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High fidelity multidisciplinary design optimisation of an electromagnetic device

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Abstract

The application of multidisciplinary design optimisation is mostly confined to bi-disciplinary systems such as fluid-structure interaction problems. High fidelity models of three disciplines involving electromagnetic-thermal-structural designs are rare. Here, the multidisciplinary optimisation of such a design is presented. The device comprises a C-shaped iron core and a single coil. The problem is decomposed using a monolithic multidisciplinary feasible architecture. The multidisciplinary analyses involve a single three-dimensional finite element mesh for transient non-linear electromagnetic, non-linear-static thermal, and linear-static structural models. During each multidisciplinary iteration the mesh is linearly morphed. A gradient based optimisation algorithm in combination with a multi-start routine is applied to the constrained mass minimisation problem. Multidisciplinary feasibility is ensured by convergence of a single coupling parameter i.e. air-gap deformation. In conclusion, some multidisciplinary optimisation, analyses, and decomposition considerations are discussed.

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Acknowledgments

The author would like to thank the following individuals for their assistance: Phani Adduri of Vanderplaats Research and Development, Didier Zefack, and Yves Thioliere of POWERSYS Solutions. This research was funded by GreenFund which is a Development Bank of Southern Africa initiative. The grant number is RW1/1035.

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Authors and Affiliations

  1. Department of Mechanical and Mechatronic Engineering, University of Stellenbosch, Private Bag X1, Matieland, 7602, South Africa

    J. N. Stander & G. Venter

  2. Department of Electrical and Electronic Engineering, University of Stellenbosch, Private Bag X1, Matieland, 7602, South Africa

    M. J. Kamper

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  1. J. N. Stander
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  2. G. Venter
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  3. M. J. Kamper
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Correspondence to J. N. Stander.

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Research funded by the GreenFund, DBSA

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Stander, J.N., Venter, G. & Kamper, M.J. High fidelity multidisciplinary design optimisation of an electromagnetic device. Struct Multidisc Optim 53, 1113–1127 (2016). https://doi.org/10.1007/s00158-015-1375-0

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  • DOI: https://doi.org/10.1007/s00158-015-1375-0

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