期刊
NEW MATERIALS AND PROCESSES, PTS 1-3
卷 476-478, 期 -, 页码 2292-2295出版社
TRANS TECH PUBLICATIONS LTD
DOI: 10.4028/www.scientific.net/AMR.476-478.2292
关键词
Theory study; Moving force identification; Pretreatment conjugate gradient method; Pre-treatment matrix
Three identification methods, the time domain method (TDM), the conjugate gradient method (CGM)and the pre-treatment conjugate gradient method (PCGM) are employed for moving force identification. Related research shows that the PCGM have higher identification accuracy and robust noise immunity as well as producing an acceptable solution to ill-posed cases to some extent when they are used to identify the moving force. However, the pre-treatment matrix is very important to the PCGM because it affects the identification accuracy and robust noise immunity as well as ill-posed cases to some extent. The theory study results are practical significant to selection properly pre-treatment matrix.
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