A single-degree-of-freedom linear vibration damping method and implementation device

Abstract

The invention provides a single-freedom-degree line vibration attenuation method and an achieving device. A carrier and equipment are connected through an elastic connecting piece. The elastic connecting piece attenuates vibration of a certain freedom degree of the carrier; and in addition, the carrier and the equipment are connected through a linear movement connecting piece, and the linear movement direction of the linear movement connecting piece is the single-freedom-degree vibration direction in which the elastic connecting piece conducts attenuation. The purpose of attenuating the line vibration in the single-freedom-degree movement direction and not reducing the rigidity of other movement freedom degrees is achieved. The mechanical equipment installed on a vibration attenuation device has very high rigidity and resonance frequency in the non-vibration direction; and the control difficulty of a movement part of the mechanical equipment can be effectively lowered, and the control precision is greatly improved. In the preferable scheme, a linear bearing generates friction in a point contact manner, and losses are greatly reduced.

Description

technical field [0001] The invention relates to a vibration reduction method and realization device for single-degree-of-freedom linear vibration, belonging to the field of mechanical equipment requiring vibration reduction, especially the field of mechanical equipment with multi-degree-of-freedom moving parts on a moving carrier, such as vehicle-mounted, ship-mounted, Vibration reduction of airborne mobile communication antenna products, photography pan-tilt equipment, tank artillery and other equipment. Background technique [0002] In the installation of existing mechanical equipment, in order to eliminate the influence of the vibration of the fixed surface on the equipment, a vibration damping device is usually installed between the equipment and the fixed surface, and the vibration damping device usually used is an elastic connector. Although such a vibration damping device can effectively attenuate the vibration of a certain degree of freedom transmitted from the fixed...

AI Technical Summary

Problems solved by technology

Although such a vibration damping device can effectively attenuate the vibration of a certain degree of freedom transmitted from the fixed surface to the mechanical equipment, it often reduces the stiffness and natural frequency of other degrees of freedom between the fixed surface and the mechanical equipment, causing the mechanical equipment to move. The difficulty of motion control increases, which affects the performance indicators of the entire mechanical equipment

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