Performance of smart structures

Fu Yi; Shirley J. Dyke

doi:10.1117/12.383130

20 April 2000 Performance of smart structures

Fu Yi, Shirley J. Dyke

Proceedings Volume 3988, Smart Structures and Materials 2000: Smart Systems for Bridges, Structures, and Highways; (2000) https://doi.org/10.1117/12.383130
Event: SPIE's 7th Annual International Symposium on Smart Structures and Materials, 2000, Newport Beach, CA, United States

Abstract

This paper discusses the results of expanded study of series simulations conducted to compare the effectiveness of various control systems for earthquake hazard mitigation. A systematic comparison of the performance of different control systems will be useful for the designer in selecting the most effective control system for a structure. Ideal passive, active and semi-active control systems are employed in this study. For determining the control action, an H₂/LQG control algorithm was selected for the active system and a clipped optimal control algorithm was selected for the semi- active system. In both cases the control algorithm was based on acceleration measurements for determination of the control action. To evaluate and compare the controllers, the structural responses of various 3, 6, and 10-story buildings are examined. An El Centro earthquake and pulse excitation are used as the ground excitations. The mass is held constant while the stiffness of the structure is varied to examine structures with a range of natural frequencies.

Citation Download Citation

Fu Yi and Shirley J. Dyke "Performance of smart structures", Proc. SPIE 3988, Smart Structures and Materials 2000: Smart Systems for Bridges, Structures, and Highways, (20 April 2000); https://doi.org/10.1117/12.383130

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