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RESEARCH PAPERS: Vibrations in Rotating Machinery

A Vibration Source in Refrigerant Compressors

[+] Author and Article Information
K. Imaichi

Osaka University, Toyonaka, Osaka 560, Japan

N. Ishii

Osaka Electro-Communication University, Neyagawa, Osaka 572, Japan

K. Imasu, S. Muramatsu, M. Fukushima

Matsushita Electric Industrial Co., Ltd., Noji-cho, Kusatsu 525, Japan

J. Vib., Acoust., Stress, and Reliab 106(1), 122-128 (Jan 01, 1984) (7 pages) doi:10.1115/1.3269140 History: Received July 11, 1983; Online November 23, 2009

Abstract

During a study of vibrations of a single-cylinder refrigerant compressor of the reciprocating type, which arise after the electric power of the motor is switched off, it was observed that higher frequency damped vibrations arose distinctly in the compressor frame vibrations. This paper shows that the higher frequency damped vibrations observed were caused by torsional and transverse elastic vibrations of the crankshaft which had a rotor of larger mass at one end of the comparatively long and slender shaft. Moreover, it is confirmed that the crankshaft can be one of the major vibration sources which cause higher frequency vibrations of the compressor in constant operation.

Copyright © 1984 by ASME
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