3kW級スターリングエンジンの騒音・振動特性

概要

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In recent years a wide variety of papers on the Stirling engine and its unique properties have been published. However, the available knowledge on noise and vibration characteristics of the Stirling engines is very limited. This paper presents experimental results which are useful in modifications for the engine parts influencing the noise and vibration characteristics of the reciprocating kinematic Stirling engines. In order to clarify the noise and vibration sources of a 3 kW class Stirling engine, the modal analysis for the engine parts and the measurement of sound intensity were examined. As a result, it became clear that the modifications for the combustion system and the driving system, particularly with respect to the crankshaft, are available for decrement of the engine noise and vibration. Through use of the proposed modifications, the 1987 engine noise was greatly decreased, and the 59 dB(A) noise level was measured under a normal driving condition.
一般社団法人日本機械学会の論文
1990-07-25