Journal of Applied Mathematics

  • J. Appl. Math.
  • Volume 2014, Special Issue (2013), Article ID 527530, 10 pages.

TLCD Parametric Optimization for the Vibration Control of Building Structures Based on Linear Matrix Inequality

Linsheng Huo, Chunxu Qu, and Hongnan Li

Full-text: Open access

Abstract

Passive liquid dampers have been used to effectively reduce the dynamic response of civil infrastructures subjected to earthquakes or strong winds. The design of liquid dampers for structural vibration control involves the determination of the optimal parameters. This paper presents an optimal design methodology for tuned liquid column dampers (TLCDs) based on the H control theory. A practical structure, Dalian Xinghai Financial Business Building, is used to illustrate the feasibility of the optimal procedure. The model of structure is built by the finite element method and simplified to the lumped mass model. To facilitate the design of TLCDs, the TLCD parametric optimization problem is transferred to the feedback controller design problem. Through the bounded real lemma, an optimization problem with bilinear matrix inequality (BMI) constraints is constructed to design a static output feedback H controller. Iterative linear matrix inequality method is employed and it added some value range constraints to solve the BMI problem. After the TLCD parameters are optimized, the responses of displacement and acceleration in frequency domain and time domain are compared for the structure with and without TLCD. It is validated that the TLCD with the optimized parameters can make the structure satisfy the need for safety and comfort.

Article information

Source
J. Appl. Math., Volume 2014, Special Issue (2013), Article ID 527530, 10 pages.

Dates
First available in Project Euclid: 1 October 2014

Permanent link to this document
https://projecteuclid.org/euclid.jam/1412176444

Digital Object Identifier
doi:10.1155/2014/527530

Citation

Huo, Linsheng; Qu, Chunxu; Li, Hongnan. TLCD Parametric Optimization for the Vibration Control of Building Structures Based on Linear Matrix Inequality. J. Appl. Math. 2014, Special Issue (2013), Article ID 527530, 10 pages. doi:10.1155/2014/527530. https://projecteuclid.org/euclid.jam/1412176444


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