基于变论域模糊控制的时变结构震动控制方法研究

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Abstract Most of the existing control strategies are efficient to the constant structures, which do not consider the stiffness and mass degradation before or during an earthquake. This paper takes the time-varying three-story frame structure as the controlled object, introduces the variable universe method on the basis of the traditional fuzzy control algorithm, and establishes the time-varying structure vibration control method based on the variable universe fuzzy control. By adding a scaling factor fuzzy controller to the traditional fuzzy controller, the error and error change rate of the controlled object are taken as the input, and the scaling factor is taken as the output. The fuzzy universe of the fuzzy controller is adaptively adjusted according to the error and error change rate of the controlled object. Simulink simulation results show that the proposed control method can realize adaptive adjustment of fuzzy control universe, and the control effect for displacement, velocity and acceleration of time-varying structures is superior to traditional fuzzy control and ON-OFF control algorithm, which can be used in practice.

Key words： Time-varying structure stiffness degradation semi-active control variable domain fuzzy control

Received: 07 May 2022 Published: 28 September 2023

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	Articles by authors
	MEI Pinbin
	LI Fangfang
	L Yang

Cite this article:

MEI Pinbin,LI Fangfang,L Yang. Vibration control of time-varying structures based on variable universe fuzzy control[J]. JOURNAL OF VIBRATION AND SHOCK, 2023, 42(18): 155-163.

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http://jvs.sjtu.edu.cn/EN/ OR http://jvs.sjtu.edu.cn/EN/Y2023/V42/I18/155

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