On-orbit maintenance ground test method under spacecraft cabin condition

By simulating a weightless environment using on-orbit maintenance simulation software and a zero-gravity suspension device, the problem of simulating astronauts' on-orbit maintenance attitude during ground verification was solved. This enabled visual, accessible, and operable verification of on-orbit maintenance, simplified ground verification equipment, and improved verification efficiency.

CN121384500APending Publication Date: 2026-01-23SHANGHAI AEROSPACE SYST ENG INST
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Patent Information

Application Number
CN202511473247.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-10-15
Publication Date
2026-01-23

AI Technical Summary

Technical Problem

Existing technologies cannot effectively simulate the various attitudes of astronauts performing maintenance in orbit under a 1g environment on the ground, resulting in insufficient verification of the visibility, accessibility, and operability of maintenance. Furthermore, ground verification equipment is costly and time-consuming.

Method used

The system uses maintenance simulation software to simulate the astronaut's on-orbit maintenance posture, and combines a zero-gravity hoisting device to simulate a weightless environment on the ground. The system verifies the accessibility, visibility, and operability of maintenance tools, and conducts passability verification of the on-orbit maintenance unit.

Benefits of technology

It enables visual, accessible, and operable verification of on-orbit maintenance, simplifies ground verification equipment, and improves verification efficiency and effectiveness.

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Abstract

The invention provides an on-orbit maintenance ground test method under the cabin condition of a manned spacecraft, and the method comprises the steps: S1, employing maintenance simulation software to carry out maintainability simulation under a cabin environment, and determining a maintenance pose; s2, simulating a surrounding layout environment of the on-orbit maintenance unit, and setting a proper position according to a simulation result, so that the relative poses of the simulated astronaut and the on-orbit maintenance unit are kept consistent during ground maintenance; s3, performing maintenance operation verification by the maintenance personnel by adopting the relative poses and the maintenance tools according to the maintenance operation requirements, and verifying accessibility, visibility and operability in the maintenance operation process; s4, carrying out trafficability verification by the on-orbit maintenance unit, and verifying whether the maintenance product can pass through the transfer channel or not; and S5, the maintenance pose is adjusted, and the optimal maintenance state is optimized. According to the invention, maintainability verification in an on-orbit zero-gravity whole cabin environment can be effectively verified, a zero-gravity verification problem under a ground cabin body is solved, and design optimization of on-orbit maintainability can be effectively supported.
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