Tuned Mass Damper Design for Optimally Minimizing Fatigue Damage
Publication: Journal of Engineering Mechanics
Volume 128, Issue 6
Abstract
Traditionally the usage of a tuned mass damper (TMD) is to improve the survivability of the primary structure under an extraordinary loading environment while the design loading condition is often described by a harmonic function, or sometimes by a stationary random process that can be fully characterized by a power spectral density (PSD) function. In contrast, this paper considers the environmental loading to be a long-term nonstationary stochastic process characterized by a probabilistic PSD function. One engineering motivation to design a TMD under a long-term random loading condition is for prolonging the fatigue life of the primary structure. The primary contribution of this study is to provide the theoretical framework for designing a TMD that can optimally minimize structural fatigue damage.
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References
Chakrabarti, S. K. (1987). Hydrodynamics of offshore structures, Springer, Berlin.
Hu, S. J.(1991). “Probabilistic wave spectrum and fatigue estimation.” Appl. Ocean. Res. , 13(2), 93–99.
Lin, Y. K. (1976). Probabilistic theory of structural dynamics, Krieger, New York.
Rana, R., and Soong, T. T.(1998). “Parametric study and simplified design of tuned mass dampers.” Eng. Struct., 20(3), 193–204.
Stengel, R. F. (1986). Stochastic optimal control, Wiley, New York.
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Copyright © 2002 American Society of Civil Engineers.
History
Received: Jun 8, 2000
Accepted: Nov 19, 2001
Published online: May 15, 2002
Published in print: Jun 2002
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