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A Shock Response Spectrum Generator Applied to Vertical Shock Testing Machine

An impact testing machine and impact response spectrum technology are applied in the aerospace field to achieve the effects of rapid attenuation, prevention of multiple collisions, and simple mechanism

Active Publication Date: 2019-09-24
NORTHWESTERN POLYTECHNICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The technical problem solved by the present invention is: aiming at the deficiency of the existing shock response spectrum test method, the present invention proposes a shock response spectrum generator based on a vertical impact testing machine to simulate the explosion shock environment

Method used

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  • A Shock Response Spectrum Generator Applied to Vertical Shock Testing Machine
  • A Shock Response Spectrum Generator Applied to Vertical Shock Testing Machine
  • A Shock Response Spectrum Generator Applied to Vertical Shock Testing Machine

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Embodiment Construction

[0030] see Figure 1-Figure 7 , an impact response spectrum generator based on a vertical impact testing machine, which is characterized in that the resonance response device is mainly composed of a resonance response plate, a guide rod, an excitation pad, an elastic cord and a damping buffer. The resonant response plate is suspended by elastic cords and its displacement direction is limited by guide rods. The excitation block in this embodiment is alloy steel. The main function of the elastic cord is to control the position of the resonance response plate and support it, so that the resonance response plate can have a relative impact speed with the excitation pad. The function of the guide rod is to limit the movement of the resonance response plate only in the vertical direction, and to ensure that the excitation load acts on the symmetrical position of the middle surface of the resonance response plate. The main function of the excitation pad is to excite the resonance re...

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Abstract

The invention relates to an impact response spectrum generator applied to a vertical impact tester. The impact response spectrum generator comprises an excitation cushion block, a frame assembly and aresonant response plate. The excitation cushion block is provided with a rubber pad at one end, has an end not provided with a rubber pad and fixedly connected to the falling tabletop of the verticalimpact tester, and is located at the center of the falling tabletop. The axis of the excitation cushion block is perpendicular to the falling tabletop. The resonant response plate is located in the frame assembly and is connected with the frame assembly through an elastic connecting member. When the frame assembly falls down with the falling tabletop, the end having the rubber pad of the excitation cushion block passes through the bottom of the frame assembly, collides with the resonant response plate, generates an explosion impact signal, and obtains an impact response spectrum. The impact response spectrum generator is simple in structure and convenient to disassemble, realizes double functions of the impact tester, reduces cost and improves simulation reliability.

Description

technical field [0001] The invention belongs to the technical field of aerospace, and relates to a new type of equipment for impact response spectrum test, in particular to an impact response spectrum generator installed and dropped on a vertical impact testing machine. The resonant response plate on the device generates an explosion shock signal, and the shock response spectrum is obtained. Background technique [0002] With the development requirements of high maneuverability and strong stability of modern aircraft and spacecraft, severe mechanical environment test is a necessary assessment link before the operation of aircraft and spacecraft. The harsh impact environment seriously threatens the safety of aircraft and spacecraft. In this environment, the weak structures and sensitive devices of the aircraft and spacecraft may be damaged at any time, resulting in the failure of the functions of the aircraft and spacecraft. How to effectively simulate the harsh impact envi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M7/08G01N3/313
Inventor 刘承骛温晶晶吴斌徐丰
Owner NORTHWESTERN POLYTECHNICAL UNIV