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Proceedings Paper

A method based on acoustic emission for locating debris cloud impact
Author(s): Zhidong Liu; Baojun Pang
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Paper Abstract

Due to the threat of impact to spacecraft from space debris and meteoroid, space debris and meteoroid shields have been raised and used in many spacecrafts. In order to conduct an assessment of spacecraft module-wall damage impacted by debris cloud created by space debris and meteoroid high-velocity impact on the shields, it's necessary to develop a location method for the debris cloud impact. The method based on virtual wave front for acoustic emission source location has been investigated and extended to locate the impact position of the debris cloud. Debris cloud hypervelocity impact experiments were conducted by using a two-stage light gas gun, the experimental results indicate that: The signals induced by debris cloud contain a0, s0, s2 mode wave, the virtual wave front location method can be extended to locate the impact position of the debris cloud effectively, the AE signals contain more high frequency components than AE signals created by single projectile impact event. The results provide a reference for the development of the sensor systems to detect impacts on spacecraft.

Paper Details

Date Published: 14 April 2010
PDF: 6 pages
Proc. SPIE 7522, Fourth International Conference on Experimental Mechanics, 75220T (14 April 2010); doi: 10.1117/12.851524
Show Author Affiliations
Zhidong Liu, Harbin Institute of Technology (China)
Baojun Pang, 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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