【摘要】 本文对YZ530剁锉机的噪声特性进行了分析,利用三种不同的方法识别出了该机的主要噪声源.从简单、直接的近场测量入手,到分部运行的计算和由CF920双通道FFT分析仪所做的相干分析,对各噪声源进行了定量分析和计算.三种方法相辅相成,取得了令人满意的一致结果,对于该机的降噪具有很大的指导意义.更多还原

【Abstract】 The noise characteristics is discussed in the pxeaent The noise source identification of YZ-530 file cutting machine were carried out by three methods, i. e. the near field measurement, the calculation for the selected operation and the coherence analysis using CF920 double channel FFT analyzer. These throe methods supplement each other, so that the final results are satisfactory and with instructive significance in depressing the noise level of that machine.更多还原