Jet-vane simple load simulation and testing device for thrust vector engine

Abstract

The invention discloses a jet-vane simple load simulation and testing device for a thrust vector engine, and the device comprises an improved thrust vector engine jet pipe, a steering engine transmission load mechanism and a testing apparatus. The improved thrust vector engine jet pipe is formed in a manner that four groups of first and second rectangular plates which are arranged in central symmetry in the axial direction of the jet pipe are welded at the periphery of an existing thrust vector engine jet pipe. An electric steering engine in the steering engine transmission load mechanism drives a vane to deflect through a vane connecting rod, so as to simulate the gas load of an actual jet vane through the generated spring torque. The testing apparatus comprises a U-shaped supporting plate, a shaft coupler and a torque sensor, wherein the torque sensor can measure the hinge torque at the vane in real time. The device can effectively reduce the testing cost of the jet vane of the thrust vector engine, is simple and reliable in structure, and is high in testing precision of the dynamic performances.

Description

technical field [0001] The invention belongs to the field of engine testing, and in particular relates to a simple analog load and testing device for a thrust vectoring engine gas rudder. Background technique [0002] Most of the mature thrust vectoring engine gas rudder test systems developed in China directly perform performance tests on the gas rudder during the ignition test of the thrust vectoring engine. Since the gas load generated during the ignition test changes with the gas flow rate, the test data Large changes, not accurate enough; ignition test will generate a lot of high temperature, need to carry out thermal protection treatment on the test device or use other transmission mechanism to transmit test torque, thermal protection safety performance is unreliable, easy to cause ablation of the test device, and too much An improved transmission mechanism will lead to an increase in the error of the test data, which is not conducive to the derivation of the test data...

AI Technical Summary

Problems solved by technology

[0002] Most of the mature thrust vectoring engine gas rudder test systems developed in China directly perform performance tests on the gas rudder during the ignition test of the thrust vectoring engine. Since the gas load generated during the ignition test changes with the gas flow rate, the test data Large changes, not accurate enough; ignition test will generate a lot of high temperature, need to carry out thermal protection treatment on the test device or use other transmission mechanism to transmit test torque, thermal protection safety performance is unreliable, easy to cause ablation of the test device, and too much The transmission mechanism will lead to an increase in the error of the test data, which is not conducive to the conclusion of the test data

A large amount of high-temperature gas during the ignition test will ablate the rudder, and the same test device cannot be used for multiple experiments. The test process consumes a lot of fuel, which generally makes the test cost too high

[0003] The passive electric load simulator with torque motor as the actuator designed by Huazhong Measurement and Control Technology Co., Ltd. represents the advanced level. This kind of system has strong signal tracking ability and high load resolution, but its structure is complicated, huge and expensive. , not suitable for scientific research training in ordinary universities and product performance testing for small and medium-sized enterprises

[0004] Yu Chenglin proposed a thrust vector gas rudder simulation loading system in the article "The Force Analysis and Simulation Realization of Thrust Vector Steering Gear" (Henan University of Science and Technology, 2013). This system is a complete simulation of the gas rudder, using torque motor , lead screw and guide rail to simulate the deflection of the gas rudder rudder, but it is separated from the gas rudder body, which cannot truly show the change process of the thrust vector engine gas rudder, and lacks the application background

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