#6677. A theoretical vibration-reduction effect analysis of the floating slab track supported by nonlinear variable stiffness isolators and semi-active magneto-rheological dampers

November 2026publication date
Proposal available till 17-05-2025
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Journal’s subject area:
Civil and Structural Engineering;
Building and Construction;
Mechanics of Materials;
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Abstract:
Nonlinear vibration control theory has resolved some bottleneck problems that cannot be solved by traditional linear vibration control theories. In this study, intelligent controllable magneto-rheological dampers (MR-Ds) and high-static-low-dynamic variable stiffness vibration isolators (VS-VIs) are innovatively applied to a traditional steel-spring floating slab track (FST) to improve its low-frequency vibration-reduction effect. To determine the reasonable parameter group of the VS-VI and the parameter matching when used with MR-D, parameter groups were first preliminarily proposed through static and dynamic analyses of the equivalent single-degree-of-freedom (SDOF) model of the FST.
Keywords:
floating slab track; low-frequency vibration-reduction; magneto-rheological damper; nonlinear vibration control; variable stiffness vibration isolator

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