A coordinate converter for measuring the mass characteristics of spacecraft

By designing a coordinate measuring machine for measuring the mass characteristics of spacecraft, and utilizing translation, pitch, and rotation mechanisms, the measurement of mass characteristic parameters in all directions can be completed in one installation on the coordinate measuring machine. This solves the problems of complexity and safety hazards in traditional testing methods, and improves testing efficiency and accuracy.

CN116558418BActive Publication Date: 2026-06-30HARBIN INST OF TECH +1
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Patent Information

Application Number
CN202310554013.2
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-05-16
Publication Date
2026-06-30
Estimated Expiration
2043-05-16

AI Technical Summary

Technical Problem

Traditional spacecraft mass characteristic testing requires multiple hoisting and flipping operations on various devices, which is complex and poses safety hazards, and the inertial product measurement process has limitations.

Method used

A coordinate measuring machine for measuring the mass characteristics of spacecraft was designed, which includes translation, pitch and rotation mechanisms. The mass characteristic parameters can be measured in all directions by installing them on the coordinate measuring machine once. High-precision control is achieved by using translation motors, electric cylinders and rotation motors in combination with components such as grating rulers and circular grating encoders.

Benefits of technology

It enables the measurement of omnidirectional mass characteristic parameters with a single installation, improving testing efficiency and safety. Furthermore, it improves measurement accuracy by calculating the product of inertia data through rotational inertia in different states.

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Abstract

This invention discloses a coordinate measuring machine for measuring the mass characteristics of spacecraft, comprising a translation mechanism, a pitch mechanism, and a rotation mechanism. A control cabinet is mounted on one side of the mounting base connected to the coordinate measuring machine's adapter plate. The fixed frame of the translation mechanism is hinged to the pitch mechanism, and the rotation mechanism is hinged to the middle of the pitch mechanism. This invention provides a coordinate measuring machine for measuring the mass characteristics of spacecraft with the above structure. It is simple to operate; the spacecraft can be positioned and installed on the coordinate measuring machine once, and all mass characteristic parameters can be measured with high accuracy.
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Citation Information

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