Altair Flux™

Electromagnetic, Electric, and Thermal Analysis

Meet your Energy Efficiency Goals in your Electrification Projects with Simulation

Electrification is one of the main means of creating a low-carbon economy, allowing to use renewable energies and energy efficient technologies. Electric power enters many industries and also impacts our everyday lives, especially with the electric mobility. The use of power electronics and control systems allows offering better reliability, safety and low maintenance costs, and also brings additional innovative functions. Learn how Altair simulation and optimization tools can help designing highly efficient electric machines, as well as advanced control strategies to help you build innovative and energy efficient electric solutions.

ATC Presentations

An Efficient and Automated Design Strategy for Multi-physics E-Motor Development

This presentation introduces an application of a unique, highly automatic, multi-physics design strategy for E-motors, based on a current program at Mercedes-AMG GmbH. The strategy considers essential development requirements including electromagnetics and thermal requirements, NVH, stress and durability. It accommodates for DOE, multi-objective optimization and design exploration methods to be used to explore and find feasible motor designs. The presentation will show how the strategy adds efficiency to the E-motor development process and how it impacts the total costs of development.

ATC Presentations

Using Machine Learning and Optimization to Develop e-Motor

The Altair Multiphysics platform provides a broad portfolio of solvers and tools to help engineers develop e-motor design requirements by using simulation and optimization methods. This presentation provides examples, using Altair Machine Learning and optimization solutions, of the e-motor requirements by leveraging in data available, which is key for e-motor designers to reduce time-to-market.

ATC Presentations

Modeling the Thermal Runaway Behavior of Li-ion Batteries upon Mechanical Abused Loading

This presentation demonstrates Altair’s capability of simulating the behavior of a mechanically damaged battery from a cell to a pack integrated in a vehicle, based on collaborative research previously conducted with MIT. An innovative approach of applying electromagnetics loss to predict rising temperature due to short circuit effects during an impact is discussed, along with the development of a software tool, Battery Design, which enables OEMs and suppliers to design battery applications using multiphysics optimization, including mechanical-electrical-electrochemical-thermal behaviors.

ATC Presentations

Upcoming New Wireless Solutions and Applications, including 5G

The rollout of 5G technology is going to be a boon across many industries globally, with the expansion of IoT and connected devices, and where lower latencies are opening the door to time-critical areas like autonomous vehicles, industrial IoT and healthcare. In this presentation we will share new applications and use cases from different major verticals, showing how organizations are designing innovative products using Altair electromagnetic simulation solutions related to antennas, wave propagation modelling, radio network planning and EMC applications. We will also talk about new solutions we have recently launched, and about what is available and coming in 5G.

ATC Presentations

NVH Refinement for Electric Vehicles

Replacement of traditional combustion engines with an electric powertrain, bring electro-mechanical induced tonal and high-frequency whine noise. In addition, tire and aerodynamic turbulent noise become more prominent in the absence of a standard Internal Combustion Engine. Also, the perceived sound quality imposes a new set of challenges. This leads to completely new methods of NVH refinement, keeping the decades of research aside. As it is important to address these issues at the design and development stage, adopting the new simulation techniques to manage future NVH challenges in e-Mobility is of the prime challenge to the traditional NVH engineers. In this webinar, we shall discuss some of those key NVH challenges specific to electric vehicles and appropriate simulation processes to develop countermeasures.

Webinars

Traction Motors Design & Multidisciplinary Optimization

Traction Motor play key role in the electric vehicle/hybrid electric vehicle (EV/HEV) development process. 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.

Webinars

Customer Successes & Recent Enhancements

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).

ATC Presentations

FREE eBook: Learn Electromagnetic Simulation with Altair Feko

Altair Feko is an environment to solve electromagnetic problems. This book takes the reader through the basics of broad spectrum of EM problems, including antennas, the placement of antennas on electrically large structures, microstrip circuits, RF components, the calculation of scattering as well as the investigation of electromagnetic compatibility (EMC).

eBooks, Training Materials

FREE eBook: Flux2D Simulation of the Rotor Bar Breakage

This book is a step by step introduction in the building of finite element models using Altair Flux Student Edition 2018.1.2 for a squirrel cage bar breakage process and broken bar faults in an induction motor.

eBooks, Training Materials

Advanced Hystheresis Simulation Using Preisach Model - Altair Flux

Newly introduced in Altair Flux, the hysteresis modeling based on Preisach's model enables a better evaluation of iron losses and remanence effects. Flux captures the complexity of electromechanical equipment to optimize their performance, efficiency, dimensions, cost or weight with precision, bringing better innovation and value products to end users. Flux simulates magneto static, steady-state and transient conditions, along with electrical and thermal properties.

Videos

Taking Demagnetization Into Account - Altair Flux

Demagnetization simulation: considering the magnet demagnetization phenomena during the solving process simulation enables very accurate predict the device performance, and measure the impact on EMF and torque for instance. Flux captures the complexity of electromechanical equipment to optimize their performance, efficiency, dimensions, cost or weight with precision, bringing better innovation and value products to end users. Flux simulates magneto static, steady-state and transient conditions, along with electrical and thermal properties.

Videos

Advanced e-Motor Design Dedicated Environment - Altair Flux FeMT

Designing an e-Motor has never been a simple task. Altair Flux, the solution for accurate electromagnetic detailed design, not only enables to quickly generate 2D and 3D motor models with its Overlays. Its new module now produces efficiency maps and automatic reports in the same appreciated FluxMotor supportive environment. Flux captures the complexity of electric motors and electromechanical equipment to optimize their performance, efficiency, dimensions, cost or weight with precision, bringing better innovation and value products to end users. Flux simulates magneto static, steady-state and transient conditions, along with electrical and thermal properties.

Videos

Conductor Impedance and Near Field Simulation using Altair Flux

Altair Flux captures the complexity of electromechanical equipment to optimize their performance, efficiency, dimensions, cost or weight with precision, bringing better innovation and value products to end users. Flux PEEC is a dedicated environment to electrical interconnection modeling for EMC and power electronics applications, from small wire bonds and PCB tracks, up to busbars, power modules and large distribution switchboards. Flux PEEC evaluates parasitic inductances and capacitances, analyse the current distributions and resonances, including skin, proximity and capacitive effects and computation of Joule losses, radiated magnetic fields and Laplace forces.

Presentations

New Features of Altair Flux Electromagnetic and Thermal Simulations

Altair Flux captures the complexity of electromechanical equipment to optimize their performance, efficiency, dimensions, cost or weight with precision, bringing better innovation and value products to end users. Flux simulates magneto static, steady-state and transient conditions, along with electrical and thermal properties.

Videos

Model Export to Altair Flux

Once a designers has defined its motor concept in Altair FluxMotor and evaluated its global performance, he can perform more detailed analysis, exporting his machine in Altair Flux and working with high-fidelity models. Significantly, Flux enables more accurate prediction of motor behavior, with advanced losses computation, considering eccentricities, magnet demagnetization, effects of manufacturing process, and couple to Altair HyperWorks for multiphysics analysis.

Videos

Magneto Vibro Acoustic Design of PWM Fed Induction Machines

Induction Motors (IM) are widely used in various industries. To ensure their speed control, IM will be supplied with pulse width modulation (PWM). This kind of supply, can impact efficiency of the motor and degrade its vibro-acoustic behavior, generating noise nuisance. To tackle these technical challenges and ensure best-in class acoustic comfort for users, it is necessary to design a quiet e-motors at the early stage of design. The first aim of this paper is to show a new method to reduce noise and vibration due to PWM supply of induction machine. The proposed approach allows the passive reduction of air-gap flux density harmonics in an induction machine. The second interest, is to show a new method to analyze the vibro-acoustic behavior of a PWM-fed IM. The method is fully finite element (FE) computation. Finally, the third interest of this article, is to compare noise and vibration results between the proposed FE method, magneto-vibro-acoustic coupling and measurements. Good agreement between measurements and computation will be shown.

Technical Papers

The Multiphysics Optimization Platform for e-Motor Innovation

Altair develops multiphysics simulation technologies that allow you to accelerate next generation mobility solutions development. From smart control design to powertrain electrification and vehicle architecture studies, our solutions enable optimization throughout the development cycle, all backed up by a global team of engineering consultants.

Videos

A New & Revolutionary Way to Collect Energy from Wind

David Yáñez presents at the UK ATC 2019. Vortex Bladeless is a Spanish start-up that is developing a new wind energy technology. Its key characteristic is the minimization of mechanical elements that can be worn by friction. In the first stage, its application area seems to be distributed energy. For its development, CFD tools are being of vital importance. Both the fluid-structure interaction and the behavior of the magnetic fields in the alternator are being studied mainly with this type of tool. The results obtained are being contrasted with experimental results obtained both in wind tunnel and in real application environments.

A general vision of the technology, the strategies used for the integration of the different physical phenomena involved and the path traveled for its development will be exposed.

ATC Presentations

E-Motor Weight and Cost Reduction Webinar

Nowadays, it is more and more challenging to design an e-motor. Many constraints have to be fulfilled, including maximizing power using minimal size, considering thermal constraints, material and production costs, and of course reducing weight. In order to meet these constraints, a multifaceted solution is needed, leveraging physics tools in combination with optimization methods. This webinar will introduce Altair's e-motor design and optimization solutions in a step by step process. We will discuss pre-design, magnetic computation and thermal analysis and show how optimization methods can help to optimize weight and cost at each step of the process (especially the weight of magnets) . We’ll demonstrate how Design Of Experiments (DOEs) allows designers to run different types of optimization very quickly, which enables informed decisions at different stage of the design cycle.

Webinars

Improving Electric Vehicle Range with Advanced Losses Computation Considering PWM Across a Full Duty Cycle

Introducing electric traction in automotive brings new challenges for the design of electric machines. Nowadays designers have to consider increasing constraints like efficiency, temperature, weight, compactness, cost but also stricter regulations, while reducing time to market. Fortunatly, Altair proposes disruptive methodologies to make relevant choices in the early stage of the design, based on numerical simulation and optimization techniques. Once the machine has been selected and designed in Altair FluxTM this webinar covers how an electric motor design's performance is evaluated and maximized considering its global efficiency along the whole driving cycle. The next design challenge is to get an accurate estimation of the losses, which becomes more and more strategic in the design process in order to accelerated speed to market with balanced design and confidence. This estimation is also a key issue of thermal design. Therefore, the study of losses (in particular non-conventional losses) is crucial. Two methods are proposed to take the current wave form into account: by using an equivalent circuit model in Altair ActivateTM system modelling software, or by representing the PWM in Flux circuit context.

Webinars

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

Coupled Electro-Magnetic and Acoustic Simulation of an In-Wheel Electric Motor

At Elaphe, the engineers have been facing the NVH challenges from the very beginning. The topology of this electric motor, which on the one hand enables the team to use the otherwise empty space inside the wheel, can on the other hand, result in some new and unexplored NVH challenges. The experience over the years has proven that NVH is a bottleneck in the design cycle of Elaphe's motors and this was the main motivation for a more automated and more user-friendly NVH simulation workflow. Within the NVH, noise radiation was the area Elaphe was most interested in.

Webinars

Design the Future e-Mobility

This presentation was given on April 11, 2019 at ATCx Electromechanical Applications in Troy, MI.

ATC Presentations

Analysis of Static Eccentricity Faults in Double Stator Single Rotor Axial Flux Surface-mounted Permanent Magnet Motors

This presentation was given on April 11, 2019 at ATCx Electromechanical Applications in Troy, MI.

ATC Presentations

Shielding Benchmark: Static Shielding and Eddy Current Shielding

This presentation was given on April 11, 2019 at ATCx Electromechanical Applications in Troy, MI.

ATC Presentations

Flux & Flux Motor: A Preview from the Inside

This presentation was given on April 11, 2019 at ATCx Electromechanical Applications in Troy, MI.

ATC Presentations

Switched Reluctance Motor (SRM) Multiphysics Simulation

This presentation was given on April 11, 2019 at ATCx Electromechanical Applications in Troy, MI.

ATC Presentations

Slotless-Halbach Lightweight Electric Machines and Unconventional Multi Layer Winding

This presentation was given on April 11, 2019 at ATCx Electromechanical Applications in Troy, MI.

ATC Presentations

Using Workflow Automation Tools for the Multi-physics Optimization of Traction Motors

This presentation was given on April 11, 2019 at ATCx Electromechanical Applications in Troy, MI.

ATC Presentations

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

Gulplug

French startup Gulplug, located in Grenoble, France, has set out to revolutionize plug and charging technology used in today's electric and hybrid vehicles. To create new products and to drive innovation in the market, Gulplug is using Altair Flux™ and the Altair startup program. Flux helped Gulplug to model and create an innovative, clean, automatically self-plugging, magnetic based charging solution for electric vehicles.

Customer Stories, Customer Testimonials

Improving E-Motor Acoustics with Seamless Multiphysics Simulation

Discover Altair SimLab's automated workflow for coupled electromagnetic and vibration analysis. SimLab uses Altair Flux for electromagnetic analysis and Altair OptiStruct for vibro-acoustic simulation.

Webinars

Altair HyperWorks Brochure

Altair HyperWorks is the most comprehensive, open architecture CAE simulation platform in the industry, offering the best technologies to design and optimize high performance, weight efficient and innovative products.

Brochures

Magneto-Vibro-Acoustic Efficient Design of PWM-Fed Induction Machines

Induction motors are widely used in the automotive industry. In order to increase the passenger’s comfort, motor designers try to develop new solutions to reduce the noise at its origin, on the electromagnetic side. Damper winding can be a solution to improve emitted vibration and noise. In this presentation, LSEE shows interesting modelling method to evaluate the impact of damper windings on the vibro-acoustic behavior of the motor considering PWM, and compares it with measurements. * Please note this technology is patented / WO 2016207166 A1* An LSEE & Altair presentation at SIA-CTTM Automotive NVH Comfort 2018

Presentations

Using Multiphysics Optimization to Design High Performance Rotating Machines

Light-weight, low cost, compact, high efficiency are some of the many objectives and constraints that have to be considered when designing a rotating machine. To meet these various challenges it is necessary to take into account several physical aspects: - electromagnetic - structural - thermal This presentation shows how Altair HyperStudy can involve several Altair solvers to consider different requirements into a single optimization and will be illustrated through various examples.

Webinars

Considering Temperature Constraints in the Design of Electric Machines

Because of always more compact and high efficiency systems, temperature is a critical constraint in electric machine design. Depending on the design stage, different levels of modeling can be proposed: - 1D for fast pre-design, to - full 3D CFD models for the validation stage. This presentation shows, through a complete example how the Altair platform for innovation helps machine designers to manage temperature distribution and evolution.

Webinars

Fast Assessment and Optimization of the Energy Efficiency of Electric Machines with Altair Flux

In the early stage of the design of an electric machine, it is key to assess its potential in terms of global energy efficiency when submitted to specific duty cycles. This presentation will show how: - FluxMotor is able to extract efficiency maps in a very fast way. - FluxMotor can be coupled to Altair HyperStudy for design exploration and optimization studies, considering the efficiency over duty cycles as an objective function to be maximized.

Webinars

Gulplug Drives Innovation in the Charging Industry with Altair's Startup Program

Xavier Pain, Founder & CEO at Gulplug, discusses how Altair's Startup Program enabled his team create an autonomous magnetic based charging solution for electric vehicles.

Customer Testimonials

Model-Based Development with Altair - Introduction and E-Mobility Use Cases Systems Simulation

Presentation by Andy Dyer, Senior Tech Specialist at Altair.

In this presentation, we'll take a look at a few examples of e-Mobility systems models built with Altair Activate and Compose and integrated with other tools like Flux, for electromagnetic simulation for electrical machines (motor/generators), for the purpose of simulating power electronics and motor thermal behavior. We'll also take a look at integrating system model via third-party software like CarSim via the use of the Functional Mock-up Interface, which opens the door to a multitude of tools for further system integration, including packages like MapleSim and DSHplus in the Altair Partner Alliance.

ATC Presentations, Videos

Multi-scale Co-simulation and Model Integration with CosiMate and Flux

This webinar presents how to co-simulate and integrate models created with different state-of-the-art tools at the system level. Co-simulation is an industry-proven robust way to implement Multiphysics analysis. It replaces advantageously lengthy model translation and iterative analysis.

Webinars

Recent and Future Developments in Flux and FluxMotor

Presentation by Vincent Leconte, Senior Director of Global Business Development - EM Solution at Altair.

ATC Presentations, Videos

Study Based on Flux3D FE Models on the Influence in Induction Motors

Presentation by Virgiliu Fireteanu, Professor at Politehnica University of Bucharest.

Study based on Flux3D FE models of the influence of stator short circuit, broken rotor bar, and rotor eccentricity on EM torque and rotor unbalanced force in induction motors

ATC Presentations, Videos

New MIPSE Solver for Sensor Dimensioning

Presentation by Loic Rondot, Sensor Modeling Expert at Schneider Electric.

The current sensors modeling is a real numerical challenge for electromagnetic modeling software. Physics is well mastered, but the accuracy expected for the crosstalk computation is generally crippling to use a commercial software. Recently Altair has developed, in collaboration with an academic partner (G2Elab), a new solver that uses on integral volume methods. This new solution, Modeling of Interconnected Power Systems (MIPSE), is very relevant for the current sensors modeling for both volume coils and wire coils.

ATC Presentations, Videos

Vortex Bladeless: A New Way to Collect Energy from Wind

Presentation by Jose Viyeira, R&D Project Engineer at Vortex Bladeless.
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Vortex Bladeless is developing a technology that extracts energy from the wind thank to Vortex Shedding and Vortex Induced Vibrations (VIV). Among others, the main fields of investigation we are working on are CFD, FEA and Electromagnetic Interactions. Within our technology, these fields are all connected, so one affects the others. For that, Altair’s suite software is helping us not only to understand the phenomena. It is so important that we consider Altair as a part of the process of maturation of the technology.

ATC Presentations, Videos

Electromagnetic Design and Multiphysics Simulation for the Creation of Innovative Products

This technical session focuses on design in electrical engineering, and especially on low frequency electromagnetic simulation. Presentations can be viewed of the latest advances in the Altair simulation solutions - Flux and FluxMotor. Several companies also illustrate how they use these tools to create innovative products. In particular, it is shown how multiphysics approaches consider the various constraints of electric machine design. It is also demonstrated how optimization techniques can be used at various stages of the process, and how powerful they are to meet the many challenges of electro-mechanical design.

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

ATC Presentations, Videos

Fast and Accurate Design of Electromagnetic Devices with Flux and FluxMotor

Altair Flux is a leading finite element simulation software for electromagnetic modeling. Used for more than 35 years in industry worldwide, and based on the most advanced numerical techniques, Flux has become a reference for the high accuracy it delivers. Altair also recently introduced Altair FluxMotor, a new tool for the pre-design of electric machines. In a very intuitive interface, it allows defining a machine from templates, creating its winding, and characterizing its performance in a few clicks. In this webinar, discover all the new features in the latest versions of Flux and FluxMotor.

Webinars

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