TECHNICAL NOTES
Apr 1, 1990

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.

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References

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Go to Journal of Engineering Mechanics
Journal of Engineering Mechanics
Volume 116Issue 4April 1990
Pages: 966 - 972

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Published online: Apr 1, 1990
Published in print: Apr 1990

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Authors

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Loren D. Lutes, Fellow, ASCE
Prof. of Civ. Engrg., Texas A&M Univ., College Station, TX 77843‐3136
Ajay Singhal
Struct. Engr., Walter P. Moore and Assoc., Inc., 3131 Eastside, Houston, TX 77098‐1792

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