Development and simulation evaluation of a magnetorheological elastomer isolator for seat vibration control

• Published in: Journal of intelligent material systems and structures 2012-06, Vol.23 (9), p.1041-1048
• Main Authors: Li, Weihua, Zhang, Xianzhou, Du, Haiping
• Format: Article
• Language: English
• Subjects: Control systems; Crashes; Cross-disciplinary physics: materials science; rheology; Elastomers; Electro- and magnetorheological fluids; Exact sciences and technology; Fatigue (materials); Fundamental areas of phenomenology (including applications); Isolators; Material types; Physics; Rheology; Seats; Solid mechanics; Structural and continuum mechanics; Vibration; Vibration control; Vibration, mechanical wave, dynamic stability (aeroelasticity, vibration control...)
• ISSN: 1045-389X; 1530-8138
• DOI: 10.1177/1045389X11435431

Driver fatigue is one of the leading factors contributing to road crashes. Environmental stress, such as unwanted seat vibration, is a key contributor to fatigue. This article presents the design and development of a magnetorheological elastomer isolator for a seat suspension system. By altering the magnetorheological elastomer isolator’s stiffness through a controllable magnetic field and selecting suitable control strategy, the system’s natural frequency can be changed to avoid resonance, which consequently reduce the vehicle’s vibration energy input to seat, and thus suppress the seat’s response. Experimental results show that the developed magnetorheological elastomer isolator is able to reduce vibration more when compared with the passive isolation system, indicating the significant potential of its application in vehicle seat vibration control.