On-orbit separation ground test device and detection method of binary star assembly spacecraft

Abstract

The invention provides a test device which simulates a satellite in-orbit state and separates two independent stars A and B through unlocking and separating devices on the ground and a detecting method. According to the scheme, a simulated star A is suspended by a structure mainly, and is unloaded gravitationally so as to simulate a test environment during separation of the star A and the star B;an unlocking bolt is unlocked by gas separation equipment, and the simulated star A acquires an upward thrust through a separating spring; by a pulley block and a balance weight mode, the gravity of the simulated star A is balanced; and by T-Prob of a laser tracker, position postures (x, y, z, alpha, beta, gamma) of the simulated star A in a whole upward movement process are acquired in real time.The test principle is simple, and the test device is easy to operate; an in-orbit state can be simulated, and gravitational balanced unloading to a spacecraft is realized effectively; a separation route is not lower than 80 mm; a balance force in the route is stable, and deviation is not greater than 0.1%; and a separation route is finished, the gradient of a system is smaller than 1 degree, andthe stability of the system is good.

Description

technical field [0001] The invention relates to a spacecraft test device, in particular to a ground test device and a detection method for the on-orbit separation of a binary-satellite assembly spacecraft. In particular, it is an on-orbit separation ground test device for a double-star assembly spacecraft that separates two independent stars A and B on the ground through an unlocking separation device. Background technique [0002] The common spacecraft separation test is to assess the separation between satellites and rockets. The object of the assessment is the pyrotechnic cutter and whether it can correctly ensure the normal separation between the satellites and rockets, and the content of the assessment does not include the separation distance. Therefore, in In the conventional separation test, it is not required to have a spatial displacement after the separation of the star and rocket. However, with the development of aerospace technology, the designer proposed a desi...

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Problems solved by technology

[0004] Descriptions and reports of success with such techniques have not yet been received

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