海洋热塑性增强管(RTP)涡激振动数值计算

芮雪; 陈东阳; 王国平

doi:10.6052/0459-1879-19-312

海洋热塑性增强管(RTP)涡激振动数值计算

doi: 10.6052/0459-1879-19-312

芮雪^*2), ,,
陈东阳^†,
王国平^*

^* 南京理工大学发射动力学研究所, 南京 210094
^? 扬州大学电气与能源动力工程学院, 江苏扬州 225127

基金项目: 1) 国家自然科学基金资助项目(11472135)

详细信息

通讯作者:
芮雪

中图分类号: TB122
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出版历程
- 收稿日期: 2019-11-11
- 刊出日期: 2020-02-10

NUMERICAL CALCULATION OF VORTEX-INDUCED VIBRATION OF REINFORCED THERMOPLASTIC PIPE

Rui Xue^{*2)
, ,},
Chen Dongyang^†,
Wang Guoping^*

^* Institute of Launch Dynamics, Nanjing University of Science and Technology, Nanjing 210094, China
^? College of Electrical, Energy and Power Engineering, Yangzhou University, Yangzhou 225127, Jiangsu, China

摘要

摘要: 基于Van der Pol尾流振子模型和多体系统传递矩阵法(transfer matrix method for multibody systems, MSTMM), 建立了可以快速预测海洋热塑性增强管(reinforced thermoplastic pipe, RTP)振动特性和涡激振动响应的动力学模型. 仿真结果与ANSYS软件仿真结果以及文献实验数据对比, 验证了本文模型的准确性. 研究了考虑RTP立管刚性接头, 不同顶张力, 不同来流分布等情况对RTP立管涡激振动响应的影响. 计算结果表明: 流速越大, 立管涡激振动激发出的模态越高; 立管涡激振动主要受低阶模态控制; 立管的刚性接头对立管的湿模态影响较小, 但是对较高阶模态为主所激发出的涡激振动振幅分布影响较大; 剪切流对沿立管轴向的涡激振动振幅分布影响较大, 低流速能量小所引起的涡激振动幅值较小, 但是当剪切流流速达到能激发出较高阶模态时, 相比同等流速的均匀流所引起的涡激振动振幅要大.
- 海洋热塑性增强管 /
- Van der Pol尾流振子模型 /
- 多体系统传递矩阵法 /
- 涡激振动
Abstract: The dynamic model for efficiently predicting the vibration characteristics and vortex-induced vibration (VIV) response of reinforced thermoplastic pipe (RTP) is established based on Van der Pol wake oscillator model and transfer matrix method for multibody systems (MSTMM). The simulation results are compared with that of ANSYS software and experimental data, which verified the accuracy of the model. The influence of steel joints, top tension, and different inflow distribution on the VIV response of the riser is investigated. The results show that higher flow velocity may excite higher modes. The riser vortex induced vibration is mainly controlled by low-order modes. The steel joints of the riser have less influence on the wet modal of the riser. However, the influence of the VIV amplitude distribution excited by the higher-order modes as dominant vibration modes is greater. The shear flow has a great influence on the VIV amplitude distribution along the axial direction of the riser. The VIV amplitude caused by small energy at low flow velocity is smaller. However, when the shear flow velocity is enough to excite a higher-order mode of the riser, the VIV amplitude is larger than that of the uniform flow at the same flow velocity.
- reinforced thermoplastic pipe /
- van der pol wake oscillator model /
- transfer matrix method for multibody systems /
- vortex-induced vibration

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参考文献(1)

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