Method and device for optimizing vibration isolation parameters of magnetorheological isolators in floating slab tracks

Abstract

The invention provides a method and device for optimizing vibration isolation parameters of a magneto-rheological vibration isolator in a floating slab track. The method comprises the steps of conducting nondimensionalization analysis on a vibration isolation equation and a performance index equation of a vibration isolation model built by a floating slab, the magneto-rheological vibration isolator and a foundation, obtaining optimum nondimensionalization vibration isolation parameters of the magneto-rheological vibration isolator, and converting the optimum nondimensionalization vibration isolation parameters into optimum dimensional vibration isolation parameters. By the adoption of the method and device for optimizing the vibration isolation parameters of the magneto-rheological vibration isolator in the floating slab track, the optimum vibration isolation parameters, meeting performance indexes, of the magneto-rheological vibration isolator can be obtained.

Description

technical field [0001] The invention relates to the technical field of subway track vibration isolation, in particular to a method and device for optimizing vibration isolation parameters of a magnetorheological vibration isolator in a floating slab track. Background technique [0002] In recent years, subway rail transit has developed rapidly, which has brought a lot of convenience to modern life. However, most subway trains pass through densely populated and economically developed urban centers, and vibrations such as collisions between train wheels and rails will occur. This vibration is transmitted to the foundation through sleepers and track beds, which will induce secondary damage to adjacent buildings, equipment and personnel Vibration, adverse effects and hazards. Therefore, people have proposed a variety of subway track structures for vibration isolation treatment of subway tracks, among which the best vibration isolation effect is undoubtedly the floating slat tra...

AI Technical Summary

Problems solved by technology

At present, floating slab tracks are mainly divided into rubber-supported floating slab tracks and steel spring-supported floating slab tracks according to different types of vibration isolators. These two floating slab tracks are passive vibration isolation methods, that is, isolation The stiffness and damping of the vibrator are difficult to adjust, thus limiting the application effect of the two floating slab tracks

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