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Proceedings Paper

Operational modal analysis of vehicle system based on SSI under operational conditions
Author(s): Suxia Zhou; Yunye Xie; Jilong Xie; Fang Li
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Paper Abstract

The modal parameters of linear vehicle system are analyzed by the theoretical modal parameter analysis method first, and then SSI based on operational conditions is presented to form the estimation formula of modal parameters of linear vehicle system. At last, the modal parameters of linear vehicle system are identified by SSI after its vibration test under operational conditions, and are simultaneously compared to the results obtained by the theoretical modal parameter analysis method. Comparison results show discrepancies of 0.61~8.32 percent on modal frequencies and 3.86~11.61 percent on modal damping ratios, which implies that SSI based on the operational condition is feasible and effective, and has comparatively higher precision to meet the needs of engineering.

Paper Details

Date Published: 15 April 2010
PDF: 6 pages
Proc. SPIE 7522, Fourth International Conference on Experimental Mechanics, 75225N (15 April 2010); doi: 10.1117/12.851704
Show Author Affiliations
Suxia Zhou, Beijing Jiaotong Univ. (China)
Yunye Xie, Jining Vocational Technology College (China)
Jilong Xie, Beijing Jiaotong Univ. (China)
Fang Li, Jining Vocational Technology College (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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