Transient Stress Produced in Internal Suspension Springs of Hermetic Refrigeration Compressor During Start and Stop Operations
نویسندگان
چکیده
This paper presents the theoretical and experimental investigations on the transient stress of the suspension spring in a reciprocating hermetic refrigeration compressor. The torques acting to the compressor body of a multi-cylinder compressor and the transient vibration of the compressor body are analyzed over a wide range of start and stop operations. The dynamic stresses of the suspension springs are numerically calculated in connection with the transient motion of the compressor body. At the same time, the dynamic stress measurements are carried out on three suspension springs of a five-cylinder compressor under several operating conditions. As a result, it is confirmed that the theoretical results are generally in good agreement with·the experimental results. The transient vibration of the compressor body during start and stop operations are revealed. The effects of the operating conditions and the frequency of power source on the dynamic stress of the suspension spring are also clarified.
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