Double-supersatellite platform test device based on the integration of air-floating ball and journal bearing

Abstract

The invention provides a double super satellite platform test device based on the integration of an air floating ball and a journal bearing, and belongs to the field of spacecraft physical simulation.The air floating ball bearing realizes Rx, Ry and Rz freedom motion of a load cabin object loading table, and a platform cabin Z-direction rotating frame, a platform cabin X-direction rotating frameand a platform cabin Y-direction rotating frame realize Rx, Ry and Rz freedom motion of the load cabin object loading table through the air floating journal bearing, and can further realize the commonspherical center movement of the load cabin object loading table and a platform cabin object loading table; through the composite common integrated combination configuration of an X-direction horizontal air-floating guide rail and a Y-direction air-floating guide rail, the device can realize the X-direction and Y-direction movement of the load cabin object loading table and the platform cabin object loading table, has the advantages of stability, reliability, simple structure, high integration level, large rotation angle and the like, and can be used for the attitude simulation, large swing angle maneuvering characteristic and in-motion imaging ground verification of the double super satellite platform.

Description

technical field [0001] The invention relates to the field of physical simulation of spacecraft, in particular to a dual-supersatellite platform test device based on the integration of air-floating balls and journal bearings. Background technique [0002] With the rapid development of science and technology, space-to-earth observation remote sensing missions are gradually developing towards high spatial resolution and high efficiency, and the high spatial resolution and high efficiency of observation remote sensing mainly depend on the pointing accuracy, stability and agile maneuvering of satellite payloads. performance. In traditional satellite platforms, flexible accessories such as large solar panels and moving parts such as flywheels, gyroscopes, and driving mechanisms are the main factors that affect the attitude and pointing accuracy, stability and agile maneuverability of satellite payloads. [0003] In the traditional satellite design, the payload compartment and the...

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Problems solved by technology

However, because the device adopts the built-in configuration of the double five-degree-of-freedom air-floor table, the large-angle maneuver test caused the size of the air-floating ball bearing in the external five-degree-of-freedom air-floor table to be too large, and formed a narrow ball ring belt air-flotation support structure , resulting in extremely difficult processing of large air-floating ball bearings, and poor air-floating working characteristics

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