Virtual simulation and evaluation method for in-orbit maintenance of manned spacecraft

Abstract

The invention provides a virtual simulation and evaluation method for in-orbit maintenance of a manned spacecraft. The method comprises the following steps: step 1. establishing a digital-human model necessary for in-orbit maintenance simulation; step 2. establishing an maintenance operation module necessary for the in-orbit maintenance simulation; step 3. carrying out virtual simulation on an in-orbit maintenance process; and step 4. evaluating the visibility, reachability and comfort of a virtual simulation result of the in-orbit maintenance process. The step 3 comprises: establishing a three-dimensional model necessary for the maintenance simulation, wherein the three-dimensional model comprises a spacecraft three-dimensional model, a maintenance tool three-dimensional model and a three-dimensional model of an auxiliary maintenance facilities; establishing a virtual simulation scene; introducing the three-dimensional model and the digital-human model into the virtual simulation scene, and arranging the same in place; and establishing a simulation script of the in-orbit maintenance process according to an in-orbit maintenance process scheme, and carrying out virtual simulation on the in-orbit maintenance process. The virtual simulation and evaluation method provided by the invention can be used for accurately simulating the in-orbit maintenance operation and avoiding the high cost of a flume experiment.

Description

technical field [0001] The invention relates to a virtual simulation and evaluation method for on-orbit maintenance of a manned spacecraft. Background technique [0002] The "Mir" space station has been in orbit for 15 years. The time spent by astronauts performing maintenance tasks accounts for about 75% of the total working time, and the time spent by astronauts performing maintenance tasks on the International Space Station accounts for about 32% of the total working time. It can be seen that on-orbit maintenance It is a necessary means to ensure the long life and highly reliable operation of manned spacecraft in orbit. On-orbit maintenance includes in-cabin maintenance and out-of-cabin maintenance, and the repaired products include batteries, electronic stand-alone machines, control moment gyroscopes, and solar wings. [0003] When the spacecraft is in orbit, the object is in a state of weightlessness, and the actions of astronauts in space are difficult to control. Man...

AI Technical Summary

Problems solved by technology

The traditional method is to use a neutral buoyancy tank to simulate a weightless environment, but the disadvantages of this method include high initial cost, high cost of a single test, long test period, an

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