Utilization of departmental computing GRID system for development of an artificial intelligent tapping inspection method, tapping sound analysis

Authors:
Seung Jo Kim;Joon-Seok Hwang;Chang Sung Lee;Sangsan Lee
Affiliations:
Seoul National University, Korea and San 56-1, Shilliom-dong Kwanak-gue, Seoul, Korea;Seoul National University, Korea;Seoul National University, Korea;High Performance Computing and Networking Supercomputing Center, KISTI, Korea and Korean Institute of Science and Technology Information, Taejon, Korea
Venue:
Proceedings of the 2002 ACM/IEEE conference on Supercomputing
Year:
2002

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Abstract

Tapping Sound Analysis is a new NDE method, which determines the existence of subsurface defects by comparing the tapping sound of test structure and original healthy structure. The tapping sound of original healthy structure is named sound print of the structure and is obtained through high precision computation. Because many tapping points are required to obtain the exact sound print data, many times of tapping sound simulation are required. The simulation of tapping sound requires complicated numerical procedures. Departmental Computing GRID system was utilized to run numerical simulations. Three cluster systems and one PC-farm system comprise DCG system. Tapping sound simulations were launched and monitored through Globus and CONDOR. A total of 160 Tera floating-point (double-precision) operations was performed and the elapsed time was 41,880 sec. From the numerical experiments, Grid computing technology reduced the necessary time to make sound print database and made TSA a feasible and practical methodology.