全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...
工程力学  2015 

一般支撑条件下横向流中弹性圆柱的响应

Keywords: 圆柱阵,流致振动,概周期,分岔,庞加莱映射

Full-Text   Cite this paper   Add to My Lib

Abstract:

该文以横向流方形圆柱阵中的单根、两端带有一般支撑条件圆柱的流致振动现象进行研究。考虑圆柱的横向变形及其对轴力的影响,建立了系统动力学方程。分析了系统的稳定性及在不同流速条件下出现的复杂非线性行为,该文以分岔图、相平面图、庞加莱映射图来刻画流速变化对圆柱振动的影响。研究结果表明,系统的初始预应力,降低了圆柱的稳定性;当流速较小时,系统首先表现为周期运动;随着流速增大,系统进入概周期运动,该系统未发生混沌运动。

References

[1]  黄维平, 王爱群, 李华军. 海底管道悬跨段流致振动实验研究及涡激力模型修正[J]. 工程力学, 2007, 24(12): 153―157. Huang Weiping, Wang Aiqun, Li Huajun. Experimental study on viv of span of subsea pipe- line and improved model of lift force [J]. Engineering Mechanics, 2007, 24(12): 153―157. (in Chinese)
[2]  陈伟民, 张立武, 李敏. 采用改进尾流振子模型的柔性海洋立管的涡激振动响应分析[J]. 工程力学, 2010, 27(5): 240―246. Chen Weimin, Zhang Liwu, Li Min. Prediction of vortex-induced vibration of flexible rise using improved wake-oscillator model [J]. Engineering Mechanics, 2010, 27(5): 240―246. (in Chinese)
[3]  Paidoussis M, Li G. Cross-flow-induced chaotic vibrations of heat-exchanger tubes impacting on loose supports [J]. Journal of Sound and Vibration, 1992, 152(2): 305―326.
[4]  Cai Y, Chen S. Chaotic vibrations of nonlinearly supported tubes in crossflow [J]. Journal of Pressure Vessel Technology (United States), 1993, 115(2): 128―134.
[5]  王琳. 横向流引起含松动支承细长圆柱体的失稳与非线性振动[C]// 第12届全国非线性振动暨第9届全国非线性动力学和运动稳定性学术会议论文集, 江苏: 江苏大学出版社, 2009: 35―41. Wang Lin. Cross-flow-induced instability and non-linear vibrations of slender cylinder subject to loose support [C]// The First Session of the Twelfth National Nonlinear Vibration & the Ninth National Nonlinear Dynamics and Stability of the Motion of Academic Conference, Jiangsu: Jiangsu University Press, 2009: 35―41. (in Chinese)
[6]  Xia W, Wang L. The effect of axial extension on the fluidelastic vibration of an array of cylinders in cross-flow [J]. Nuclear Engineering and Design, 2010, 240(7): 1707―1713.
[7]  Hassan M, Hossen A. Time domain models for damping-controlled fluidelastic instability forces in tubes with loose supports [J]. Journal of Press and Vessel Technology, 2010, 132(4): 041302-1.
[8]  Price S J. A review of theoretical modes for fluidelastic instability of cylinder arrays in cross flow [J]. Journal of Fluid and Structure, 1995, 9(5): 463―518.
[9]  Price S J, Paidoussis M P, A single-flexible-cylinder analysis for the fluidelastic instability of an array of flexible cylinders in cross flow [J]. Journal of Fluids Engineering, 1986, 108(2): 193―199.
[10]  Chen S S. Cross flow-induced vibrations of heat exchanger tube banks [J]. Journal Nuclear Engineering and Design, 1978, 47(1): 67―86.
[11]  Pettigrew M J, Sylvestre Y, Campagna A O. Vibration analysis of heat exchanger and steam generator designs [J]. Journal Nuclear Engineering and Design, 1978, 48(1): 97―115.
[12]  Makhutov N, Kaplunov S, Pruss L. Vibratsiya i dolgovechnost’sudovogo energeticheskogo oborud- ovaniya [M]. (Vibration and Durability of Ship’s Energy Equipment. Leningrad: Sudostroenie, 1985: 102―110.
[13]  包日东, 金志浩, 闻邦春. 端部约束悬臂输流管道的分岔与混沌响应[J]. 振动与冲击, 2008, 27(5): 36―43. Bao Ridong, Jin Zhihao, Wen Bangchun. Bifurcation and chaotic response of restrained cantilever pipe with conveyed fluid [J]. Journal of Vibration and Shock, 2008, 27(5): 36―43. (in Chinese)

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133