Structural Engineering and Mechanics

  • 제19권1호
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  • Pages.107-121
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  • 2005
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Suboptimal control strategy in structural control implementation

  • Xu, J.Y. (Department of Civil Engineering, Wuhan University of Technology) ;
  • Li, Q.S. (Department of Building and Construction, City University of Hong Kong) ;
  • Li, G.Q. (Department of Civil Engineering, Wuhan University of Technology, School of Engineering and Science, Swinburne University of Technology) ;
  • Wu, J.R. (Department of Building and Construction, City University of Hong Kong) ;
  • Tang, J. (Department of Building and Construction, City University of Hong Kong)
  • 투고 : 2002.12.16
  • 심사 : 2004.05.19
  • 발행 : 2005.01.10
⟨ 이전 논문 다음 논문 ⟩

초록

The suboptimal control rule is introduced in structural control implementation as an alternative over the optimal control because the optimal control may require large amount of processing time when applied to complex structural control problems. It is well known that any time delay in structural control implementation will cause un-synchronized application of the control forces, which not only reduce the effectiveness of an active control system, but also cause instability of the control system. The effect of time delay on the displacement and acceleration responses of building structures is studied when the suboptimal control rule is adopted. Two examples are given to show the effectiveness of the suboptimal control rule. It is shown through the examples that the present method is easy in implementation and high in efficiency and it can significantly reduce the time delay in structural control implementation without significant loss of performance.

키워드

참고문헌

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피인용 문헌

  1. A Simple Active Control Algorithm for Earthquake Excited Structures vol.25, pp.3, 2010, https://doi.org/10.1111/j.1467-8667.2009.00629.x
  2. Control of Structural Response Under Earthquake Excitation vol.27, pp.8, 2012, https://doi.org/10.1111/j.1467-8667.2012.00776.x