Methods of Gear Damage Assessment Based on Modal Parameter Identification

Abstract:

With the evolution and degradation of mechanical fault, changes of the structural inherent characteristics will directly affect the overall response of system. Spur gear, which worked as the research object, is to be explored on the changes of modal parameters under different damage state. Optimum driving-point mobility and modal parameter identification is achieved by comprehensive utilization of experimental modal analysis and finite element analysis. is used to determine the experiment results is whether accurate or not. Then comparing with the differences of modal parameters, the preliminary judgment of gear damage can be made. According to the experimental data of different gears, theis taken to complete the correlation analysis and to judge the degree of the damage. The results shows that provide an effective basis for the identification of vibration mechanism and vibration characteristic of fault gear.

• Periodical: Advanced Materials Research (Volume 819)
• Pages: 38-42
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.819.38
• Online since: September 2013
• Authors: Jin Bao Ma, Jian Yu Zhang, Xin Bo Liu
• Keywords: COMAC, Correlation Analysis, Fault Diagnosis, Modal Parameter Identification

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