某493柴油机的噪声优化

Noise optimization of the 493 diesel engine

随着柴油机向高速、大功率及高效率方向发展,其噪音、振动问题将更加突出,并直接关系到发动机的使用寿命、工作效率及环境污染等问题。目前国内外已经颁布了关于内燃机噪声的限制法规,因此降低发动机的噪声振动是当今内燃机领域的重要课题;文章以某493柴油机的噪声优化为例,着重分析了噪声声源的产生和优化控制方法。

When the development of diesel engine moves toward high speed、big power and high efficiency,its noise and vibration problems become more and more prominant and have direct adverse impact on the life-span of the engine,work efficiency and environment pollution.Now the limitation legislation of the engine has been enacted at home and abroad,so decreasing the noise and vibration of the engine becomes the primary issue in the field of the engine at present.The paper takes the 493 diesel engine as an example for...