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Nonlinear stiffness of a magneto-rheological damper
Guo, DL; Hu, HY
AbstractThe last decade has witnessed an important role of magneto-rheological dampers in the semi-active vibration control on the basis of empirical models. Those models established by fitting experimental data, however, do not offer any explicit expressions for the stiffness and the damping of magneto-rheological dampers. Hence, it is not easy for engineers to get any intuitive information about the effects of stiffness and damping of a magneto-rheological damper on the dynamic performance of a controlled system. To manifest the nonlinear properties of a magneto-rheological damper, this paper presents the hysteretic phenomena and the additional nonlinear stiffness of a typical magneto-rheological damper in terms of equivalent linear stiffness and equivalent linear damping. Then, it gives a brief discussion about the effect of nonlinear stiffness on the vibration control through the numerical simulations and an experiment for the semi-active suspension of a quarter car model with a magneto-rheological damper installed. Both numerical simulations and experimental results show that the additional nonlinear stiffness in the magneto-rheological damper is remarkable, and should be taken into consideration in the design of vibration control.
KeywordAdditional Stiffness Equivalent Damping Equivalent Stiffness Hysteresis Magneto-rheological Damper
WOS HeadingsScience & Technology ; Technology
Indexed BySCI
WOS Research AreaEngineering ; Mechanics
WOS SubjectEngineering, Mechanical ; Mechanics
WOS IDWOS:000227959900003
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Cited Times:27[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Affiliation1.Nanjing Univ Aeronaut & Astronaut, Aeronaut Sci Key Lab Smart Mat & Struct, Nanjing 210016, Peoples R China
2.Chinese Acad Sci, Inst Automat, Lab Complex Syst & Intelligence Sci, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Guo, DL,Hu, HY. Nonlinear stiffness of a magneto-rheological damper[J]. NONLINEAR DYNAMICS,2005,40(3):241-249.
APA Guo, DL,&Hu, HY.(2005).Nonlinear stiffness of a magneto-rheological damper.NONLINEAR DYNAMICS,40(3),241-249.
MLA Guo, DL,et al."Nonlinear stiffness of a magneto-rheological damper".NONLINEAR DYNAMICS 40.3(2005):241-249.
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