Integrated device for vibration reduction and buffering

Abstract

The invention discloses a novel vibration reduction and buffering integrated device, which comprises a variable-section cylinder, a first piston arranged in the cylinder, a first piston rod connected with the first piston, and a first piston connected with the first piston. The second piston rod, the second piston arranged at the end of the second piston rod, and the upper end cover and the lower end cover respectively arranged at the end of the cylinder; the cylinder includes a damping section and a buffer section, the first piston and the inner wall of the cylinder There is a gap between them; the second piston is arranged in the buffer section and the second piston can move along the axial direction of the cylinder, and the buffer section is filled with ferromagnetic particle balls. The device of this technical solution utilizes the performance of the magnetorheological damper , can adapt to a variety of external working conditions, and has good vibration damping performance; when buffering, the performance of the particle damper is used, the output force value is stable, and the magnetic field can be changed by adjusting the coil current, and the friction coefficient between the second piston and the particles can be adjusted. It can adapt to various buffer working conditions; and the invention has compact structure and simple installation form.

Description

technical field [0001] The invention relates to the field of mechanical vibration reduction, in particular to an integrated device for vibration reduction and buffering. Background technique [0002] Existing devices that can both reduce vibration and buffer mainly include particle dampers, magnetorheological dampers, and the like. The particle damper has the advantages of simple structure, small size, low cost, and does not require external energy input. It uses friction between particles, piston head and particle friction to consume energy, and the output force value is stable and large in the buffer stroke, but it is a passive energy absorber. , can only be applied to a single working condition; as a semi-active energy absorber, the magnetorheological damper only needs a small amount of external energy input to realize the change of the output force. The adjustment of the input current produces different output forces, which can cope with changing and complex external wo...

AI Technical Summary

Problems solved by technology

The particle damper has the advantages of simple structure, small size, low cost, and does not require external energy input. It uses friction between particles, piston head and particle friction to consume energy, and the output force value is stable and large in the buffer stroke, but it is a passive energy absorber. , can only be applied to a single working condition; as a semi-active energy absorber, the magnetorheological damper only needs a small amount of external energy input to realize the change of the output force. The adjustment of the input current produces different output forces, which can cope with changing and complex external working conditions, but the output force of the magnetorheological damper is greatly affected by the speed, and the requirements for the control algorithm are high and the controllability is not good under the buffering condition.

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