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| Dynamic stiffness method for vibration of fluid-filled curved pipe by continuous/discrete model |
| Received:April 04, 2018 Revised:May 26, 2018 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7511/jslx20180404001 |
| KeyWord:dynamic stiffness method fluid-filled pipes vibration curved pipes calculation efficiency |
| Author | Institution |
| 朱竑祯 |
南京航空航天大学 航空学院机械结构力学及控制国家重点实验室, 南京 |
| 王纬波 |
中国船舶科学研究中心 船舶振动噪声重点实验室, 无锡 |
| 殷学文 |
中国船舶科学研究中心 船舶振动噪声重点实验室, 无锡 |
| 高存法 |
南京航空航天大学 航空学院机械结构力学及控制国家重点实验室, 南京 |
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| Abstract: |
| The three-dimensional vibration model of a fluid-filled curved pipe was investigated.Dynamic stiffness method was utilized to solve the vibration problem of curved and straight pipe elements.And then,the fluid-filled pipe system was constructed,which was applicable for both continuous models containing curved pipe elements and discrete models formed by straight pipe elements.Comparison with the finite element method and the transfer matrix method reveals that the calculation efficiency and accuracy are improved by the dynamic stiffness method.The validity of the present computational method for a pipe assembly is verified through the comparison with experimental acceleration response curves of an L-shaped fluid-filled pipe system.Furthermore,the continuous and discrete models are analyzed in order to clarify the distinction and their respective scope of applications. |