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Meeting the challenge of a 50000-hour-life-time requirement (1971)

Vest, C. E. ; Studer, P. A.

In: CASI

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Publication Date: 2005-11-30

Description: Space mission requirements for the 70's have established a 50,000-hour-lifetime challenge for the mechanisms designer. This challenge may be met by two approaches: (1) development of new materials for wear-prone elements, and (2) design innovation of new electromechanical devices that do not include mechanical wear-prone components. Present state-of-the-art materials require restricted operation regarding load, speed, and power for gears, bearings, and brush-slipring components. These restrictions are discussed, and methods of improvement are suggested. The design-innovations approach is discussed and is illustrated by the design of an experimental magnetically suspended motor.

Keywords: MACHINE ELEMENTS AND PROCESSES

Type: 5th Aerospace Mech. Symp.; p 159-164

Format: text

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