TEAM 24 – Nonlinear time transient rotational test rig

The purpose of this Application Note is to present the setup and analysis of a Finite Element model that shows the effects of induced eddy currents using the Opera-3d suite. Problem 24 is an electromagnetic benchmark proposed by the International Compumag Society and is a part of the Testing Electromagnetic Analysis Methods (T.E.A.M) [1] benchmarks, which cover a wide range of electromagnetic devices and phenomena.

The Finite Element Software suite Opera-3d offers the perfect tools for modelling transient phenomena in electromagnetic systems and the induced effects that such types of application cause. The advanced time-stepping controls and the use of hexahedral elements in the regions where eddy currents are induced are the key to the accurate simulation of the complex fields generated in this benchmark.

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Linear Motion Analysis of a Tubular Switched Reluctance Motor

This application note presents the modelling and analysis of an axisymmetric linear motor using Opera-2D. The chosen design is a four-phase tubular Switched Reluctance Motor (SRM), designed and characterized in [1].

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Research programme targets next-generation electric motors for luxury automobiles

Next-generation electric motors for low carbon emission vehicles are the target of a new collaborative research programme to be led by Cobham Technical Services. The project, ‘Rapid Design and Development of a Switched Reluctance Traction Motor’, will also involve partners Jaguar Land-Rover and engineering consultancy Ricardo UK, and is co-funded by the Technology Strategy Board.

As part of its work in the project, Cobham will develop multi-physics software and capture the other partners’ methodology in order to design, simulate and analyse the performance of high efficiency, lightweight electric traction motors that eliminate the use of expensive magnetic materials. Using these new software tools JLR and Ricardo will design and manufacture a prototype switched reluctance motor that addresses the requirements of luxury hybrid vehicles.
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Webinar: Multiphysics Simulation in Opera

Cobham Technical Services – Vector Fields Software and its product Opera have been at the forefront of finite element electromagnetic analysis for more than twenty-five years.

Opera is a general-purpose finite element software suite for the design and optimization of electromagnetic devices in two or three space dimensions. The software has been in continuous development since 1984, and its accuracy and capabilities for multiphysics analysis has made it a firm favourite in both scientific and industrial communities. The ability to couple electromagnetic analysis to built-in thermal and stress solutions, along with drive circuits, mechanical drives and system representations allows in-depth analysis. Remove assumptions and bottlenecks from your design process and deliver right-first-time products.

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Webinar: Introduction to Rotating Electrical Machine Design using Opera

Webinar: Introduction to Rotating Electrical Machine Design using Opera

Today’s designers of rotating electrical machines are being pressured to deliver more efficient, robust and innovative motors and generators in ever-shortening timescales. In this webinar Cobham Technical Services – Vector Fields Software will show how the Opera Suite can be used to deliver the accuracy of Finite Element Analysis (FEA) with the ease-of-use of analytical design packages.

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3D support optimises power of innovative motor and generator electromagnetic design tool

Cobham Technical Services is launching a 3D version of its rapid electromagnetic design tool for rotating electrical machines – the Advanced Machines Environment. The new software combines the extreme accuracy of finite-element analysis (FEA) simulation with a design entry system that creates full 3D models of electric motors or generators within minutes.

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Innovative electromagnetic design tool for motors and generators is extended with new ready-to-use models and hysteresis solver

provides ultra-fast design entry for powerful FEA electromagnetic simulation

At CWIEME, Cobham Technical Services is releasing a new version of its Vector Fields Software tool for designing rotating electrical machinery. The electromagnetic simulation software combines the accuracy of virtual prototyping using finite-element analysis with a rapid front-end design tool that allows users to create models of motors and generators in minutes — allowing users to achieve radical new levels of development productivity.

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Electromagnetic simulation advance helps electrical machinery designers to achieve ultimate efficiency

Vector Fields, a part of Cobham plc, has extended the accuracy of its Opera electromagnetic simulator for electrical machinery applications with a new finite-element hysteresis solver for soft magnetic materials. Believed to be unique, the new Hysteresis Solver provides designers of motors, generators and other electrical machinery with an accurate means of accounting for losses and predicting performance changes due to hysteresis effects in the specialty electrical steels that are increasingly being used to enhance machine efficiency.

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LDIA-2003

Use of Advanced Scripting Language in the Modelling of Dynamic Systems

Abstract – This paper describes how state-of-the-art Finite Element Analysis (FEA) programs can be used to characterise the dynamic performance of linear electrical machines and actuators. Special emphasis is placed on the use of an advanced scripting language for the characterisation of the mechanical load coupled to the drive, as well as the electronic system driving the device. Aspects of modelling of a reciprocating linear actuator and a linear 3-phase switched reluctance machine are discussed.

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