Resource Library

Multiphysics Design Optimization Using an Adjoint Sensitivity Analysis

Optimal design methods involving the coupling of fluid and structural solutions are a topic
of active research; particularly for aerospace applications. The paper presents a coupled fluid and structure approach to topology optimization using two commercial finite element solutions; AcuSolve and Opt

Technical Papers

Snap-Fit Optimization for Achieving Desired Insertion and Retention Forces

Snap-fits are ubiquitous engineering features used to quickly and inexpensively assemble plastic parts. The geometric, material, and contact nonlinearities associated with snap-fit problems can present modeling challenges. Quasi-static solutions w...

Technical Papers

MIMO System Simulation in WinProp

This white paper presents and discusses practical examples of communication simulations involving Multiple Input Multiple Output (MIMO) technology. Two workflows exist for MIMO simulations in WinProp; this note discusses the workflows, and present...

Technical Papers

Using NovaFlow&Solid to Simulate Filters

Simulate pressed filters, foam filters, and a combination of foam and extruded filters with NovaFlow&Solid.

Technical Papers

Friction Stir Welding: A Manufacturing Process as Trendy as it is Reliable

Friction Stir Welding is a relatively recent solid-state welding process developed by Wayne Thomas in TWI and patented in 1991. This technology consists of the assembly of two similar or dissimilar materials using a rotating tool to ensure a mixin...

Technical Papers

White Paper: Reduce Calculation Risk with Units-Aware Math Software

Simply by using units-aware calculation software throughout a technical analysis, you eliminate unit conversion errors and provide a check on the physical validity of your equations. This saves time, removes a source of frustration and increases t...

Technical Papers

White Paper: Calculation Management Software for Chemical Engineers

This whitepaper examines how chemical engineers
use Maple™ for calculation management, transforming what would otherwise be isolated analyses into an intellectual asset.

Technical Papers

An Efficient Workflow for Composite Design & Analysis Using LAP, CoDA & Laminate Tools with HyperMesh

The task is to define optimal composite material and laminate property data, using HyperMesh in combination with Anaglyph’s composites design and analysis software tools.

Technical Papers

FEKO Lua Script: ISAR Image Processing

The script computes and displays an inverse synthetic aperture radar (ISAR) image from backscattered radar cross section (RCS) data over frequency and angle. Windowing functions, resampling and extracting the local maxima positions to file are sup...

Demo Models, Technical Papers

Manufacturing Chain Modeling with Virfac® Using HyperMesh

Running simulations before production is often a credo for many industries using manufacturing processes like welding, machining, heat treatment, etc. Virfac®, which stands for Virtual Factory, is the perfect tool to predict, anticipate and optimi...

Technical Papers

Multi-physics Electric Motor Optimization for Noise Reduction

In an electric machine, the torque is generated by electromagnetic forces which also create some parasitic vibrations of the stator. These vibrations excite the mechanical structure on which the motor is fixed and generate sound. When designing th...

Technical Papers

Thermal Analysis of Electrical Equipment A review and comparison of different methods

Nowadays, it is more and more difficult to design electro-technique devices without having a look at thermal stress. In more and more applications (more electric vehicles, more electric aircrafts, …) designers need to reduce weight, cost, increase...

Articles

How to Efficiently Design Power Transformers

Since approximately 40% of grid losses are dissipated from power transformers, there is now a great need to analyse these important components of the electrical network. Altair Flux 2D / 3D plays a key role in those investigations.

Articles

Optimizing Strain Gauge Placement with LW Finder & HyperMesh

This white paper demonstrates how to find the optimal locations to place strain gauges on a casted bracket in order to accurately measure loads.

Technical Papers

OptiStruct for Structural Analysis: Not Just for Optimizations Anymore

Reprint of Engineering.com article on OptiStruct as a structural analysis tool with built-in optimization capabilities

Technical Papers

Cogging Torque Computation and Mesh for Non-radial Electrical Motors in Flux®

All electrical motor designers know that the computation of cogging torque is a tricky task, particularly in 3D. Indeed, the amplitude of this variable is almost the same as numerical noise. In most cases, conventional mesh methodology is not suff...

Articles, Technical Papers

Finite Elements Method Modeling of Contactless Energy Transfer Systems

Contactless energy transfer (CET) systems are used in many industrial sectors. These include conveyors, trolleys, storage and retrieval units, baggage handling, battery charging stations, mobile phones and medical implants. The energy transfer mod...

Articles, Technical Papers

Comparative Study of Concentrated and Distributed Winding Using Flux®

The paper presents a comparative study of 3-phase permanent-magnet (PM) synchronous machines (PMSM) with concentrated and distributed windings. The purpose of this study is to identify the machine that gives the better electromagnetic performance ...

Articles, Technical Papers

Induction Heating and Forced Cooling Analysis with Flux®

Principle of induction heating and forced cooling (shower): induction heating is the process of heating an electrically conducting object without contact. The flowing of the current through the coil (see Fig.1) generates an alternating magnetic fi...

Articles, Technical Papers

Eccentricities Faults in a Rotating Machine Analyzed with Flux®

In the present energy efficiency context of electrical machines, diagnosis of rotating machines is increasingly studied. Designers seek to include the on-line, non-invasive diagnosis and typical signatures of the rotating machines faults in the st...

Articles, Technical Papers

Study of Mounted Surface Permanent Magnet Synchronous Machine Using Flux® Skew

Requirements: rotating electrical machine designers want high-reliability, minimum power losses, maximum power, maximum torque and low mechanical resonance vibration and noise. To meet the needs of electrical machine designers, CEDRAT started deve...

Articles, Technical Papers

Using CEDRAT’s Tool to Review Thermal Solutions

Nowadays, it is more and more difficult to design electrotechnique devices without considering thermal stress. In more and more applications (electric vehicles, electric aircraft, etc.) there is a need to reduce weight and cost, increase efficienc...

Articles, Technical Papers

Eccentricities Faults Magnetic Signature of an Induction Machine Determined with Flux®

In the literature we can find two approaches to make diagnosis: Model approach - a specific method for automation engineers. Depending on the mechanism adopted, we can distinguish three branches in this method: monitoring by observers, by analytic...

Articles, Technical Papers

FE Steady State Thermal Analysis of Squirrel Cage Induction Motors with Flux®

The thermal analysis of electrical machines and the related fluid dynamic computation, tasks associated with mechanical engineering disciplines, seem to interest electrical engineers less than electromagnetic analysis. But, with increasing require...

Articles, Technical Papers

Tunnel Magnetoresistance (TMR) Angle Sensor Simulation Results

The article presents the main results of magnetostatic 3D simulation using CEDRAT Flux software especially for new TMR angle sensor applications. Such magnetic sensors are deployed today in automotive electronics, as well as in many new industrial...

Articles, Technical Papers

Checking Remanence Issues with New Hysteresis Model

Remanence is what is left when all current is removed, and there is still some flux density left in the iron core. This is often the case with a close path for flux density, especially in U or E shape devices. To get rid of this effect, it is some...

Articles, Technical Papers

Regulate Current with User Subroutine Using Groovy Language in Flux®

For Switched Reluctance Motor, a specific command of current is often used with a chopper in order to decrease the current
ripple or hysteresis band. We propose to see in this example (see Figure 1) how to implement such a command in Flux using
groovy language.

Articles, Technical Papers

Cogging Torque Computation and Meshing for Radial Electrical Motors in Flux®

All electrical motor designers know that the computation of cogging torque is a tricky task in 3D. Indeed, the amplitude of this quantity is almost the same as the numerical noise. In most cases, a classical meshing methodology is not sufficient a...

Articles, Technical Papers

Analysis of Grounding Performances of a Car Body Using FEM Shell Elements

In the automotive domain, the EMC phenomenon of the current return occurs over a wide frequency band due to the fact that the paths followed by the current are very different between the lowest frequencies (a few Hz) and medium frequencies(hundred...

Articles, Technical Papers

Driving Higher Performance for Advanced Structural Analysis

Altair RADIOSS* and Intel® Xeon® Scalable processors combine to provide
an advanced solution stack for improved crashworthiness, safety, and
manufacturability of automotive structural designs.

Technical Papers

Speeding up Altair OptiStruct* Simulations with the Intel® SSD Data Center Family for PCIe*

Altair OptiStruct* provides engineers and designers with a unified solution from concept to final design by leveraging advanced analysis capabilities and novel, optimization-driven simulation. In this process, the simulation time for one optimizat...

Technical Papers

Less Interior Squeak and Rattle Noise Using a Simulation Driven Design Approach

In the development of new vehicles, the PSA Group aimed to detect Squeak and Rattle (S&R) problems before availability of physical testing. This led to a collaboration between PSA’s method development engineering team and Altair’s domain experts.

Customer Stories, Technical Papers

White Paper: How to Digitalize Effectively for IoT

Internet of Things (IoT) is starting to mature and organisations across many sectors are facing the challenges of scaling up from small, trial deployments and proof of concepts into mainstream, high volume consumer deployments.

Technical Papers

A Unique Design Enables Bladeless Wind Turbines to Harness Energy

Vortex Bladeless engineers created prototypes of this innovative wind turbine a couple of years ago. To reduce development time and cost, they turned to finite-element analysis (FEA) and computational fluid dynamics (CFD) solutions to hone their d...

Articles, Customer Stories

Weather Forecasting Gets Real, Thanks to High-Performance Computing

High-performance computing provides the processing power needed for researchers and scientists to deliver high-fidelity, accurate and timely forecasts. Applications such as weather forecasting and research call for finer granularity of data, lead...

Articles, Customer Stories

Lightweighting Initiatives Translate into Innovative Autos

General Motors and ContiTech North America Inc. deliver lighter, more fuel-efficient passenger vehicles, thanks to state-of-the-art design methodologies and manufacturing processes.

Articles

Simulation Speeds Roll Cage Design

Australian company relies on virtual tools to test the roll cage structures that keep motorsports drivers safe.

Articles, Customer Stories

Altair makes the "Best of 2016" issue of the German magazine Konstruktionspraxis

The December "Best of 2016" issue of the German magazine Konstruktionspraxis listed the best and most read articles, products, and news of Konstruktionspraxis throughout 2016.

"Once a year, for our December issue, we switch our role in the editorial board of Konstruktionspraxis with you - our re

Articles

Simple, Powerful HPC Clusters Drive High-Speed Design Innovation

Solution brief from Intel and Altair on how to enhance the performance of Altair's HyperWorks using Intel Xeon processors.

Technical Papers

OptiStruct is 17x faster with the latest Dell Precision Workstation

The reduction of run times up to 17X is a direct result of more powerful hardware and the more advanced algorithms in Altair’s latest software releases.

Technical Papers
237 Results