基于非线性声学参数的层析成像结构损伤定位方法、装置、终端及介质
By using a tomographic imaging method based on nonlinear acoustic parameters, nonlinear parameters are obtained and iteratively inverted, solving the problem of inaccurate damage localization in large-volume, multi-layered, and complex components in existing technologies, and achieving efficient imaging of hidden defects inside structures.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- HARBIN INSTITUTE OF TECHNOLOGY (SHENZHEN) (INSTITUTE OF SCIENCE AND TECHNOLOGY INNOVATION HARBIN INSTITUTE OF TECHNOLOGY SHENZHEN)
- Filing Date
- 2026-05-14
- Publication Date
- 2026-07-17
AI Technical Summary
Existing ultrasonic computational tomography technology is not sensitive to hidden defects inside structures in large-volume, multi-layered, and complex components, making it difficult to form effective imaging contrast.
Nonlinear acoustic parameters are used for tomographic imaging. By acquiring the measurement nonlinear parameters of each ultrasonic wave passing through the structure under test, a distance matrix is constructed, and iterative inversion is performed to determine the distribution of nonlinear parameters in order to locate the damage area.
It improves the ability to locate damage in large-volume, multi-layered, and complex components. Especially under conditions of long-distance propagation and complex propagation paths, it can more effectively reflect the nonlinear characteristics of internal damage and achieve efficient location of internal defects in large and complex components.
Smart Images
Figure CN122193414B_ABST