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Semi-active variable stiffness vibration control of vehicle seat suspension using an MR elastomer isolator

Journal Article


Abstract


  • This paper presents a study on continuously variable stiffness control of vehicle seat suspension

    using a magnetorheological elastomer (MRE) isolator. A concept design for an MRE isolator is

    proposed in the paper and its behavior is experimentally evaluated. An integrated seat

    suspension model, which includes a quarter-car suspension and a seat suspension with a driver

    body model, is used to design a sub-optimal H∞ controller for an active isolator. The desired

    control force generated by this active isolator is then emulated by the MRE isolator through its

    continuously variable stiffness property when the actuating condition is met. The vibration

    control effect of the MRE isolator is evaluated in terms of driver body acceleration responses

    under both bump and random road conditions. The results show that the proposed control

    strategy achieves better vibration reduction performance than conventional on–off control.

Publication Date


  • 2011

Citation


  • Du, H., Li, W. & Zhang, N. (2011). Semi-active variable stiffness vibration control of vehicle seat suspension using an MR elastomer isolator. Smart Materials and Structures, 20 (10), 105003-1-105003-10.

Scopus Eid


  • 2-s2.0-80053489124

Ro Metadata Url


  • http://ro.uow.edu.au/engpapers/2720

Start Page


  • 105003-1

End Page


  • 105003-10

Volume


  • 20

Issue


  • 10

Abstract


  • This paper presents a study on continuously variable stiffness control of vehicle seat suspension

    using a magnetorheological elastomer (MRE) isolator. A concept design for an MRE isolator is

    proposed in the paper and its behavior is experimentally evaluated. An integrated seat

    suspension model, which includes a quarter-car suspension and a seat suspension with a driver

    body model, is used to design a sub-optimal H∞ controller for an active isolator. The desired

    control force generated by this active isolator is then emulated by the MRE isolator through its

    continuously variable stiffness property when the actuating condition is met. The vibration

    control effect of the MRE isolator is evaluated in terms of driver body acceleration responses

    under both bump and random road conditions. The results show that the proposed control

    strategy achieves better vibration reduction performance than conventional on–off control.

Publication Date


  • 2011

Citation


  • Du, H., Li, W. & Zhang, N. (2011). Semi-active variable stiffness vibration control of vehicle seat suspension using an MR elastomer isolator. Smart Materials and Structures, 20 (10), 105003-1-105003-10.

Scopus Eid


  • 2-s2.0-80053489124

Ro Metadata Url


  • http://ro.uow.edu.au/engpapers/2720

Start Page


  • 105003-1

End Page


  • 105003-10

Volume


  • 20

Issue


  • 10