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Proceedings Paper

Detection and location of debris cloud impact damage
Author(s): Kai Zhang; Baojun Pang; ZhiDong Liu; Runqiang Chi
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Paper Abstract

A variety of anomalies and system failure can be caused by micrometeoroid and space debris impact on spacecraft. A system based on acoustic emission technique is considered for monitoring the impact events. Most of recent works focused on point-like source localization. However, the spacecraft may use a single thin plate named "bumper" placed at a short distance ahead of a primary structural system. The impact source would be in the form of debris cloud. In this study, normal hypervelocity impact experiments were used to study the characteristics of signals caused by debris cloud impact. Four ultrasonic transducers were mounted on the target plate for collecting the debris cloud impact signals. In the Fourier transform of the signals, the distinctions caused by different form of debris cloud impact could be seen. The mathematical model to determine the impact location was provided. It was found that the position predicted was near the center of the damaged region caused by debris cloud impact.

Paper Details

Date Published: 14 April 2010
PDF: 7 pages
Proc. SPIE 7522, Fourth International Conference on Experimental Mechanics, 75223Z (14 April 2010); doi: 10.1117/12.851592
Show Author Affiliations
Kai Zhang, Harbin Institute of Technology (China)
Baojun Pang, Harbin Institute of Technology (China)
ZhiDong Liu, Harbin Institute of Technology (China)
Runqiang Chi, Harbin Institute of Technology (China)

Published in SPIE Proceedings Vol. 7522:
Fourth International Conference on Experimental Mechanics
Chenggen Quan; Kemao Qian; Anand Krishna Asundi; Fook Siong Chau, Editor(s)

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