A solid attitude control power system test bench device

Abstract

A test bed device for a solid attitude-control power system comprises a mounting platform (1), a test support (2) and an adjustable mounting platform (3), wherein the mounting platform (1) is matched and connected with an attitude-control engine, and the adjustable mounting platform (3) is arranged on the test support (2); high-pressure gas produced by the attitude-control engine is ejected from a thruster (23) on the adjustable mounting platform (3) through a gas pipe, and a test device on the adjustable mounting platform (3) completes a test. The test bed device has the advantages as follows: the gas pipe is fixed by a gas pipe fixing device along with the thruster, so that effects caused by jumping and deflection of the gas pipe due to high-temperature high-pressure gas on the test during testing by the test bed are prevented; a force measuring contact and a heat insulating plate are made of machinable ceramic, a good heat insulating role is played, and damage caused by the high temperature of the thruster through heat transfer to a test sensor is prevented; the accuracy and the credibility of test results are greatly improved.

Description

technical field [0001] The invention relates to a test bench, in particular to a solid attitude control power system test bench device. Background technique [0002] The core component of the solid attitude control power system is the attitude control engine, which is mainly used for the attitude control of space vehicles such as rockets and satellites. The force, which constitutes a moment relative to the center of mass of the spacecraft, prevents the longitudinal axis of the spacecraft from deviating from the given orbit of the initial segment. The magnitude of the jet flow control force of the attitude control engine and its variation with time indicate that the performance of the engine directly affects the flight performance of the spacecraft. In the test of attitude control engine, the control thrust is one of the most important parameters to be measured. The thrust measurement of the attitude control engine is inseparable from the thrust measurement test bench. [...

AI Technical Summary

Problems solved by technology

During calibration, the transmission line from the standard force source (calibration sensor and loader) to the load cell and the force transmission line from the thrust generated by the engine to the working sensor when the engine is running are mostly inconsistent, so that the measured engine thrust differs from the true value

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