826 シリンダブロック形状変更による小型ディーゼルエンジンの振動・騒音の低減に関する研究(GS-10 振動一般(1))

概要

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Recently, quieter and lightweight diesel engine has been strongly requested. Generally speaking, noise and vibration reduction leads the engine weight increase. In order to meet these contrary requirements, the way of reduction in noise and vibration, which engine weight hardly increase is necessary. Investigating structural dynamics of the target engine is very important for engine noise and vibration. Thus, the purpose of this paper is to reduce engine noise and vibration, considering structural dynamics of the target engine. Result of investigating structural dynamics of the target engine, we found that vibration caused by bulkhead in cylinderblock gave a much influence on the noise and vibration. We could reduce the engine noise and vibration by attaching a stiffening plate to the bottom area of the cylinderblock.
2000-03-16