Existence of Uncoupled Modes in Subsystem Analysis
Publication: Journal of Engineering Mechanics
Volume 116, Issue 4
Abstract
Structural models are considered that are conveniently viewed as a composite of subsystems. Conditions are sought that assure the simultaneous existence of classical uncoupled modes of vibration for the composite system and for each of the subsystems. It is shown that the Rayleigh condition for the composite system is the only situation giving precisely the desired uncoupled modes. More general conditions give approximately uncoupled modes if the system is composed of a massive primary system and a light secondary system.
Get full access to this article
View all available purchase options and get full access to this article.
References
1.
Asfura, A., and Der Kiureghian, A. (1986). “Floor response spectrum method for seismic analysis of multiply supported secondary systems.” Earthquake Engrg. and Struct. Dynamics, 14, 245–265.
2.
Clough, R. W., and Penzien, J. (1975). Dynamics of structures, McGraw‐Hill Book Co., Inc., New York, N.Y.
3.
Craig, R. R., and Bampton, M. C. (1965). “Coupling of substructures for dynamic analysis.” AIAA Journal, 7, 1313–19.
4.
Igusa, T., and Der Kiureghian, A. (1985). “Dynamic response of multiply supported secondary systems.” J. Engrg. Mech. Div., ASCE, 111(1), 20–41.
5.
Kukreti, A. R., and Feng, C. C. (1978). “Dynamic substructuring for alternating systems.” J. Engrg. Mech. Div., ASCE, 104(5), 1113–1129.
6.
Singhal, A., Lutes, L. D., and Spanos, P. (1988). “Iterative seismic analysis of primary‐secondary systems.” NCEER‐88‐0004, Nat. Center for Earthquake Engrg. Res., Buffalo, N.Y.
7.
Spanos, P. D., et al. (1988). “Decoupled dynamic analysis of combined systems by iterative determination of interface accelerations.” Earthquake Engrg. and Struct. Dynamics, 16, 491–500.
Information & Authors
Information
Published In
Copyright
Copyright © 1990 ASCE.
History
Published online: Apr 1, 1990
Published in print: Apr 1990
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.