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Ultrasonic transducer clamp for detecting concave R region of composite material structure

An ultrasonic transducer and composite material technology, which is applied in the analysis of materials, the use of sonic/ultrasonic/infrasonic waves for material analysis, instruments, etc. Stable position coupling and other issues to avoid missed detection and misjudgment, and improve the detection effect

Active Publication Date: 2013-12-18
BEIJING AERONAUTICAL MFG TECH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the attitude and position of the transducer are completely controlled by the operator’s hand-held suspension, it is difficult to ensure a stable positional coupling between the transducer and the surface of the concave R zone of the tested composite material in the entire axial and arc directions. Therefore, it is difficult to ensure that the transducer forms a stable ultrasonic detection signal in the concave R area of ​​the composite material to be detected, which seriously affects the detection effect and easily leads to missed detection and misjudgment

Method used

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  • Ultrasonic transducer clamp for detecting concave R region of composite material structure
  • Ultrasonic transducer clamp for detecting concave R region of composite material structure
  • Ultrasonic transducer clamp for detecting concave R region of composite material structure

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Embodiment

[0019] The included angle formed by the adjacent two sides of the concave R area of ​​the tested composite material structure 1 is 90°, and the following ultrasonic transducer installation guide seat 3 is selected, the left surface 3f of the installation guide seat 3 and the bottom surface of the installation guide seat 3 The included angle of surface 3e is 90°. The ultrasonic instrument for composite materials is the FCC-B instrument produced by Beijing Aeronautical Manufacturing Engineering Research Institute. After a series of practical engineering applications on multiple batches and specifications of the actual composite material structure concave R area ranging from 3000mm to 5000mm in length and 1000mm to 3000mm in width, good actual detection results have been achieved.

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Abstract

The invention belongs to a nondestructive detection technology for a composite material structure, and relates to an ultrasonic transducer clamp for detecting a concave R region of a composite material. The ultrasonic transducer clamp is characterized by consisting of a transducer mounting guide holder (3), a connecting joint (4) and a coupled water pipe (5). Through the ultrasonic transducer clamp for detecting the concave R region of the composite material structure, a transducer and the surface of the concave R region of the detected composite material can form stable position coupling in the whole axial direction and arc direction, so that stable ultrasonic detection signals are formed, the detection effect is improved, and missing detection or error judgment is avoided.

Description

technical field [0001] The invention belongs to the composite material structure non-destructive testing technology, and relates to an ultrasonic transducer fixture used for testing the concave R area of ​​the composite material structure. Background technique [0002] With the wide application of composite materials in aviation, aerospace, civil aviation, transportation, construction, electric power and other industrial fields, many engineering structures and complex structures based on structural design and structural manufacturing of composite materials have been continuously applied in engineering. Or load-carrying considerations, a variety of geometrically concave R-zones will be formed in the transition zone or connection part of this type of structure, which is an area that is difficult to access during non-destructive testing. These concave R-zones play a very important role in structural connection, load distribution and bearing in structures such as composite mater...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N29/22
Inventor 刘松平刘菲菲白金鹏曹正华李乐刚孟秋杰史俊伟
Owner BEIJING AERONAUTICAL MFG TECH RES INST