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液压泵把输入的机械能转换成输出的流体动力能。噪声是这种转换过程中的副产品,它以几种不同方式在回路周围传输,直到以声的方式辐射掉为止。声能的传播机构大致分三种: 1.流体产生的噪声它是由脉动流体、紊流、气穴现象和流体纵向的振荡使流体压力起伏而产生的。 2.构件产生的噪声这种噪声的传播与系统结构部件的振动有关。构件可以由横向振动幅射声能或者由纵向振动传播机械声能。
The hydraulic pump converts the input mechanical energy into output hydrodynamic energy. Noise is a by-product of this conversion process and is transmitted around the loop in several different ways until it is radiated by sound. Acoustic transmission mechanism can be roughly divided into three types: 1. The noise generated by the fluid It is pulsating fluid, turbulence, cavitation and fluid longitudinal oscillations caused by fluid pressure fluctuations. 2 components of the noise generated by the propagation of noise and system components related to the vibration. The members may radiate mechanical acoustic energy from transverse vibro-acoustic energy or from longitudinal vibrations.