Rocket-borne equipment vibration test system and test method for loading prestress

A vibration testing and prestressing technology, applied in vibration testing, machine/structural component testing, measuring devices, etc., can solve the problems of complex testing system, complicated actual operation, high testing cost, and achieve accurate measurement data, simple operation, The effect of the simple and easy test system

Pending Publication Date: 2021-02-19
XIAN AEROSPACE PROPULSION INST
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Problems solved by technology

[0003] The purpose of the present invention is to solve the problems of complex test system, high test cost and complex actual operation when the existing arrow-borne equipment simulates static load and dynamic load at the same time, and to provide a prestressed arrow-borne equipment vibration test system and experiment method

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  • Rocket-borne equipment vibration test system and test method for loading prestress
  • Rocket-borne equipment vibration test system and test method for loading prestress
  • Rocket-borne equipment vibration test system and test method for loading prestress

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Embodiment Construction

[0027] The content of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0028] The invention provides a prestressed arrow-borne equipment vibration test system and test method. The system and method can not only apply prestress during the arrow-borne equipment vibration test process, but also the size and direction of the prestress can be easily adjusted, and the test operation It is simple and can effectively simulate the working conditions that the arrow-borne equipment needs to apply static load and dynamic load at the same time.

[0029] like figure 1 As shown, the prestressed arrow-borne equipment vibration test system provided by the present invention includes a vibration table 8, a clamp 5, an elastic rope 3, a dynamometer 2, a force transmission rope 1, a gantry 6, a weight 7 and a fixed pulley 9 ; The arrow-borne equipment 4 is installed on the vibration table 8 after being transf...

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Abstract

The invention provides a rocket-borne equipment vibration test system and test method for loading prestress, and solves the problems of complex test system, high test cost and complex actual operationwhen the existing rocket-borne equipment simulates a static load and a dynamic load at the same time. The rocket-borne equipment vibration test system for loading the prestress comprises a vibrationtable, a clamp, an elastic rope, a dynamometer, a force transmission rope, a gantry frame, a weight and fixed pulleys, wherein rocket-borne equipment is mounted on the vibration table through the clamp, the vibration table is used for providing a test dynamic load, one end of the elastic rope is connected with the prestress loading position of the rocket-borne equipment, the other end of the elastic rope is connected with the dynamometer, the N fixed pulleys are arranged on the gantry frame and can move up and down or left and right along the gantry frame so as to adjust the loading directionof prestress, one end of the force transmission rope is connected with the dynamometer, the other end of the force transmission rope penetrates through the N fixed pulleys, and the weight is hung at the tail end and used for providing a test static load.

Description

technical field [0001] The invention belongs to the field of vibration tests of arrow-borne equipment, and in particular relates to a vibration test system and a test method for arrow-borne equipment loaded with prestress. Background technique [0002] During the flight of the rocket, the rocket-borne equipment needs to withstand the static load caused by its own overload, overload of connected equipment or installation, in addition to the dynamic load caused by aerodynamic noise or engine vibration. In order to assess the structural reliability of arrow-borne equipment under static and dynamic load environments in the laboratory, static tests or acceleration tests are generally used to assess the structural reliability under static loads, and vibration tests are used to assess structural reliability under dynamic load environments. Because the two tests are carried out separately, the structural defects of the arrow-borne equipment under the simultaneous action of static lo...

Claims

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Application Information

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IPC IPC(8): G01M7/02
CPCG01M7/02
Inventor 吴丹邓长华宋少伟雷诗莹王旭阳李小刚吴琼
Owner XIAN AEROSPACE PROPULSION INST
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