The Study of Noise for Mathine Based on Acousticintensity Measurement and Operating Modal Analysis

摘要

Storage/retrieval machine(S/R machine) is main equipment in an auto-stereoscopic warehouse. In order to increase the operating speed and decrease the noise, we do noise source identification and operating modal analysis to determine the noise source and distributing on frequency. In this paper, it is described that acoustic intensity of a rail load machine was measured for decreasing the operating noise. To locate exactly the noise sources on the machine, Operational modal measurement and analysis was performed. Comparing the results of analysis the both sets of data measured, the main components of emission noise were determined.