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Title: Dynamic stiffness and response analysis
Author(s): Leung, Andrew Yee Tak 
Issue Date: 1987
Publisher: Taylor & Francis
Journal: Dynamics and Stability of Systems 
Volume: 2
Issue: 2
Start page: 125
End page: 137
The dynamic stiffness method enables one to model an infinite number of natural modes by means of a finite number of degrees of freedom. The method has been extended to frame structures with uniform or non-uniform, straight or curved, damped or undamped beam members. An orthonormal condition is suggested here for the natural modes resulting from the dynamic stiffness method; modal analysis in the classical sense is then made possible. Modes corresponding to repeated natural frequencies are discussed in detail. An expansion theorem for expanding from a finite number of degrees of freedom by means of an infinite number of modes is validated by means of the frequency-dependent shape functions. Distributed modal participation factors are introduced for distributed excitations.
DOI: 10.1080/02681118708806032
CIHE Affiliated Publication: No
Appears in Collections:CIS Publication

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