Simulation test device for thrust force of large-thrust-force double-pendulum engine

A technology of double pendulum engine and simulation test, which is applied in the direction of engine test, measuring device, machine/structural component test, etc., to achieve the effect of simple structure, convenient adjustment, and convenient disassembly

Active Publication Date: 2016-03-09
BEIJING RES INST OF PRECISE MECHATRONICS CONTROLS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the double-pendulum engine with a thrust of 70T and fueled by liquid hydrogen and liquid oxygen, the above-mentioned device cannot meet its high-thru

Method used

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  • Simulation test device for thrust force of large-thrust-force double-pendulum engine
  • Simulation test device for thrust force of large-thrust-force double-pendulum engine
  • Simulation test device for thrust force of large-thrust-force double-pendulum engine

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Experimental program
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Embodiment Construction

[0024] Such as figure 1 As shown, a high-thrust double pendulum engine thrust simulation test device, the device includes two bearing lugs 2, engine frame 3, bolts 4, base 5, swing cross shaft 6, backup nut 7, gimbal 8. Bolt 9, two wire ropes 10, connecting block 11, back-up nut 12, back-up nut 13, first pin shaft 14, first joint bolt 15, back-up nut 16, adjustment pull rod 17, second joint bolt 18 , back-up nut 19, the second bearing pin 20, the 3rd bearing pin 21, lever 22 and loading hydraulic cylinder 23; The two ends of steel wire rope 10 have thread;

[0025] The engine 1 is connected to the gimbal 8 through the swing cross shaft 6, the gimbal 8 is fixedly connected to the engine frame 3, and the engine frame 3 is fixedly connected to the base 5;

[0026] Two load-bearing lugs 2 are fixedly connected to both sides of the main load-bearing part of the engine 1, and the upper ends of the two steel wire ropes 10 are respectively threaded with one load-bearing lug 2;

[00...

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Abstract

The invention relates to a simulation test device for a thrust force of a large-thrust-force double-pendulum engine, and particularly to a test device which can truly simulate the thrust force of the double-pendulum engine in flight of a rocket, wherein the large thrust force is not less than 70T. The simulation test device comprises the components of two force bearing ears, an engine frame, a base, a swinging cross shaft, a gimbal mount, two wire ropes, a connecting block, a first pin, a first joint bolt, an adjusting pull rod, a second joint bolt, a second pin, a third pin, a lever and a loading hydraulic cylinder. Two ends of each wire rope is threaded. According to the simulation test device, connection between the engine body and the loading connecting block is realized through the wire ropes which are provided with threads; and deformation of the wire rope is used for resisting an effect caused by threaded connection at two ends of each wire rope in the bidirectional swinging process of the engine. According to the simulation test device, a lever mechanism is used for realizing thrust force loading, and loading of a 70T thrust force is realized by means of a relatively small hydraulic force. A simple and reliable structure is realized.

Description

technical field [0001] The present invention relates to a high-thrust double-pendulum engine thrust simulation test device, in particular to a test device capable of truly simulating the thrust of a double-pendulum engine during rocket flight. The high thrust means that the thrust is not less than 70T. Background technique [0002] For the engine, the deformation of the engine and the engine frame, the force (friction force, elastic force) when the engine is swinging, and the engine stiffness are very different when the engine has thrust (engine ignition work) and no thrust. Ideally, when the engine is tested, especially when the power system is tested and ignited, the thrust vector verification of the engine is the most realistic, but it is limited by the cost (the cost of a single hot test exceeds 5 million, and the power test is an astronomical figure), safety (engine ignition The environment is extremely harsh) and other factors, the number of times in the real environme...

Claims

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Application Information

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IPC IPC(8): G01M15/00G01M15/02
CPCG01M15/00G01M15/02
Inventor 景光辉张晓莎赵迎鑫杨霖宁振雷
Owner BEIJING RES INST OF PRECISE MECHATRONICS CONTROLS
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