Cobham Technical Services Debuts Opera v15 Electromagnetics Simulator

Cobham Technical Services rolled out version 15 of their Opera electromagnetics simulator for design engineers. Opera v15 includes three-dimensional mechanical stress analysis, which extends the tool’s multiphysics capability to provide a single-step solution for complex design problems. Opera version 15 also supports the rapid creation of models of coils. It does this by providing a dynamic pictorial representation of the model under construction, to guide the engineer as design data is entered.

The latest version of Opera is a complete design-simulate-analyze-optimize toolchain for electromagnetic applications. It is available in a number of variants that include finite element analysis (FEA) for static and time-varying electromagnetic fields, and application-specific solvers for rotating electrical machines, superconducting magnets, charged particle beam devices, and magnetization/demagnetization processes. In addition, Opera’s electromagnetic models may be coupled with third-party system simulation tools available within Simulink.

Opera version 15′s new three dimensional stress analysis module solves for deformations within the elastic limit of the materials, and may be coupled with the electromagnetic solvers to provide a single-step solution to virtual prototyping. In addition to stress and strain produced by the application of mechanical loads and by electromagnetically induced forces, Opera’s thermal analysis module may be used to co-simulate thermal expansion. The effects of gravity or rotationally induced forces can also be incorporated in design simulations.

Opera v15 simplifies and speeds the design process. It supports the rapid creation of models of coils, by providing a dynamic pictorial representation of the model under construction, to guide the user as design data is entered. This extends Opera’s existing user-friendly approach to creating models of coils (and other common structures), which enables designers to select common forms of construction from a library, and then enter the design data using dialog boxes.

To aid the final optimization of a design, Opera can be supplied with an advanced auto-optimization tool that has been designed specifically to work with its finite element methods. This tool is able to work out the best solution for one or multiple goals — even when they compete with each other.

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