Micro-low-gravity simulation apparatus and simulation test method

Abstract

The invention provides a micro-low-gravity simulation apparatus and test method. The simulation apparatus comprises a magnetic guiding panel, a rotating mechanism, an arc guide rail, a suck-back typebearing, a pulley block, a suspension mechanism and a fixed pulley; the magnetic guiding panel and the arc guide rail are respectively horizontally arranged, and the center of the arc guide rail is disposed on a rotating axis of the rotating mechanism; the suck-back bearing is stabilized on a noncontact balance point of a bottom surface of the magnetic guiding panel; the suspension mechanism is suspended on the suck-back bearing by virtue of the pulley block, one end of a rope is fixed on a sliding block of the arc guide rail, and the other end passes by the first fixed pulley to be provided with a weight block in a suspension manner. By adopting the micro-low-gravity simulation apparatus of the invention, a low-cost micro-gravity simulation experimental environment is provided, the suck-back type bearing is combined with an air floatation technology and an electromagnetic technology, the micro-low-gravity simulation apparatus can be adsorbed on the lower surface of the magnetic guiding panel and can move freely in a bottom plane of the magnetic guiding panel; and moreover, the micro-low-gravity simulation apparatus has the advantages of no friction and no contact, so that the testinterference is greatly reduced, and the accuracy of a test simulation result is further improved.

Description

technical field [0001] The invention belongs to the technical field of micro-low gravity environment simulation in the aerospace field, and in particular relates to a micro-low gravity simulation device and a simulation test method. Background technique [0002] It is a commonly used method in the field of aerospace to simulate and simulate the special working environment of the spacecraft to carry out test experiments to verify the structural performance of the spacecraft on the ground, and it is also a strategy that takes into account both economy and timeliness in the development process. [0003] In recent years, the structure of spacecraft has become more and more complex, and the deployable mechanisms on it, such as radar antennas, solar wings, and robotic arms, have also tended to become more complex and larger. Due to the complexity and large range of motion, it is increasingly difficult to meet the requirements of the microgravity test of the deployable mechanism of...

AI Technical Summary

Problems solved by technology

However, limited by the shape of the air-floating platform and guide rails, the space for unfolding movement is limited, and it is often necessary to add additional masses such as complex support mechanisms during deployment, causing additional disturbances

Suspension method commonly used brackets, gantry, swing arm and other structures to suspend the deployment mechanism, the structure is complex, and the follower mechanism of the suspension, such as the swing arm, has a complex structure and large mass, which will cause a large additional disturbance to the movement of the spacecraft deployment mechanism. The large moment of inertia affects the unfolding accuracy

The water flotation method has low precision and high resistance, and it is difficult to meet the high-precision test requirements. Other drop tower methods and weightless aircraft methods are not suitable for the microgravity test conditions and requirements of current spacecraft, and the cost is high

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