Spatial position simulation and calibration method

Abstract

The invention discloses a spatial position simulation and calibration method. The method includes: utilizing a laser beam reflected by a plane mirror to perform space angle calibration between models A and B and an engine, in other words, replacing an axis of the engine with the laser beam, mounting the plane mirror on a plane perpendicular to the axis, if the laser is not perpendicular to the plane, forming an included angle between an incident laser beam and the reflected laser beam, and determining size of angular deviation by comparing positions of the incident laser beam and the reflected laser beam at a remote location; utilizing an engine center calibrator to align the model B and the engine, in other words, enabling the laser beam to pass through a center hole of the engine enter calibrator, adjusting a three-dimensional mobile device to enable the laser beam passing through the center hole to irradiate the center of the model A, and completing spatial position simulation and calibration between the models A and B. the method has the advantages that relative position adjustment of the engine and test piece models which are contactless is realized in three-dimensional space conveniently, accuracy of adjustment is high, and the angular deviation and positional deviation between the modes are not more than 0.1 degree and 0.2mm respectively.

Description

technical field [0001] The invention relates to a space position simulation and calibration method, which is suitable for ground simulation tests such as lunar take-off of lunar exploration spacecraft, separation of stars and arrows, etc., and can also be used for other space position calibration. Background technique [0002] The lunar take-off of the lunar probe and the separation of the star and the rocket are all important links in the space mission process. In order to ensure the successful completion of the space mission, it is necessary to conduct ground tests to verify these processes, and one of the keys to these ground simulation tests is the relative position in space. For example, when the lunar exploration spacecraft takes off from the lunar surface, the ascender is separated from the landing platform, and the ascender leaves the lunar surface and returns to the earth relying on the thrust of the engine. When the ground simulation test is carried out for this pro...

AI Technical Summary

Problems solved by technology

However, there is no universal high-precision spatial calibration method for multiple objects without direct contact.

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