Parameter Optimization and Control Characteristics Analysis of TLMD System Based on Phase Deviation

doi:10.1007/s12204-019-2148-5

Journal of Shanghai Jiao Tong University (Science) ›› 2020, Vol. 25 ›› Issue (3): 372-383.doi: 10.1007/s12204-019-2148-5

Parameter Optimization and Control Characteristics Analysis of TLMD System Based on Phase Deviation

HU Jingjing (胡晶晶), XU Jiayun (徐家云)

(1. Wuhan Institute of Shipbuilding Technology, Wuhan 430050, China; 2. School of Civil Engineering and Architecture, Wuhan University of Technology, Wuhan 430070, China; 3. College of Humanities and Sciences, Guizhou Minzu University, Guiyang 550025, China)

出版日期:2020-06-15 发布日期:2020-05-29
通讯作者: XU Jiayun (徐家云) E-mail: xjy13871384868@126.com

Parameter Optimization and Control Characteristics Analysis of TLMD System Based on Phase Deviation

HU Jingjing (胡晶晶), XU Jiayun (徐家云)

(1. Wuhan Institute of Shipbuilding Technology, Wuhan 430050, China; 2. School of Civil Engineering and Architecture, Wuhan University of Technology, Wuhan 430070, China; 3. College of Humanities and Sciences, Guizhou Minzu University, Guiyang 550025, China)

Online:2020-06-15 Published:2020-05-29
Contact: XU Jiayun (徐家云) E-mail: xjy13871384868@126.com

摘要/Abstract

摘要： Combined with the advantages and disadvantages of tuned liquid damper (TLD) and tuned mass damper (TMD), a double tuned liquid mass damper (TLMD) is proposed by replacing the rigid connection of TLD with the spring structure. The motion equation of a single-degree-of-freedom structure with a TLMD attached at its top is found under harmonic excitation. Comparing the energy consumption and amplitude of primary structure with equal mass ratio TMD, it is found that the energy dissipation performance of TLMD is better in the effective phase region. The interaction process between TLMD and structure is analyzed, and the formula of phase deviation between the relative velocity of tank and the displacement of primary structure is deduced. By analyzing the influence of mass ratio, frequency ratio, damping ratio and water depth ratio on the damping effect, the results show that the frequency ratio and liquid depth ratio have great influence on the size and location of deep resonance peak, and the mass ratio and damping ratio have great influence on the width of the effective frequency band. The formula of equivalent damping ratio is proposed based on the principle of energy and it is found that the equivalent damping ratio is related to the phase deviation and change with the frequency ratio of the external excitation.

关键词: double tuned liquid mass damper, phase deviation, optimal parameter, equivalent damping ratio, control effect

Abstract: Combined with the advantages and disadvantages of tuned liquid damper (TLD) and tuned mass damper (TMD), a double tuned liquid mass damper (TLMD) is proposed by replacing the rigid connection of TLD with the spring structure. The motion equation of a single-degree-of-freedom structure with a TLMD attached at its top is found under harmonic excitation. Comparing the energy consumption and amplitude of primary structure with equal mass ratio TMD, it is found that the energy dissipation performance of TLMD is better in the effective phase region. The interaction process between TLMD and structure is analyzed, and the formula of phase deviation between the relative velocity of tank and the displacement of primary structure is deduced. By analyzing the influence of mass ratio, frequency ratio, damping ratio and water depth ratio on the damping effect, the results show that the frequency ratio and liquid depth ratio have great influence on the size and location of deep resonance peak, and the mass ratio and damping ratio have great influence on the width of the effective frequency band. The formula of equivalent damping ratio is proposed based on the principle of energy and it is found that the equivalent damping ratio is related to the phase deviation and change with the frequency ratio of the external excitation.

Key words: double tuned liquid mass damper, phase deviation, optimal parameter, equivalent damping ratio, control effect

中图分类号:

TU 311

HU Jingjing, XU Jiayun . Parameter Optimization and Control Characteristics Analysis of TLMD System Based on Phase Deviation[J]. Journal of Shanghai Jiao Tong University (Science), 2020, 25(3): 372-383.

参考文献

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Parameter Optimization and Control Characteristics Analysis of TLMD System Based on Phase Deviation

Parameter Optimization and Control Characteristics Analysis of TLMD System Based on Phase Deviation

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