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Proceedings Paper

A method for estimating impact location of loose part using HHT
Author(s): Huawen Zheng; Yanlong Cao; Jiangxin Yang
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Paper 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.

Paper Details

Date Published: 31 December 2008
PDF: 6 pages
Proc. SPIE 7130, Fourth International Symposium on Precision Mechanical Measurements, 71304S (31 December 2008); doi: 10.1117/12.819732
Show Author Affiliations
Huawen Zheng, Zhejiang Univ. (China)
Yanlong Cao, Zhejiang Univ. (China)
Jiangxin Yang, Zhejiang Univ. (China)

Published in SPIE Proceedings Vol. 7130:
Fourth International Symposium on Precision Mechanical Measurements
Yetai Fei; Kuang-Chao Fan; Rongsheng Lu, Editor(s)

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