最適化法を応用した超音波探傷の高効率化

概要

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In order to improve the efficiency of ultrasonic inspection based on the wave propagation visualization technique, we have proposed a new mathematical approach for the ultrasonic inspection by employing the optimization method. The main idea of this study is to focus on two issues, i.e., how to select the searching points in inspection and how to determine the route to visit all the searching points. We have numerically and experimentally investigated the validity and properties of the new method, by comparing with the conventional one. As a result, it is shown that the efficiency of the ultrasonic inspection is significantly improved by the new method. Moreover, based on the obtained results, some conditions for improving the inspection efficiency are demonstrated, which should be appropriately chosen by inspectors. Finally, the obtained results indicate that the proposed new method in the present study has the advantages in the efficiency of the ultrasonic inspection in practical applications.