论文部分内容阅读
本文讨论振动表面所产生的噪声的一般估算方法问题,它适用于柴油机及其零部件;叙述应用表面振动法测量和预测发动机噪声平衡并说明发动机本体振动随发动机类型和速度变化的情况;给出在发动机表面和部件上测得的一些辐射比值;最后介绍应用多普勒测速仪测量柴油机表面振动的方法。
In this paper, we discuss the general method of estimating the noise produced by vibrating surfaces. This method is suitable for diesel engines and their components. It describes the application of surface vibration to measure and predict the engine noise balance and describes how the engine body vibration varies with the type and speed of the engine. Some of the radiation ratio measured on the engine surface and components; Finally, the application of Doppler velocimeter to measure the surface vibration of diesel engine.