Decentralized sliding mode control of building using MR-dampers

Kung-Chun Lu; Chin-Hsiung Loh; Jann N. Yang; Pei-Yang Lin

doi:10.1117/12.773855

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22 April 2008 Decentralized sliding mode control of building using MR-dampers

Kung-Chun Lu; Chin-Hsiung Loh; Jann N. Yang; Pei-Yang Lin

Author Affiliations +

Kung-Chun Lu , Chin-Hsiung Loh
National Taiwan Univ. (Taiwan)
Jann N. Yang
Univ. of California/Irvine (United States)
Pei-Yang Lin
National Ctr. for Research on Earthquake Engineering (Taiwan)

Proceedings Volume 6932, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2008; 69320V (2008) https://doi.org/10.1117/12.773855
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2008, San Diego, California, United States

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Abstract

This paper presents the structural control results of shaking table tests for a steel frame structure in order to evaluate the performance of a number of proposed semi-active control algorithms using multiple magnetorheological (MR) dampers. The test structure is a six-story steel frame equipped with MR-dampers. Four different cases of damper arrangement in the structure are selected for the control study. In experimental tests, an EL Centro earthquake, a Kobe earthquake and a Chi-Chi earthquake (station TCU067) are used as ground excitations. Various control algorithms are used for this semi-active control studies, including the Decentralized Sliding Mode Control (DSMC), LQR control and passive-on and passive-off control. Each algorithm is formulated specifically for the use of MR-dampers. Additionally, each algorithm uses measurements of the absolute acceleration and the device velocity for the determination of the control action to ensure that the algorithm can be implemented on a physical structure. The performance of each algorithm is evaluated based on the results of shaking table tests, and the advantages of each algorithm is compared and discussed. The reduction of the story drift and acceleration throughout the structure is examined.

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Kung-Chun Lu, Chin-Hsiung Loh, Jann N. Yang, and Pei-Yang Lin "Decentralized sliding mode control of building using MR-dampers", Proc. SPIE 6932, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2008, 69320V (22 April 2008); doi: 10.1117/12.773855; https://doi.org/10.1117/12.773855

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KEYWORDS

Control systems

Earthquakes

Feedback signals

Electroluminescence

Feedback control

Civil engineering

Computing systems

Matrices

Finite element methods

Sensors

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Kung-Chun Lu, Chin-Hsiung Loh, Jann N. Yang, Pei-Yang Lin, "Decentralized sliding mode control of building using MR-dampers," Proc. SPIE 6932, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2008, 69320V (22 April 2008);

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