Structure optimization for magnetic equipment of permanent magnet retarder

Abstract

The main purpose of this research is to perform a magnetic analysis on the magnetic equipment of permanent magnet retarder (PMR) and optimize the structure of magnetic equipment with the commercial FEM software ANSYS and its design optimization module. The FEM model is built as an axisymmetric model according to the characteristics of the structure of magnetic equipment. Using this model, the magnetic field distribution and magnetic force are calculated by ANSYS. The mathematical model of structure optimization is also built. The design variables are structural parameters including the dimensions of permanent magnets and magnetic yoke, and the objective function is the magnetic force. The unconstrained optimization model takes the maximum value of magnetic force as the objective. A first-order optimization method is used to determine the optimum design of this problem. The optimization process works entirely with the ANSYS parametric design language (APDL). The design tools are used to understand design space and the behavior of the dependent variables. It is shown that designing a structure with the ANSYS optimization module and its design tools is an effective means to improve the structure.

Keywords

optimization / ANSYS / permanent magnet retarder / numerical simulation

References

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Acknowledgements

This work was supported by the National Natural Science Foundation of China (Grant No. 10872012), Beijing Natural Science Foundation (3093019), Foundation of National Key Laboratory for Structural Analysis of Industrial Equipment in Dalian University of Technology (GZ0819) and Beijing Major Scientific and Technological Achievements Project (D090004048209001).

RIGHTS & PERMISSIONS

2014 Higher Education Press and Springer-Verlag Berlin Heidelberg