Affiliation:
1. College of Physics and Electronic Information Engineering, Minjiang University, China
2. Key Laboratory of Advanced Motion Control, Fujian Province University, China
3. Key Laboratory of Fluid Power and Intelligent Electro-Hydraulic Control, Fujian Province University, China
4. College of Information and Mechatronics Engineering, Ningde Normal University, China
Abstract
Finding effective means of protecting structures from dynamic hazards is a challenging task and has gained increasing significance. As for the seismically excited adjacent structures, an intelligent control strategy using magnetorheological dampers as connection devices considering soil–structure interaction is presented. First, the calculation model for the coupled structure–soil–structure interaction–magnetorheological damper system is developed, and the motion equation for calculating the seismic responses is then derived. Second, a semiactive control strategy integrating a modified crow search algorithm into a fuzzy logic control is proposed. In this strategy, to accurately calculate the voltage of magnetorheological dampers, the modified crow search algorithm with a hybrid coding strategy, priority selection scheme for target crows, new solution updating method, and guarantee mechanism of the solution feasibility is proposed to design the fuzzy logic control system. The numerical example of 10-story and 20-story coupled buildings demonstrates that soil–structure interaction should be taken into consideration to avoid overestimating the control effect. Besides, the proposed modified crow search algorithm outperforms genetic algorithm in terms of accuracy and robustness. Furthermore, by using magnetorheological dampers to interconnect the coupled structure with soil–structure interaction, dual advantages, that is response reduction and pounding mitigation can be achieved. The proposed modified crow search algorithm–fuzzy logic control method shows comprehensive performance superiority over its competitors, that is passive-off, passive-on, on–off, linear quadratic regulator–clipped voltage law, and linear quadratic Gaussian–clipped voltage law control strategies.
Funder
Education Department of Fujian Province
Fujian Province
Subject
Mechanical Engineering,Mechanics of Materials,Aerospace Engineering,Automotive Engineering,General Materials Science
Cited by
17 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献