Structural Engineering and Mechanics

  • 제1권1호
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  • Pages.119-135
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  • 1993
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Generalized optimal active control algorithm with weighting matrix configuration, stability and time-delay

  • Cheng, Franklin Y. (Intelligent System Center) ;
  • Tian, Peter (Civil Engineering Department, University of Missouri-Rolla)
  • 발행 : 1993.10.25
⟨ 이전 논문 다음 논문 ⟩

초록

The paper presents a generalized optimal active control algorithm for earthquake-resistant structures. The study included the weighting matrix configuration, stability, and time-delays for achieving control effectiveness and optimum solution. The sensitivity of various time-delays in the optimal solution is investigated for which the stability regions are determined. A simplified method for reducing the influence of time-delay on dynamic response is proposed. Numerical examples illustrate that the proposed optimal control algorithm is advantageous over others currently in vogue. Its feedback control law is independent of the time increment, and its weighting matrix can be flexibly selected and adjusted at any time during the operation of the control system. The examples also show that the weighting matrix based on pole placement approach is superior to other weighting matrix configurations for its self-adjustable control effectiveness. Using the time-delay correction method can significantly reduce the influence of time-delays on both structural response and required control force.

키워드

과제정보

연구 과제 주관 기관 : National Science Foundation

참고문헌

  1. Abdel-Rohman, M., Quintana, V., and Leipholz, H.H.E. (1980), "Optimal Control of Civil Engineering Structures," Journal of the Engineering Mechanics Division, ASCE, 106, (EM1), 55-73.
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  3. Yang, J.N., Akbarpour, A.;Ghaemmaghami, P. (1987), "Instantaneous Optimal Control Laws for Building Structures Under Earthquake Excitations," Technical Report, NCEER-87-0007.
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  8. Cheng, F.Y. and Pantelides, C.P. (1987), "Optimal Active Control of Wind Structures Using Instantaneous Algorithm," Vibration Control and Active Vibration Suppression, D.J. Inman, and J.C.Simons (eds.), American Society of Mechanical Engineers, 21-28.
  9. Cheng, F.Y. and Pantelides, C.P. (1988), "Algorithm Development for Using Optimal Control in Structural Optimization Subjected to Seismic and Wind Forces," NSF Report, U.S. Department of Commerce, National Technical Information Service, NTIS No. PB90-133471/AS.
  10. Cheng, F.Y., Tian, P. and Suthiwong, S. (1991), "Generalized Optimal Active Control Algorithm of Seismic Structures and Related Soil-Structure Formulations," Computational Mechanics in Structural Engineering, Recent Developments and Future Trends, F.Y. Cheng, and Fu Zizhi (eds.), Elsvier Science Publishers, London and New York 49-62.
  11. Cheng, F.Y. and Tian, P. (1992), "Generalized Optimal Active Control Algorithm for Nonlinear Seismic Structures," Proc. 10th World conference on Earthquake Engineering, Madrid, Spain, 3677-3682.
  12. Citron, S.J. (1969), Elements of Optimal Control, Holt, Rinehart and Winston, Inc.
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피인용 문헌

  1. Hybrid Control of Seismic Structures with Optimal Placement of Control Devices vol.11, pp.2, 1998, https://doi.org/10.1061/(ASCE)0893-1321(1998)11:2(52)