Nondestructive Testing Method for Curved Surfaces Based on the Multi-Gaussian Beam Model

Zongxing Lu*, Chunguang Xu, Dingguo Xiao, Fanwu Meng

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)

Abstract

A nondestructive testing method for curved surfaces based on the multi-Gaussian beam model is proposed in this study. The multi-Gaussian beam model for composites coupled with water is introduced into an automatic ultrasonic testing system. A mathematical model of the received beam field is established to analyze the effect of different testing parameters on the receiving transducer. The normal vector can be calculated by variational methods to achieve the transmitting transducer’s position and orientation. The position and orientation of the receiving transducer can be achieved by coordinate transformation method. The simulation and experiments illustrate the validity and effectiveness of the proposed method. Experimental results indicate that the received signal is strong and measurement accuracy is high with the proposed method. The proposed method provides an effective solution to curved composite surface parts and would significantly benefit industrial development.

Original languageEnglish
Article number39
Pages (from-to)1-9
Number of pages9
JournalJournal of Nondestructive Evaluation
Volume34
Issue number4
DOIs
Publication statusPublished - 1 Nov 2015

Keywords

  • Coordinate transformation
  • Curved surface
  • Multi-Gaussian beam model
  • Path planning
  • Ultrasonic testing

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