Propagation Mechanism Analysis on the Acoustic Emission Signal in RV Reducer and Its Experimental Research
AN Haibo1,2,3, LIANG Wei1,2,4, ZHANG Yinlong1,2,4,5
1. State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016, China; 2. Key Laboratory of Networked Control Systems, Chinese Academy of Sciences, Shenyang 110016, China; 3. University of Chinese Academy of Sciences, Beijing 100049, China; 4. Institutes for Robotics and Intelligent Manufacturing, Chinese Academy of Sciences, Shenyang 110169, China; 5. Shenyang Institute of Automation, Guangzhou, Chinese Academy of Sciences, Guangzhou 511548, China
Abstract：At present, there isn't a quantitative analysis on acoustic emission propagation mechanism of RV (rotate vector) reducer. For this problem, this paper seeks to analyze and investigate the propagation mechanism of acoustic emission signals in RV reducer, and monitors and evaluates the reducer failures accurately, such as the reducer wear. Firstly, the propagation model of acoustic emission signal in RV reducer is built based on its kinematic mechanism. Then the wavelet transform analysis is used to obtain the time-frequency component features of acoustic emission signals at different frequency bands, and the trend evolution model of acoustic emission signals is derived. In the accelerated degradation tests of RV reducer, the evolution trends of acoustic emission signals in 4 different wear states are obtained, which proves the validity of the acoustic emission signal propagation model.
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