Time-Delay Compensation in Active Control of Structures
Publication: Journal of Engineering Mechanics
Volume 124, Issue 9
Abstract
A complete time-delay compensation method is derived. The sensitivity of the stability of the system to the estimation error of the initial condition and excitation, to the estimation error of the delay in the system, and to the specification of the controlled pole pairs are analyzed. Nondimensional formulas in two sets that indicated the conditions of instability are derived. An active control strategy that controls the absolute responses of the structure is presented as an illustration. The adoption of this control algorithm to the base-isolated structure is investigated and is shown to be effective even if the control force is exerted only to the base. Through varied allocation of the controlled poles, the control system shows variable performance. A stability problem is induced if the time-delay compensation method suggested in several papers is adopted. The locations of the controlled pole pairs should therefore be carefully specified and checked according to the characteristics of the system.
Get full access to this article
View all available purchase options and get full access to this article.
References
1.
Abdel-Mooty, M., and Roorda, J.(1991). “Time-delay compensation in active damping of structures.”J. Engrg. Mech., ASCE, 117, 2549–2570.
2.
Abdel-Rohman, M.(1982). “Active control of large structures.”J. Engrg. Mech. Div., ASCE, 108, 719–730.
3.
Abdel-Rohman, M.(1987). “Time delay effects on actively damped structures.”J. Engrg. Mech., ASCE, 113, 1709–1719.
4.
Agrawal, A. K., Fujino, Y., and Bhartia, B. K.(1993). “Instability due to time delay and its compensation in active control of structures.”Earthquake Engrg. and Struct. Dyn., 22, 211–224.
5.
Chung, L. L., Lin, C. C., and Lu, K. H.(1995). “Time-delay control of structures.”Earthquake Engrg. and Struct. Dyn., 24, 687–701.
6.
Chung, L. L., Lin, R. C., Soong, T. T., and Reinhorn, A. M.(1989). “Experimental study of active control for MDOF seismic structures.”J. Engrg. Mech., ASCE, 115, 1609–1627.
7.
Chung, L. L., Reinhorn, A. M., and Soong, T. T. (1986). “An experimental study of active structural control.”Dynamic response of structures, G. C. Hart and R. B. Nelson, eds.
8.
Chung, L. L., Reinhorn, A. M., and Soong, T. T.(1988). “Experimental on active control of seismic structures.”J. Engrg. Mech., ASCE, 114, 241–256.
9.
McGreevy, S., Soong, T. T., and Reinhorn, A. M. (1988). “An experimental study of time delay compensation in active structural control.”Proc., 6th Int. Modal Analysis Conf. and Exhibits, Vol. I, 733–739.
10.
Miller, R. K., Masri, S. F., Dehghanyar, T. J., and Caughey, T. K.(1988). “Active vibration control of large civil structures.”J. Engrg. Mech., ASCE, 114, 1542–1570.
11.
Pan, T. C., and Cui, W.(1994). “Dynamic characteristics of shear buildings on laminated rubber bearings.”Earthquake Engrg. and Struct. Dyn., 23, 1315–1329.
12.
Pu, J. P., and Hsu, D. S.(1988). “Optimal control of tall buildings.”J. Engrg. Mech., ASCE, 114, 973–989.
13.
Pu, J. P., and Kelly, J. M.(1991). “Active control and seismic isolation.”J. Engrg. Mech., ASCE, 117, 2221–2236.
14.
Rodellar, J., Chung, L. L., and Soong, T. T.(1989). “Experimental digital control of structures.”J. Engrg. Mech., ASCE, 115, 1245–1261.
15.
Soong, T. T.(1988). “State-of-the-art review: Active structural control in civil engineering.”J. Engrg. Struct., ASCE, 114, 74–84.
16.
Yang, J. N., Danielians, A., and Liu, S. C.(1991). “Aseismic hybrid control systems for building structures.”J. Engrg. Mech., ASCE, 117, 836–852.
17.
Yang, J. N., Li, Z., Danielians, A., and Liu, S. C.(1992). “Seismic hybrid control of nonlinear and hysteretic structures. I.”J. Engrg. Mech., ASCE, 118, 1423–1439.
Information & Authors
Information
Published In
Journal of Engineering Mechanics
Volume 124 • Issue 9 • September 1998
Pages: 1018 - 1028
Copyright
Copyright © 1998 American Society of Civil Engineers.
History
Published online: Sep 1, 1998
Published in print: Sep 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.