Attitude control engine thrust measuring device

A measurement device and engine technology, which is applied in the measurement device, jet engine test, gas turbine engine test, etc., can solve the problems of low measurement accuracy, large size, sensor damage, etc., achieve high calibration accuracy, improve force value transmission accuracy, The effect of increasing the force value transfer ratio

Active Publication Date: 2020-04-21
XIAN AEROSPACE PROPULSION TESTING TECHN INST
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Problems solved by technology

[0003] The purpose of the present invention is to solve the problems of large size, low measurement accuracy and damage to the movable frame and sensor of the existing attitude control engine test device, and to provide a thrust measurement device for the attitude control engine. Thrust measurement in ground and high-altitude simulation tests of attitude control engine

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  • Attitude control engine thrust measuring device
  • Attitude control engine thrust measuring device
  • Attitude control engine thrust measuring device

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Embodiment Construction

[0033] The content of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0034] In order to realize the thrust measurement in the ground and high-altitude simulation tests of the 20kN level high-pressure attitude control engine, the invention provides a thrust measurement device for the attitude control engine. The measuring device adopts a one-point load-bearing structure with a single sensor to measure the thrust. The connection between the moving frame and the fixed frame adopts the front and rear mountain-shaped spring sheet structure. It adopts an automatic thrust in-situ calibration system composed of a standard force sensor and an electric cylinder. Afterburner calibration, the transmission path of the calibration force value is consistent with the test conditions. Through in-situ calibration, the influence of propellant supply pipelines, cooling pipelines, and measurement cables on th...

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Abstract

The invention relates to an attitude control engine thrust measuring device, thereby solving problems that the existing attitude control engine testing device is large in size and low in measuring precision and can damage a movable frame and a sensor. According to the device, the center lines of a movable frame, a force source loading unit, a force measuring unit and a pre-tightening force deviceare coaxially arranged; a fixed frame is used for bearing an engine thrust; the movable frame is used for mounting an engine and transmitting the thrust generated by the engine; the force measuring unit comprises a steady-state force sensor and a bearing pressure head, the steady-state force sensor is arranged on a measuring force bearing wall and used for measuring the force transmitted by the movable frame, and the bearing pressure head transmits the force of a movable frame front flange to the steady-state force sensor; the force source loading unit is used for realizing standard force source loading of the steady-state force sensor; and the pre-tightening force device is arranged between a movable frame rear flange and the measuring force bearing wall. Therefore, a gap between the movable frame structure and the measuring force sensor is eliminated, and a certain pre-tightening force is applied at the same time.

Description

technical field [0001] The invention relates to the field of aerospace engine testing, in particular to an attitude control engine thrust measurement device, which is applied to thrust in-situ calibration and measurement in 20kN attitude control engine high-altitude simulation tests. Background technique [0002] 20kN is a relatively large thrust level in the attitude control engine test. Because the high-altitude simulation test needs to be considered, the structure of the thrust frame should not be too large. This requires the thrust measurement device to withstand the 20kN thrust while the deformation of the device is as small as possible, and the deformation is controlled within Within 0.05mm. In the existing attitude control engine test, the engine is directly connected to the measuring force sensor, or the engine is connected to the moving frame through an adapter frame, and the moving frame is connected to the fixed frame through a spoke spring. For the former connec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L5/00G01M15/14
CPCG01L5/0038G01M15/14
Inventor 寇鑫李广会宫厚娟赵政社周献齐赵飞何小军刘阳赵明李亮严岚黄鹏辉华程张鹏王亚楠
Owner XIAN AEROSPACE PROPULSION TESTING TECHN INST
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