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The End Effect in Short Secondary Linear Induction Motors
Kirtley, Prof. James L. Jr. and Lcdr Andrew P. Johnson
Kirtley, Prof. James L. Jr. and Lcdr Andrew P. Johnson
Abstract
One of the reasons linear motors, a technology nearly a century old, have not been adopted for a large number of linear motion applications is that they have historically had poor efficiencies. This is due to the open-ended geometry of a linear motor, and has restricted the progress of linear motor development [1], [2], [3], [4]. The end effect is a direct consequence of this open-ended geometry. This paper will address the issue of whether or not the end effect phenomenon of a short secondary Linear Induction Motor (LIM) could be responsible for any reduction in average thrust and consequently, a reduction in motor efficiency.
