied.

Webinars

Development of A new vehicle front sub-frame using Altair Inspire topology optimization

Presentation by Edan Lazerson, CAE Engineer, Plasan. The Stormrider is a new vehicle which was designed from scratch and developed by Plasan. Altair Inspire was used for Topology optimization In order to find the ""best"" design for the vehicle front sub frame. The available volume (design space), 5 different load cases and target mass were specified and the optimization software calculated geometry to maximize stiffness. The optimization results were complex to manufacture with traditional technologies; the simulation and design teams collaborated on designing a manufacturable front sub frame assembly. The new design was simulated to ensure it will withstand all the required loads. The front sub frame was implemented and tested on the prototype vehicle. The optimized front sub frame proved mechanically sound, while satisfying the mass and geometrical requirements. The early stage optimization reduced the development time, by creating a valid geometry however, the topology to manufacturable design process is not trivial. In this presentation, we will present the mentioned development stages and compare the test results to the simulation predictions. Presentation at the ATCx in Israel, Netanya on October 30, 2019.

ATC Presentations

The Increased Importance of BIW & Powertrain Integration in Electric Vehicle Development

Jamie Buchanan, UK Technical Director at Altair presents at the 2019 UK e-Mobility Seminar. Global Review of the EV Architecture. Integration Opportunities (e.g. Battery System Packaging, BIW / Battery Tray Integration)

Presentations, Videos

The Challenges Associated with the Electrification of Motorsport Platforms

Michael Gascoyne, CEO of MGI Technologies presents at the UK e-Mobility seminar 2019.

Presentations, Videos

The C123 Process - A Rapid Simulation Process to Optimise the Weight & Performance Attributes of a BIW Structure

Dr. Stuart Bates, Concept Technical Specialist at Altair presents at the UK e-Mobility seminar 2019. Rapid Exploration of Packaging Alternatives e.g. Battery System Layout, Battery Frame / BIW Integration. Developing Balance Design (Weight vs Attribute Performance), Target Setting using Simulation.

Presentations, Videos