TY - JOUR
T1 - Baseband methods of component mode synthesis for non-proportionally damped systems
AU - Morgan, Jeffrey A.
AU - Pierre, Christophe
AU - Hulbert, Gregory M.
PY - 2003/5
Y1 - 2003/5
N2 - This paper presents several new baseband methods of component mode synthesis (CMS) for non-proportionally damped systems. In contrast to most existing CMS approaches, these methods are based upon a first-order state-space formulation which engenders complex-valued modal vectors, transformation matrices, and reduced structural matrices. Two new methods are presented. These are baseband versions of 'constraint modes' and 'residual flexibility' methods. The constraint modes method is applicable when existing finite element matrices can be employed for analytical implementation. The residual flexibility method is used within an experimentally, based implementation with test data. The experimentally based methodology produces matrices that are compatible with the analytical matrices; thus, system models comprising both types of matrices can be analysed as a single assembly. Theoretical developments are presented in this paper and conclusions are drawn.
AB - This paper presents several new baseband methods of component mode synthesis (CMS) for non-proportionally damped systems. In contrast to most existing CMS approaches, these methods are based upon a first-order state-space formulation which engenders complex-valued modal vectors, transformation matrices, and reduced structural matrices. Two new methods are presented. These are baseband versions of 'constraint modes' and 'residual flexibility' methods. The constraint modes method is applicable when existing finite element matrices can be employed for analytical implementation. The residual flexibility method is used within an experimentally, based implementation with test data. The experimentally based methodology produces matrices that are compatible with the analytical matrices; thus, system models comprising both types of matrices can be analysed as a single assembly. Theoretical developments are presented in this paper and conclusions are drawn.
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U2 - 10.1006/mssp.2001.1467
DO - 10.1006/mssp.2001.1467
M3 - Article
AN - SCOPUS:0037405459
SN - 0888-3270
VL - 17
SP - 589
EP - 598
JO - Mechanical Systems and Signal Processing
JF - Mechanical Systems and Signal Processing
IS - 3
ER -