A novel approach to enhance the accuracy of vibration control of Frames

Toloue, I. and Liew, M.S. and Harahap, I.S.H. and Lee, H.E. (2018) A novel approach to enhance the accuracy of vibration control of Frames. E3S Web of Conferences, 34 .

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All structures built within known seismically active regions are typically designed to endure earthquake forces. Despite advances in earthquake resistant structures, it can be inferred from hindsight that no structure is entirely immune to damage from earthquakes. Active vibration control systems, unlike the traditional methods which enlarge beams and columns, are highly effective countermeasures to reduce the effects of earthquake loading on a structure. It requires fast computation of nonlinear structural analysis in near time and has historically demanded advanced programming hosted on powerful computers. This research aims to develop a new approach for active vibration control of frames, which is applicable over both elastic and plastic material behavior. In this study, the Force Analogy Method (FAM), which is based on Hook's Law is further extended using the Timoshenko element which considers shear deformations to increase the reliability and accuracy of the controller. The proposed algorithm is applied to a 2D portal frame equipped with linear actuator, which is designed based on full state Linear Quadratic Regulator (LQR). For comparison purposes, the portal frame is analysed by both the Euler Bernoulli and Timoshenko element respectively. The results clearly demonstrate the superiority of the Timoshenko element over Euler Bernoulli for application in nonlinear analysis. © The Authors, published by EDP Sciences, 2018.

Item Type:Article
Impact Factor:cited By 0; Conference of 1st International Conference on Civil and Environmental Engineering, CENVIRON 2017 ; Conference Date: 28 November 2017 Through 29 November 2017; Conference Code:135385
Uncontrolled Keywords:Computer programming; Earthquake engineering; Environmental engineering; Linear actuators; Nonlinear analysis; Structures (built objects); Vibration control, Active vibration control systems; Active vibration controls; Earthquake loadings; Earthquake resistant structures; Force analogy method; Linear quadratic regulator; Nonlinear structural analysis; Seismically active region, Earthquakes
Departments / MOR / COE:Research Institutes > Institute for Sustainable Building
ID Code:21682
Deposited By: Ahmad Suhairi
Deposited On:04 Sep 2018 02:15
Last Modified:07 Jan 2019 08:06

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