Research on new type viscoelastic damper based on MRE smart material: design, experiment and modelling. (May 2014)

• Record Type: Journal Article
• Authors: Tu, J. W.; Yu, Y.; Huang, L.; Tu, B.; Xu, J. Y.
• Is Part Of: Materials research innovations. Volume 18(2014)Supplement 2
• Page Start: S243
• Page End: S249
• Publication Date: 2014-05
• Subjects: Magnetorheological elastomers, -- Viscoelastic damper, -- Adjustable stiffness, -- Magnetic field analysis, -- Model; Materials -- Research -- Periodicals; Matériaux -- Recherche -- Périodiques; 620.1105
• DOI: 10.1179/1432891714Z.000000000455
• Languages: English
• ISSNs: 1432-8917

Abstract

Abstract : Magnetorheological elastomers (MRE), a new type of smart material, overcome the disadvantages of magnetorheological fluid such as particle sedimentation and instability. The MRE smart material takes the place of the conventional viscoelastic material creatively, and the magnetic circuit analysis of a new viscoelastic damper with adjustable stiffness is proposed. According to the scheme determined through theoretical analysis, a viscoelastic damper with adjustable stiffness is designed, whose maximum output force reaches 15 kN, and its performance experiment is carried out on the hydraulic loading device, indicating that the new type damper has a continuously adjustable shear stiffness with current change. Finally, the revised Kelvin model is established for the new type damper, and the effectiveness of the model is proved through the comparison between the model simulation results and experimental results.