Developments of an Efficient Analytical Scheme for Optimal Composition Designs of Tubular Linear Magnetic-Geared Machines

By adopting the analytical model and magnetic equivalent circuit concepts, a systematic scheme that can be conveniently applied for the optimal component composition designs of an integrated tubular linear magnetic-geared machine (TLM
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) will be provided. The TLM
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system can be either adopted to generate electric powers or to supply large mechanical thrust forces. With its complex double-mover and coaxial magnetic gear structures, the associated system performance based on different component parameters and arrangements can be rationally and efficiently evaluated. Based on thorough flux coupling designs and 3-D finite-element analyses, the adequacies of the proposed analytical scheme for assisting the optimal TLM
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system design at specified physical constraints can be confirmed. A laboratory TLM
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prototype has successfully been developed to operate as a generator for demonstration, and it is confident that its linear actuator counterparts can also be conveniently and reasonably designed based on the same scheme.