A method for estimating impact location of loose part using HHT

Huawen Zheng; Yanlong Cao; Jiangxin Yang

doi:10.1117/12.819732

31 December 2008 A method for estimating impact location of loose part using HHT

Huawen Zheng, Yanlong Cao, Jiangxin Yang

Proceedings Volume 7130, Fourth International Symposium on Precision Mechanical Measurements; 71304S (2008) https://doi.org/10.1117/12.819732
Event: Fourth International Symposium on Precision Mechanical Measurements, 2008, Anhui, China

Abstract

A method for estimating the impact location of a loose part is described in this paper, which uses Hilbert-Huang Transform (HHT) and dispersion characteristics of bending waves propagated in a plate. The power propagation velocity and arrival time difference of bending waves related to the dispersion characteristics can be obtained through the transformation of impact signals using Hilbert-Huang Transform. The distance from the impact location to the signal measuring point can be estimated using the information on the power propagation velocity and the arrival time difference of two bending waves. The experimental results show that the proposed method estimates the impact location with average relative percentage error in 7.68% compared with the actual impact location.

Citation Download Citation

Huawen Zheng, Yanlong Cao, and Jiangxin Yang "A method for estimating impact location of loose part using HHT", Proc. SPIE 7130, Fourth International Symposium on Precision Mechanical Measurements, 71304S (31 December 2008); https://doi.org/10.1117/12.819732

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