Power Flow and Energy in Primary‐Secondary Systems
Publication: Journal of Engineering Mechanics
Volume 118, Issue 5
Abstract
In this technical note, power flow between two oscillators with spring and damping (nonconservative) couplings is introduced, and its relationship with energies stored in the two oscillators is established. It is shown analytically as well as through numerical examples that power flow and energies are appropriate response variables of a primary-secondary (PS) system, and that they both reflect the tuning characteristics of system and provide information on optimum design of the S-system.
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References
1.
Chen, G., and Soong, T. T. (1991). “Power flow and energy balance between non‐conservatively coupled oscillators.” J. Vibration and Acoustics. 113(4), 448–454.
2.
Crandall, S. H., and Mark, W. D. (1963). Random vibration in mechanical systems. Academic Press, New York, N.Y.
3.
Fahy, F. J., and Yao, D. Y., (1987). “Power flow between nonconservatively coupled oscillators.” J. Sound and Vibration, 112(1), 1–11.
4.
Lai, M. L., and Soong, T. T. (1990). “Statistical energy analysis of primary‐secondary structural systems.” J. Engrg. Mech., ASCE, 116(11), 2400–2413.
5.
Lai, M. L., and Soong, T. T. (1991). “Seismic design considerations for secondary structural systems.” J. Struct. Engrg., ASCE, 117(2), 459–472.
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Copyright © 1992 ASCE.
History
Published online: May 1, 1992
Published in print: May 1992
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