Damage Identification of Rear Axle Under Experimental Condition from Curvature Mode Change

Paper #:
  • 2010-01-0930

Published:
  • 2010-04-12
Citation:
Peng, X., Zhou, H., Xu, H., and Guo, R., "Damage Identification of Rear Axle Under Experimental Condition from Curvature Mode Change," SAE Technical Paper 2010-01-0930, 2010, https://doi.org/10.4271/2010-01-0930.
Pages:
9
Abstract:
In this paper the approach of using modal parameters to detect and locate damage of automobile rear axle under experimental condition is explained. This method uses the changes in the curvature mode of the structure as the damage identification indicator to detect and locate damage. The curvature mode and the damage identification indicator are explained, the process of the identification is introduced. The method is demonstrated with a FEM (Finite Element Method) analysis on a plate under different damage conditions. And the indicator is improved with a weighting function. Then EMA (Experimental Modal Analysis) is conducted on a damaged and an undamaged rear axle of a vehicle to get the modal parameters for the damage identification indicator which later identifies and locates the damages, thus validating the introduced method.
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