Altair Flux™

Electromagnetic, Electric, and Thermal Analysis

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, Videos

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

Altair Flux and FluxMotor - Roadmap

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

Webinar: 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

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

Magnet Weight Minimization of Electric Traction Interior Permanent Magnet Motor Over Multiple Operating Points

This paper describes the process of using Altair tools such as Flux for synchronous permanent magnet motor EM FEA analysis and HyperStudy to minimize the weight of the NdFeB magnets of a typical IPM motor for electric traction application such as the IPM motor of the Toyota Prius 2010.

Technical Papers

Schneider Electric uses Flux to Design IoT Actuators

Schneider Electric is a world leader in electrical distribution equipment. Remy Orban, Mechatronic Engineer at Schneider Electric discusses a low voltage circuit breaker actuator design using Flux

Customer Testimonials, Videos

Electromagnetic Compatibility

To meet time-to-market requirements and comply with product specifications, the virtual prototyping of EMC phenomena is widely performed in the early design stages. Altair provides complete simulation solutions to address these challenges for low and middle frequencies.

Datasheets

Power Cables and Busbars

Power cables, power bars and busbars are used to distribute and transmit electrical energy through the grid. Their design must comply with several electromagnetic and thermal constraints to guarantee high performance, safety and efficiency. Altair offers the innovative Flux software to answer these challenges.

Datasheets

Electric Field Simulation with Flux

Electric Field Simulation Application Sheet

Datasheets

Altair Flux Datasheet

Capitalizing on thirty-five years of innovation in the global context of design optimization and time-to-market reduction, Flux finite element software provides solutions to low-frequency electromagnetic and thermal simulation problems. Flux includes an open and user-friendly interface that is easily coupled with other Altair software to address multiphysics problems for a variety of systems in 2D, 3D and Skew modeling situations.

Datasheets

Flux Webinar : Designing Efficient and Sustainable Energy Generation Equipment Thanks to Simulation

From conventional to renewable energy and large-scale power plants to in-house systems, energy generation has to be efficient and sustainable to supply the grid and support different needs.

Webinars

Flux Webinar : Designing Reliable MV & HV Power Grid Equipment

Aging transmission infrastructure has to be modernized to deliver electricity more reliably and efficiently. Asset owners of the ecosystem such as manufacturers, service providers, and government offices have to consider the multiple challenges around energy transmission.

Webinars

Flux Webinar : Safe and Flexible Distribution : Smart Grid Equipment Design

From power plants that regulate their power output, to the coordination of centralized and decentralized energy supplies and fluctuations in power needs - Smart Grid is gaining importance and is expected to provide on-demand management.

Webinars

Flux Webinar: Accelerate your Design Process with Flux - Dealing with Complex 3D CAD Models

Flux is now fully part of HyperWorks and thanks to our flexible HyperWorks Units, users are now able to access even more tools that will help you to save time in your designs and enable powerful simulations. Flux embeds its own pre-preprocessing tools but designers sometimes need to deal with complex 3D geometries generated by their CAD team.

Webinars

Design of Interior Permanent Magnet Machines for Traction Application using Flux Modules

Altair’s low-frequency electromagnetic and thermal software, Flux™, offers a complete range of modeling tools able to take into account model specifications and streamline the design process. Capitalizing on 36 years of innovation in the global context of design optimization and time-to-market reduction, our solution suite is built to assist you. The ATCx Flux™ seminar is an excellent opportunity to discover the latest developments in this best-in-class software. Industry experts will present the latest capabilities and enhancements of Flux™ 2018 - providing a comprehensive view of methodology used for the analysis, design and optimization of modern applications. Presentation recorded in Troy, MI during ATCx Flux 2018 on March 14, 2018.

ATC Presentations

Design of an Axial Flux Machine: Simulation and Challenges

Altair’s low-frequency electromagnetic and thermal software, Flux™, offers a complete range of modeling tools able to take into account model specifications and streamline the design process. Capitalizing on 36 years of innovation in the global context of design optimization and time-to-market reduction, our solution suite is built to assist you. The ATCx Flux™ seminar is an excellent opportunity to discover the latest developments in this best-in-class software. Industry experts will present the latest capabilities and enhancements of Flux™ 2018 - providing a comprehensive view of methodology used for the analysis, design and optimization of modern applications. Presentation recorded in Troy, MI during ATCx Flux 2018 on March 14, 2018.

ATC Presentations

Modeling the Induction Heating of Carbon Fiber Reinforced Thermoplastic

Altair’s low-frequency electromagnetic and thermal software, Flux™, offers a complete range of modeling tools able to take into account model specifications and streamline the design process. Capitalizing on 36 years of innovation in the global context of design optimization and time-to-market reduction, our solution suite is built to assist you. The ATCx Flux™ seminar is an excellent opportunity to discover the latest developments in this best-in-class software. Industry experts will present the latest capabilities and enhancements of Flux™ 2018 - providing a comprehensive view of methodology used for the analysis, design and optimization of modern applications. Presentation recorded in Troy, MI during ATCx Flux 2018 on March 14, 2018.

ATC Presentations, Videos

Coupling Flux with OptiStruct for Acoustic Analysis

Altair’s low-frequency electromagnetic and thermal software, Flux™, offers a complete range of modeling tools able to take into account model specifications and streamline the design process. Capitalizing on 36 years of innovation in the global context of design optimization and time-to-market reduction, our solution suite is built to assist you. The ATCx Flux™ seminar is an excellent opportunity to discover the latest developments in this best-in-class software. Industry experts will present the latest capabilities and enhancements of Flux™ 2018 - providing a comprehensive view of methodology used for the analysis, design and optimization of modern applications. Presentation recorded in Troy, MI during ATCx Flux 2018 on March 14, 2018.

ATC Presentations

Efficient Multidisciplinary Modeling of a Washing Machine Motor Duty Cycle

This presentation will take you step-by-step through the electromagnetic and thermal analysis of a washing machine during a full wash cycle. By utilizing Flux and Activate, the designer was able to evaluate the thermal image of the motor, faster at a limited cost and in a limited time. You will hear from the entire team responsible for the success of this project. From project start: outlining the goal of the project and establishing the workflow, to the evaluation of the motor performances, the computation of the losses for the different parts of the cycle, to project end: completing the thermal computation. You will observe the Activate 1D thermal simulation and the flow of data from Flux to Activate. You will get a rare 360-degree view of what was executed as actual measurements are compared to the results obtained using our elegant software solutions. Presentation recorded in Troy, MI during ATCx Flux 2018 on March 14, 2018.

ATC Presentations, Videos

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 the electric machine, this aspect has to be taken into account from the start since it depends on the harmonic content of the currents that feed the machine, on the shapes of the rotor and stator, and on the interaction of the electric frequencies with the natural mechanical modes of the structure. To simulate this phenomenon, a coupling between electromagnetic calculations and vibration analysis has to be set-up. Some optimization procedure can also be added in order to reduce the noise. In what follows, it is shown how Altair HyperWorks suite; specifically FluxTM, OptiStruct®, HyperMesh® and HyperStudy® products have been successfully used to perform a multi-physics optimization for noise reduction in a fuel pump permanent magnet motor.

Technical Papers

Webinar: Structural and Thermal Coupling with Electromagnetic Systems

Electromagnetic phenomenon may induce undesired effects such as heat or vibrations. To predict and correct them by simulation, it is necessary to couple all phenomenon. Altair HyperWorks software suite is a perfect solution for this and in this webinar, two use cases will be demonstrated, where Flux is coupled with OptiStruct and AcuSolve.

Webinars

Modelling Insulating Parts in MV HV Equipment with Flux

Modelling Insulating Parts in MV/HV Equipment enables to - To predict and avoid dielectric breakdown - To compute and minimize electrical stress HVDC lines Lightning strikes - To decrease the oversizing

Presentations

Altair Aerospace: Design and Optimization of a Radome

This 25-minute webinar covers the material characterization and optimization of a radar dome (radome) build out of carbon and fiberglass. Also to be discussed is the design and optimization of a radar antenna and the simulation of a radar integrated behind the radome and wing structure.

Webinars

Altair Aerospace: Fail-safe and Multiphysics Optimization

This webinar covers the complete fail-safe optimization process of a wing rib starting with the search of a new and more efficient design to the calculation of optimum dimensions. The replacement of a metallic fitting by an organic 3D printed version, while increasing performances and decreasing mass reduction is discussed as well. HyperStudy has also been used to perform multi-disciplinary studies throughout the process.

Webinars

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(hundreds of kHz).

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 sometimes useful to add a so-called remanent airgap. This paper explains what we have incorporated into Flux to model this effect due to hysteresis.

Articles, Technical Papers

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