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M. Yamamoto, T. Miyachi, M. Takagaki, T. Yagi, "Evaluation of Real-time Crack Monitoring Method for Railway Axle and Bogie Frame", in J. Pombo, (Editor), "Proceedings of the Second International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Stirlingshire, UK, Paper 170, 2014. doi:10.4203/ccp.104.170

Keywords: real-time crack monitoring, leak-before-break concept, railway axle, bogie frame.

Summary

This paper discusses a noble real-time crack monitoring method, applying pressure sensor, to prevent failure of railway axles or bogie frames. This method is based on the leak-before-break (LBB) concept. The pressurized air in the hollow can leak through the crack that propagates to the inner surface of the hollow. In this paper, the application of the LBB concept for axles, and the safety margin of this method were evaluated using an experimental and analytical approach. Experimental and analytical consequences indicated that the detectable crack size for this monitoring method was much less than the size which causes fractures of axles or bogie frames and validated the availability of this monitoring method.

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Front Page Browse CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Proceedings ISSN 1759-3433 CCP: 104 PROCEEDINGS OF THE SECOND INTERNATIONAL CONFERENCE ON RAILWAY TECHNOLOGY: RESEARCH, DEVELOPMENT AND MAINTENANCE Edited by: J. Pombo Paper 170 Evaluation of Real-time Crack Monitoring Method for Railway Axle and Bogie Frame M. Yamamoto, T. Miyachi, M. Takagaki and T. Yagi Railway Technical Research Institute, Tokyo, Japan doi:10.4203/ccp.104.170 purchase the full-text of this paper Full Bibliographic Reference for this paper M. Yamamoto, T. Miyachi, M. Takagaki, T. Yagi, "Evaluation of Real-time Crack Monitoring Method for Railway Axle and Bogie Frame", in J. Pombo, (Editor), "Proceedings of the Second International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Stirlingshire, UK, Paper 170, 2014. doi:10.4203/ccp.104.170 Keywords: real-time crack monitoring, leak-before-break concept, railway axle, bogie frame. Summary This paper discusses a noble real-time crack monitoring method, applying pressure sensor, to prevent failure of railway axles or bogie frames. This method is based on the leak-before-break (LBB) concept. The pressurized air in the hollow can leak through the crack that propagates to the inner surface of the hollow. In this paper, the application of the LBB concept for axles, and the safety margin of this method were evaluated using an experimental and analytical approach. Experimental and analytical consequences indicated that the detectable crack size for this monitoring method was much less than the size which causes fractures of axles or bogie frames and validated the availability of this monitoring method. purchase the full-text of this paper (price £20) go to the previous paper go to the next paper return to the table of contents return to the book description purchase this book (price £65 +P&P)
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