对机器噪声的控制已日益引起人们的重视。目前,噪声限定值常常被规定为重型机械的技术指标之一。本文所阐述的是离心泵和水泵噪声特性的测量与计算。一、测量测量是在经济负载的运行状态下进行的。通常需要测定全频段和倍频带 A 声功率级和 A 声压级,若想对机泵噪声有更详细的了解,还需测量1/3倍频带噪声谱。测量可依照 DIN45635第1、24部分所规定的方法 The control of machine noise has drawn increasing attention. Currently, noise limits are often specified as one of the technical specifications for heavy machinery. This article describes the centrifugal pump and pump noise characteristics of the measurement and calculation. First, the measurement measurement is carried out under the operating conditions of the economic load. Often it is necessary to determine the sound power levels A and A at all bands and octaves, and a 1/3 octave band noise spectrum is also needed to get a more detailed picture of the pump noise. The measurement may be according to DIN45635 part 1, part 2 of the method