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, and difficulty in powering up underwater. With the development of computer virtual reality technology, virtual Simulation technology for maintainability verification has been adopted by more and more countries

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