Lunar walking mechanism spherical mechanical foot with multi-directional vibration damping function and its vibration damping method

Abstract

The invention discloses a spherical mechanical foot of a lunar walking mechanism with multi-directional vibration reduction functions and a vibration reduction method thereof. The spherical mechanical foot includes an upper connection part connected with an upper mechanical leg, a lower connection part connected with a spherical mechanical foot body, The spherical mechanical foot body is provided with a central main energy-dissipating viscoelastic damping structure and multiple oblique energy-dissipating viscoelastic damping structures between the upper connecting part and the lower connecting part. The central main energy-dissipating junction is arranged symmetrically to the center. Through the oblique energy-dissipating viscoelastic damping structure and the central main energy-dissipating viscoelastic damping structure, the multi-directional harmful vibration transmitted by the spherical mechanical foot body is reduced, and the vertical bearing capacity is provided for the spherical mechanical foot body.

Description

technical field [0001] The invention relates to the fields of aerospace, machinery and civil engineering, in particular to a spherical mechanical foot of a lunar walking mechanism with a multi-directional vibration reduction function and a vibration reduction method thereof. [0002] technical background [0003] When the lunar base equipment moves on the lunar surface, the feet will be vibrated in different directions, which will adversely affect the movement and transport stability of the lunar base equipment. How to control the structural vibration of the foot end of the lunar-based equipment in the complex environment of the lunar surface is a frontier topic in the field of vibration control. The multi-directional vibration reduction and bearing performance research on the foot end of the moon-based equipment can effectively control the external vibration excitation of the foot end and ensure the safe movement and stable transfer of the moon-based equipment. [0004] At ...

AI Technical Summary

Problems solved by technology

[0004] At present, the research on vibration reduction technology of mechanical feet still has great limitations. The main shortcomings are: the research on vibration reduction of the foot end is mostly concentrated in the vertical direction, and the research on multi-directional vibration reduction is not sufficient.

However, when the lunar-based equipment performs horizontal braking, crossing obstacles, and traveling on slopes, it is often excited by vibrations in the horizontal direction. These harmful vibrations in the horizontal direction will adversely affect the structural strength and operational stability of the lunar-based equipment. influences

At the same time, the vibration reduction methods for mechanical feet mostly rely on active vibration reduction or semi-active vibration reduction, and their reliability is difficult to guarantee in the complex and resource-poor environment of the lunar surface.

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