Laminated plate microstructure damage detector based on vibration excitation

Abstract

The invention provides a laminated plate microstructure damage detector based on vibration excitation. The laminated plate microstructure damage detector comprises a test bed, a detection mechanism, aclamping mechanism, a translation mechanism, a cooling mechanism and a lifting mechanism; the detection mechanism is installed on the test bench and comprises a vibration exciter body, a hammer handle, a hammer head, a supporting seat, a supporting block, a laminated plate, a cooling cover, a strip-shaped opening and an infrared thermal imager; the vibration exciter body is installed on the upperside wall of the test bed, the hammer handle is installed at the output end of the vibration exciter body, and the hammer head is fixedly installed at the end, away from the vibration exciter body, of the hammer handle; the supporting base is installed on the upper side wall of the test bed, and the supporting block is fixedly installed on the upper side wall of the supporting base. The laminatedplate microstructure damage detector method based on vibration excitation provided by the invention has the advantages of being convenient and rapid in detection work, high in efficiency, good in stability and high in data accuracy.

Description

technical field [0001] The invention relates to the technical field of vibration excitation, in particular to the detection of laminated plate microstructure damage based on vibration excitation. Background technique [0002] In recent years, with the rapid development of the national economy, the development of technologies such as mechanical processing and material preparation has been greatly promoted, and more and more new functional composite materials have emerged. Composite materials are an important part of the field of new materials. Compared with traditional materials, composite materials have a series of superior properties such as strong designability, high specific strength and modulus, good fatigue fracture resistance, and structural and functional integration. Functional materials and structural materials that are difficult to be replaced by other materials are indispensable basic materials for the development of modern industry, national defense and science a...

AI Technical Summary

Problems solved by technology

[0004] Before the composite material is put into use, its various properties need to be tested, especially its microstructure damage detection, which ensures the safety of the composite material. Now the composite material has been tested for microstructure damage, mainly through vibration excitation. In the detection process, it is necessary to move the laminate at intervals to perform hammering detection on multiple points. The operation is more troublesome. At the same time, the laminate will be offset during the hammering process, which reduces the detection data. the accuracy of

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