A deep space detector separation test device and test method thereof

Abstract

The invention provides a deep-space detector separation test device and a test method for eliminating the effect of gravity through constant moment follow-up control. The test device is composed of tower, low friction pulley A, low friction pulley B, spreader, high tensile rigidity steel wire rope, load cell, constant moment follow-up control system and protective rope. The low-friction pulley A is arranged on the tower, and the low-friction pulley B is fixed on the ground through a bracket; one end of the high tensile rigidity steel wire rope is connected to the load cell and the sling, and then bypasses the low-friction pulley A, Low-friction pulley B, the other end of which is connected to a constant-torque follow-up control system; the constant-torque follow-up control system is a closed-loop control system with a high-precision and fast-response torque motor as the core; the protection rope is connected to the separation body . Adopting this test device realizes that the deviation between the instantaneous pulling force on the steel wire rope and the rated pulling force is small, that is, the requirement of eliminating gravity is met.

Description

technical field [0001] The invention relates to the technical field of testing of deep space exploration spacecraft, in particular to a separation test device and a separation test method for eliminating the effect of gravity through constant-torque follow-up control. Background technique [0002] In order to complete complex deep space exploration tasks, the spacecraft needs to be composed of multiple cabins or aircraft. When a component needs to complete a specific task or its task needs to be discarded, it needs to be separated. [0003] During the design of the spacecraft separation system, the theoretical calculation and simulation analysis of kinematics and dynamics can be carried out by establishing a mathematical model. Due to the complex establishment of mathematical models for theoretical calculation and simulation analysis, and many calculation boundary conditions that are difficult to give accurately, it is still necessary to verify the reasonableness and correct...

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem that some spacecraft cannot carry out the horizontal state separation test and overcome the shortcoming that the hanging counterweight method can not eliminate the effect of gravity, the present invention proposes a separation test device and test method for eliminating the effect of gravity through constant torque follow-up control, which can make The tension of the separating body during the vertical upward movement has a small deviation from the force of the separating body, so as to meet the boundary conditions of weightlessness during real separation

Images