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Test system and method for dynamic impact mechanical performance test of light aircraft structure

A technology of light aircraft and impact mechanics, which is applied in the field of test systems for dynamic impact mechanical performance testing of light aircraft structures, can solve the problems of loading and testing of the test system that cannot meet the requirements of general light aircraft overall impact test tests, and neglect the aircraft body, etc. To achieve the effect of high reliability, firm clamping and increased friction

Active Publication Date: 2022-07-22
CHINA AIRPLANT STRENGTH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The current horizontal impact test in the dynamic impact mechanical performance test of light aircraft structure is only for aviation seats or car seats, limited by the size and load of the horizontal impact test bench, the loading and testing of the test system cannot meet the requirements of general light aircraft. The impact test requirements of the whole aircraft ignore the factors of the aircraft body, and there is no relevant content in the domestic general light aircraft horizontal impact test research

Method used

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  • Test system and method for dynamic impact mechanical performance test of light aircraft structure
  • Test system and method for dynamic impact mechanical performance test of light aircraft structure
  • Test system and method for dynamic impact mechanical performance test of light aircraft structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] like figure 1 As shown, the test system for the dynamic impact mechanical performance test of light aircraft structure includes a trolley 1, a test fixture 2, a measurement control assembly 3, a lighting assembly 4 for providing illumination for the test system, a camera measurement assembly 5, and a test The light aircraft test piece 6 on the fixture 2, and an aviation dummy is placed in the light aircraft test piece 6;

[0038] The test fixture 2 includes a lower connection panel 20 arranged on the upper end of the trolley 1, an upper connection panel 21 hinged to one end of the lower connection panel 20, an angle adjustment bracket assembly 22 arranged between the upper connection panel 21 and the lower connection panel 20, The fuselage connecting mechanism 23 is arranged on the upper end of the upper connecting panel 21, and the light aircraft test piece 6 is installed on the upper end of the upper connecting panel 21 through the fuselage connecting mechanism 23;

...

Embodiment 2

[0047] This embodiment differs from Embodiment 1 in that:

[0048] like Figure 5 As shown, the opposite sides of the two clamping top blocks 235 are V-shaped.

Embodiment 3

[0050] This embodiment differs from Embodiment 1 in that:

[0051] like Image 6 As shown, opposite sides of the two clamping top blocks 235 are U-shaped.

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Abstract

The invention provides a test system and method for a dynamic impact mechanical property test of a light aircraft structure, and belongs to the technical field of aircraft testing. The test system comprises a trolley, a test tool clamp, a measurement control assembly, an illumination assembly used for providing illumination for the test system, a camera shooting measurement assembly and a light aircraft test piece arranged on the test tool clamp. An aviation dummy is placed in the light aircraft test piece. The trolley is used as a test platform, the acceleration curve of a light aircraft test piece can be accurately controlled, the test tool clamp can meet the requirements of two test working conditions of 0 degree and 60 degrees and can also meet the working condition requirements of other angles, and the reliability is high; the test system integrates advanced test technologies of a measurement control assembly and a camera measurement assembly, completes synchronous triggering of various devices, can meet the requirements of a horizontal impact test of a general light aircraft, and has the advantages of high operability, low test risk and wide application prospect.

Description

technical field [0001] The invention belongs to the technical field of aircraft testing, in particular to a test system and method for testing the dynamic impact mechanical performance of a light aircraft structure. Background technique [0002] During the take-off and landing stage of the aircraft, the impact load on the body has the characteristics of long stroke and large magnitude. At this time, the weak parts of the body structure often generate large impact stress, resulting in damage to the aircraft structure, thus affecting the safety of passengers. Safety is the primary factor to consider in aircraft design. Safety includes occupant safety and body structure safety. In survivable flight accidents, aircraft body and aviation seats play a vital role in the protection of occupants. [0003] In order to detect whether the aircraft structure complies with the airworthiness standard of the acceleration load waveform and ensure the safety of the aircraft and personnel, it ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M7/08B64F5/60G01N3/02G01N3/04G01N3/06G01N3/307B25B11/00
CPCG01M7/08G01N3/307G01N3/04G01N3/068G01N3/02B64F5/60B25B11/00G01N2203/0019G01N2203/0044G01N2203/0641G01N2203/0676
Inventor 符伟超王彬文惠旭龙杨欢
Owner CHINA AIRPLANT STRENGTH RES INST
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