Heat protection structure damage positioning method of near space aircraft
A positioning method and technology of positioning area, which can be used in instruments, material analysis using acoustic wave emission technology, processing response signals of detection, etc.
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[0016] In order to make the purpose, content, and advantages of the present invention clearer, the specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.
[0017] figure 1 Shown is a schematic diagram of positioning area division, figure 2 Shown is a flow chart of the damage location method for the thermal protection structure of a near-space vehicle, image 3 Shown is a schematic diagram of the peak-to-peak amplitude and the length of the wave packet changing with time, Figure 4 Shown is the acoustic emission signal and the signal map mapped to the displacement space, such as Figure 1 to Figure 4 As shown, in the C / SiC composite thermal protection structure arranged in blocks near the surface of the spacecraft, if the damage location is close to the connection interface between adjacent plates, due to the existence of positioning errors, the damage may be mislocat...
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