An experimental study on the engine noise source identification by the method of surface vibration measurement technique is carried out in this paper.
通过测量柴油机表面振动速度的方法对其进行了表面噪声源识别的研究。
Identification of engine noise source is a critical technique of controlling engine noise. Traditionally, each of noise sources is separated to test. These tests are complicate by many instruments.
发动机噪声源的识别是控制发动机噪声的一项关键技术，传统的办法是用仪器分别测试噪声源，测试办法复杂，仪器多。
Simulations about reducing noise excited by engine revolution are done by laying secondary source at proper places on the simplified finite element model of a passenger car.
根据所得结论，在简化的客车有限元模型上的适当位置安放次级声源，对因发动机振动激励引起的噪声进行车内有源消声的仿真分析。
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