Hybrid Control of Seismic Structures with Optimal Placement of Control Devices
Publication: Journal of Aerospace Engineering
Volume 11, Issue 2
Abstract
A theoretical study is carried out for optimal controller placement and effectiveness of a hybrid seismic response control system comprising a viscous fluid damper and a servovalve-controlled hydraulic actuator. A stochastic seismic response of controlled structures is first investigated with nonorthogonal damping and stiffness; then a statistical method for optimal placement of control devices on seismic-resistant structures is developed. With such placement, a hybrid system can achieve greater performance in that much less control force is required to reduce structural seismic response to a given level. This study also shows the hybrid system is superior to both active and passive control systems in control capacity. Numerical simulation for the seismic response of a building structure is presented to demonstrate the effectiveness of the proposed control strategy.
Get full access to this article
View all available purchase options and get full access to this article.
References
1.
Cheng, F. Y., and Pantelides, C. P. (1988). “Combining structural optimization and structural control.”NCEER Tech. Rep. 88-0006, State University of New York at Buffalo, N.Y.
2.
Cheng, F. Y., and Tian, P.(1993). “Generalized optimal active control algorithm with weighting matrix configuration, stability and time delay.”Int. J. Struct. Engrg. and Mech., 1(1), 119–135.
3.
Cheng, F. Y., Tian, P., Rao, V., Martin, K., Liou, F., and Yeh, J. H. (1996). “Theoretical and experimental studies on hybrid control of seismic structures.”Proc., 12th ASCE Conf. on Anal. and Computation, ASCE, 322–338.
4.
Housner, G. W., Soong, T. T., and Masri, S. F. (1994). “Second generation of active structural control in civil engineering.”Proc., 1st World Conf. on Struct. Control, International Association for Structural Control, Los Angeles, Calif.
5.
Kanai, K.(1957). “Semiempirical formula for the seismic characteristics of the ground.”Bull. of Earthquake Res. Inst., Univ. of Tokyo, Tokyo, Japan, 35, 309–325.
6.
Kobori, T. (1994). “Future direction on research and development of seismic response-controlled structure.”Proc., 1st World Conf. on Struct. Control, International Association for Structural Control, Los Angeles, Calif.
7.
Lu, J., Thorp, J. S., Aubert, B. H., and Larson, L. B.(1994). “Optimal tendon configuration of a tendon control system for a flexible structure.”AIAA J. Guidance, Control, and Dyn., 17(1), 161–169.
8.
Mathews, J. H., and Howell, R. W. (1996). Complex analysis for mathematics and engineering. William C. Brown Publishing, Dubuque, Iowa.
9.
Milman, M. H., and Chu, C. H.(1994). “Optimization methods for passive damper placement and tuning.”AIAA J. Guidance, Control, and Dyn., 17(4), 848–856.
10.
Palazzo, B., and Petti, L.(1997). “Stochastic response comparison between base isolated and fixed-base structures.”Earthquake Spectra, 13(1), 77–96.
11.
Pantelides, C. P., and Cheng, F. Y.(1990). “Optimum placement of controllers for seismic structures.”Int. J. Engrg. Struct., 12, 254–262.
12.
Soong, T. T., and Grigoriu, M. (1993). Random vibration of mechanical and structural systems. Prentice-Hall, Inc., Englewood Cliffs, N.J.
13.
Tajimi, H. (1960). “A statistical method of determining the maximum response of a building structure during an earthquake.”Proc., 2nd World Conf. on Earthquake Engrg., Earthquake Engineering Research Institute, Japan, 781–797.
Information & Authors
Information
Published In
Journal of Aerospace Engineering
Volume 11 • Issue 2 • April 1998
Pages: 52 - 58
Copyright
Copyright © 1998 American Society of Civil Engineers.
History
Published online: Apr 1, 1998
Published in print: Apr 1998
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.