Weightlessness simulation system based on air cylinder and air floating cushion

Abstract

The invention discloses a weightlessness simulation system based on an air cylinder and an air floatation cushion, which comprises a bottom plate, a hinge mounting mechanism, a vibration excitation mechanism and an air floatation mechanism, and is characterized in that the hinge mounting mechanism, the air floatation mechanism and the vibration excitation mechanism are sequentially mounted on the bottom plate along a straight line; the hinge mounting mechanism is used for fixing a hinge to be tested, the hinge mounting mechanism comprises the hinge to be tested, a driving adapter plate, a hinge mounting seat, a hinge mounting seat supporting block, a light rigid rod and a balancing weight, and the vibration excitation mechanism comprises a force sensor flange, a force sensor, a vibration excitation rod, a vibration exciter, a vibration exciter mounting seat and a vibration exciter mounting seat supporting block. The air floating mechanism comprises an air floating cushion, an air floating platform, a piston rod, a piston, an air cylinder upper end cover, an air cylinder lower end cover, an air cylinder wall, a limiting rod and an air floating mechanism base, the air floating device is used for simulating a weightless environment, the influence of friction force is reduced, and the test result is more accurate.

Description

technical field [0001] The invention relates to the field of a simulated weightlessness system based on a cylinder and an air-floating cushion, and more specifically, relates to a simulated weightlessness system based on a cylinder and an air-floating cushion. Background technique [0002] The solar cell array is the only energy source for most spacecraft in orbit. The principle is to convert the radiant energy of sunlight into electrical energy through the photovoltaic effect, so as to ensure the power demand of spacecraft in orbit. The solar cell array is mainly composed of a plurality of substrates with solar cells attached, and the substrates are connected by hinges. In order to obtain the working parameters and performance of the solar cell array, it is necessary to simulate a weightless environment on the ground. In the structure of the solar cell array, the hinge is a connecting piece. Facts have proved that the stiffness of the hinge will affect the modeling and simu...

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Problems solved by technology

[0003] The purpose of the present invention is to solve the above-mentioned problems that the current air flotation mechanism cannot provide constant force and the existence of tracheal disturbance, and proposes a simulated weightlessness system based on the cylinder and air flotation cushion, which effectively avoids the hinge due to the inability to provide a constant force of a certain value. Effects of interaction forces on test results, and effects of tracheal disturbances on tests

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