The Effects of Blockage on the Propagation of Acoustic Waves in the Liquid-Shell Coupled System

摘要：

The free vibration of a fluid/structure system consisting of a cylindrical blockage submerged in a liquid enclosed by a cylindrical shell is investigated for the purpose of pipe line transportation monitoring.The wavenumbers are obtained and the reflection and transmission characteristics of these waves at the blockage interfaces are investigated theoretically.Reflection and transmission ratios are obtained in the axisymmetric mode,as functions of frequency.High order modes play an important role in the near field of the discontinuity and are taken into account.

关键词： fluid/structure coupling system reflection and transmission characteristics blockage detection

作者: Wenbo Duan Fengshou Gu lain Dupere Shan Zhong Andrew Ball

作者单位: School of Mechanical,Aerospace and Civil Engineering,The University of Manchester,Pariser Building,M School of Computing and Engineering,The University of Huddersfield,Queensgate,Huddersfield HD1 3DH,U School of Mechanical,Aerospace and Civil Engineering,The University of Manchester,George Begg Buildi

会议类型: 国际会议

会议名称: The 8th International Conference on Damage Assessment of Structures(DAMAS 2009)(第八届结构损伤评价国际学术会议)

会议地点: 北京

会议语种:英文

页码: 327-333

在线出版日期: 2009-08-03（万方平台首次上网日期，不代表论文的发表时间）