Self-adaptive six-degree-of-freedom air floating simulation test bench and calculation method thereof

Abstract

The invention provides a self-adaptive six-degree-of-freedom air flotation simulation test bench for satellite ground testing. The self-adaptive six-degree-of-freedom air flotation simulation test bench comprises a test bench body, a lower station mechanism and an upper station mechanism; the lower station mechanism comprises a lower station platform, a lifting bracket, a lifting driving mechanism, an air floating journal bearing, a first air floating plane bearing, a first air floating ball bearing and a self-adaptive air floating group; and the self-adaptive air flotation group comprises a self-adaptive support, a second air flotation plane bearing and a second air flotation ball bearing. A satellite air floating simulation test with six degrees of freedom is arranged on the upper station mechanism, and the performance of a satellite measurement and control system, especially the omnibearing orbital transfer performance, can be more comprehensively and truly checked; the lower station platform keeps parallel to the test bench in a self-adaptive mode through the self-adaptive air floating group, so that the processing difficulty of the test bench is reduced, and the possibility is provided for a larger-scale test; and the test bench can adopt a form of infinitely splicing local small platforms, can meet the requirements of ground large-scale tests, and provides conditions for multi-satellite orbital transfer and formation tests.

Description

technical field [0001] The invention relates to the field of satellite ground test simulation test system, in particular to an adaptive six-degree-of-freedom air flotation simulation test bench and a calculation method thereof. Background technique [0002] Since the 1990s, there has been a revolutionary technology to improve satellite performance and survivability that is different from previous satellite concepts—new modern small satellite cluster technology. For example, the concept of "fractionated spacecraft modules" proposed by scientists in recent years, decomposes an on-orbit service spacecraft into many small satellite modules with special functions according to their functions. These small satellite modules are physically separated. Wireless transmission forms a virtual large satellite to complete specific tasks: such as forming a large space telescope array to search for terrestrial planets suitable for human survival outside the solar system or to search for livi...

AI Technical Summary

Problems solved by technology

However, the two translational degrees of freedom are actually constrained and can only be used for quality testing of satellites, and cannot be used for physical orbit-changing tests on equipment on satellites.

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