A Nonlinear Energy Trap Vibration Absorbing Device for Whole-Satellite Vibration Suppression

Abstract

The invention discloses a nonlinear energy trap vibration absorbing device for whole satellite vibration suppression. The nonlinear energy trap vibration absorbing device comprises two geometric linear springs, a supporting linear spring, a mass block, a guide rail, a bracket and a bottom plate; the vibration absorbing device is installed along the wall of an adapter cone shell; and the mass blockmoves along the guide rail to drive the three linear springs to move to achieve the relatively-pure cubic stiffness characteristic, and a nonlinear energy trap device is formed to achieve the vibration absorption effect. The nonlinear energy trap vibration absorbing device is arranged on the wall of the adapter cone shell of a satellite, the linear springs are guided in the direction of the guiderail, and the longitudinal and transverse vibration suppression effect is achieved; and meanwhile, the nonlinear energy trap device is simple in structure and easy to adjust and install and has the advantages that the robustness is good, effective broadband vibration suppression can be achieved and an external power supply is not needed.

Description

technical field [0001] The invention belongs to the technical field of satellite vibration control in the active stage of rocket launch, and relates to a nonlinear energy well vibration-absorbing device for vibration suppression of the whole satellite. Background technique [0002] During the active phase of the launch of the launch vehicle, the environment in which the satellite is located is the worst. At this stage, the satellite will be affected by multiple loads at the same time, and these loads are mostly distributed in a wide frequency domain. These vibration loads often lead to failure of the satellite and its sensitive components, and the core part of the launch vehicle is the satellite, and damage to the satellite means the failure of the rocket launch mission. Since the nonlinear energy trap vibration absorbing device has the advantages of broadband vibration absorption, and has the advantages of small mass and volume, the satellite vibration suppression technolo...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a nonlinear energy well vibration-absorbing device for whole-satellite vibration suppression, which solves the problem that the nonlinear energy well vibration-absorbing device in the prior art cannot suppress the longitudinal vibration of the satellite in the active segment

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