On vibrations of a system with an eigenfrequency identical to that of one of its subsystems


          

刊名：Journal of Vibration and Acoustics; Transactions of the ASME.
作者：A. V. Pesterev
L. A. Bergman
刊号：780B0015
ISSN：0739-3717
出版年：1995
年卷期：1995, vol.117, no.4
页码：482-487
总页数：6
语种：eng
文摘：The free vibrations of a complex system with a natural frequency identical to that of one of its subsystems is discussed. Such eigenvibrations need special consideration in many modal synthesis methods as the characteristic matrix (equation) does not exist. Particular emphasis has been placed on the case where a resonating subsystem is subjected to forces from other subsystems, which has not received sufficient attention in the literature on substructure synthesis methods. Examples of such eigenvibrations for two simple systems are given. A general equation for system eigenfunctions corresponding to eigenfrequencies of the isolated subsystems is presented and discussed.



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