Control and Simulation on Vertical Vibration of Subway Rail via Magnetorheological Isolators

Abstract:

A semi-active vibration system via magnetorheological (MR) isolators can contribute to enhance isolation performance. In this study, a vertical vibration model of subway rail via MR isolators was proposed. The adjustable damping and stiffness characteristics of isolator were also analyzed. Based on a floating slab track (FST) isolation model, a variable domain fuzzy control system was proposed to decrease the vertical vibration force. The results simulated in MATLAB indicate that compared with passive isolators, FST system via MR isolators decease vertical vibration force transmissibility ratio to 40% at low frequency (15Hz) and to 31% at medium frequency (30Hz).

• Periodical: Advanced Materials Research (Volumes 482-484)
• Pages: 1313-1316
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.482-484.1313
• Online since: February 2012
• Authors: Rui Li, Li Min He, Xue Qin Li, Ke Long Chen
• Keywords: Floating Slab Track, Fuzzy Control, Magnetorheological Isolator, Simulation

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