A Dynamic Monitoring Method for Measurement Data of Aircraft Structure Fatigue Test

A fatigue test and dynamic monitoring technology, applied in the field of aviation fatigue damage tolerance test, can solve problems such as poor operability, long time consumption, large amount of measurement data, etc., and achieve correct theoretical basis, difficult to determine the solution, and clear engineering concept Effect
CN109592075BActive Publication Date: 2022-04-19XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA
Publication Date
2022-04-19

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Abstract

The present invention relates to a kind of dynamic monitoring method of aircraft structure fatigue test measurement data, it is characterized in that, comprises the following steps: Step 1, carry out static strain displacement measurement; Step 2, establish static strain displacement measurement basic data template; Step 3, Carry out fatigue strain displacement measurement; step 4, establish a basic data template for fatigue strain displacement measurement; step 5, conduct a formal fatigue test and perform static error calculation and judgment; step 6, conduct a formal fatigue test and perform fatigue error calculation and judgment. The theoretical basis used in the invention is correct, the implementation steps are clear and simple, the computer is easy to control and implement, and the engineering concept is clear. The proposal of the invention solves the problem that it is difficult to determine whether the test runs normally in the aircraft structure fatigue test.
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Description

technical field

[0001] The invention belongs to the field of aviation fatigue damage tolerance test, in particular to a data dynamic monitoring method of aircraft structure fatigue test. Background technique

[0002] Aircraft structural fatigue tests generally have a long test period, a large amount of measurement data, difficult to monitor the test status, real-time monitoring and analysis of measurement data, and it is difficult to draw conclusions about whether the fatigue test is effective, continuous and stable.

[0003] In the fatigue test, for the analysis of measurement data, the conventional practice is to stop the test after a period of time is completed, and set aside time to analyze and judge the validity and stability of the measured strain and displacement in the past period. However, due to the huge amount of data, only relying on naked eye analysis and observation, many human factors are involved, the operability is not strong, and it takes too long. [0004...

Claims

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