Particle damping absorber with wheel and electromagnetic rheological fluid for railway vehicles

Abstract

The invention discloses a particle damping absorber with wheel and electromagnetic rheological fluid for railway vehicles. The particle damping absorber comprises the rigid wheel, a disc shock absorber, shock-absorbing particles, magnet exciting coils and the like. Two grooves are formed in the inner side and the outer side of a disc shock absorber shell respectively, and the shock-absorbing particles of a certain number and a certain size are installed in the grooves in the inner side and the outer side; the magnet exciting coils are installed in the groove in the inner side; the existing rigid wheel structure is adopted, and the disc shock absorber is fixed to a spoke through bolts. According to the particle damping absorber, the existing wheel structure is fully utilized, on the basis of guaranteeing the rigidity and the strength of the wheel, the effective shock absorber simple in structure is arranged, and the amplitude of damping of the shock absorber can be automatically adjusted according to the vibration condition of the wheel. The particle damping absorber has the advantages that the adjustable range of damping is wide, the excitation utilization rate is high, the energy consumption is small, the shock absorbing effect is good, and the reliability is high.

Description

technical field [0001] The invention relates to the field of rail vehicle vibration reduction, and relates to a wheel electromagnetic variable fluid type particle damping shock absorber for rail vehicles. Background technique [0002] Particle damping shock absorber is a new type of shock absorber based on particle damping technology. It has simple structure, obvious damping effect, low cost, maintenance-free, and strong adaptability to harsh environments. It is mainly used in the field of passive control. However, although the existing particle damping shock absorber has the above-mentioned characteristics, the vibration-damping particles collide with each other during the working process, which easily causes the wear of the structure and the particles, so that the service life of the shock absorber is reduced. The addition of magnetorheological fluid changes the contact conditions of the damping particles, and at the same time, by changing the viscosity of the magnetorheol...

AI Technical Summary

Problems solved by technology

[0003] The existing rigid wheels have a large equivalent slope, poor serpentine stability, and high-frequency vibrations, which will be strengthened by the action of the wheel center diaphragm and transmitted to the car body in the form of body noise, reducing ride comfort

At the same time, due to the wide vibration frequency, large range and long time of the rigid wheel, it may cause increased wear and shortened life of the wheel set.

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