Theoretical and Simulated Analysis of Guided Waves Propagating in Fluid-Filled Pipes
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概要
- 論文の詳細を見る
To keep the safety of nuclear power plants, nondestructive evaluation (NDE) of cylindrical pipes, which carry hot water, is an issue of a great interest. Ultrasonic methods using bulk wave are commonly used for NDE of such pipes, however still having problems that the methods consume a long time to inspect large areas. On the other hand, NDE methods using guided wave should overcome this problem because the guided wave has a characteristic of long propagation range. Nevertheless, there have been few investigations to clarify the behavior of the guided wave in the fluid-filled cylindrical pipes. We therefore developed an analytical method to calculate particle displacement, and we compared the dispersion curves, cut-off frequencies, and particle displacements of guided waves propagating in the hollow pipe and the fluid-filled pipe.
- 2010-07-25
著者
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Sato Harumichi
National Institute Of Advanced Industrial Science And Technology(aist)
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Ogiso Hisato
National Institute for Advanced In Terdisciplinary Research:Mechanical Engineering Laboratory
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Ogiso Hisato
National Institute of Advanced Industrial Science and Technology (AIST), 1-2-1 Namiki, Tsukuba, Ibaraki 305-8564, Japan
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