Design Study of an Alernating-Current Electric Wheel.
Final rept. Jul 70-Apr 71,
ALLIS-CHALMERS CORP MILWAUKEE WIS ADVANCED TECHNOLOGY CENTER
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The purposes of this study were to determine the optimum alternating-current electric wheel suitable for military vehicles and to design it. The electric wheel was to have a nominal rating of 100 hp and would be used on both trucks and construction equipment vehicles. During the first part of the study, many electric-wheel concepts were considered synchronous vs. induction motors, high-speed motors vs. low-speed motors, and gear shifts vs. fixed-ratio speed reducers. The most promising concept was selected, and its components were optimized. The optimum electric wheel was then designed in sufficient detail to illustrate the adequacy of the design and to permit the completion of design details and electric wheel manufacture at future date. The study resulted in an electric wheel consisting of a homopolar, inductor-type, sychronous motor driving the wheel through a two-stage, fixed ratio, planetary speed reducer. The electric-wheel assembly weighs approximately 2500 lb, and it fits inside the rim of a 26.5x25 tire. The design is within current state of the art, and the electric wheel can be built by conventional manufacturing procedures. Author
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