Ultrasonic detection method for bonding defects of web and girder after mold clamping of wind power generation blades

A technology for wind power generation blades and detection methods, which is applied in the direction of using sound waves/ultrasonic waves/infrasonic waves to analyze solids, instruments, and analysis materials, etc., which can solve the problem of affecting the mechanical properties and integrity of blades, reducing the working life of blades, large dispersion of product quality, etc. problems, to achieve the effect of improving monitorability

Inactive Publication Date: 2018-10-02
苏州天顺复合材料科技有限公司
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  • Abstract
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  • Application Information

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Problems solved by technology

Since there are many factors that affect the structural integrity of composite materials, small differences in many process parameters will lead to defects, resulting in a large dispersion of product quality. These defects seriously affect the mechanical properties and integrity of the blade.
The design of wind power blades needs to meet the working life of more than 20, and the existence of defects will further expand under the influence of complex alternating loads during the operation of the blades, resulting in local weak areas, and ultimately reducing the working life of the blades

Method used

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  • Ultrasonic detection method for bonding defects of web and girder after mold clamping of wind power generation blades
  • Ultrasonic detection method for bonding defects of web and girder after mold clamping of wind power generation blades
  • Ultrasonic detection method for bonding defects of web and girder after mold clamping of wind power generation blades

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specific Embodiment

[0034] Specific embodiment: the web to be inspected and the beam bonding workpiece 1 ( figure 1 shown) includes a blade shell 11, an adhesive layer 12, and a web 13, and the blade shell 11 and the web 13 are bonded by an adhesive (adhesive layer 12), so as to improve the blade's tolerance to shear force; Test block 2 ( figure 2 shown) also includes the blade shell 21, the adhesive layer 22, the web 23 and the through hole 24, wherein the material of the blade shell 21, the adhesive layer 22, and the web 23 of the test block 2 is consistent with the web to be inspected and The materials of the blade shell 11 , the adhesive layer 12 and the web 13 in the beam bonding workpiece 1 are the same. There is a through hole 24 at the position of the adhesive layer 22 and the web 23 on the test block 2, and the through hole 24 meets the minimum process defect requirement. According to step 5 of the present invention, the probe 3 is placed on the test block 2 to calibrate the ultrasoni...

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Abstract

The invention relates to an ultrasonic detection method for bonding defects of a web plate and a girder after the mold clamping of wind power generation blades. The method comprises the following steps of: the test blocks are made according to the workpiece bonding material between web and girder to be inspected, the calibration defect is made on the test block according to the relevant process standard; the specification of the probe is selected according to the workpiece bonding material between the web and the girder to be inspected; the probe is connected with an ultrasonic detector; the probe is arranged on the test block, and the ultrasonic detector is calibrated according to the reflection waveform; and the probe is arranged on the web and the girder to be detected to be moved backand forth on the blade shell of the workpiece. The ultrasonic detection method greatly improves the monitoring, the detection accuracy and the detection efficiency of the bonding quality of the web and the girder.

Description

technical field [0001] The invention relates to a wind power generation blade, in particular to an ultrasonic detection method for bonding defects between a web plate and a girder after the wind power generation blade is molded. Background technique [0002] With the continuous improvement of the power of a single wind turbine, the blades of wind power generation are also getting bigger and bigger, and the accompanying materials, process level and quality requirements are also getting higher and higher. Composite materials are widely used in wind power blades due to their high specific strength, specific stiffness, good fatigue resistance and corrosion resistance. Since there are many factors that affect the structural integrity of composite materials, small differences in many process parameters will lead to defects, resulting in a large dispersion of product quality. These defects seriously affect the mechanical properties and integrity of the blade. The design of wind po...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N29/04
CPCG01N29/04G01N2291/023
Inventor 贺安源
Owner 苏州天顺复合材料科技有限公司
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