冰激结构振动的非线性分析
-
摘要: 冰对结构的作用表现为冰的变形和破碎两个阶段,具有间隙非线性特性.考虑到这个特性,我们利用非线性分析方法建立了非线性的冰-结构相互作用的动力学模型,从理论上阐明,冰激柔性结构的振动是一种多频干扰、自激和强迫的耦合振动系统,并研究了试验中观察到的锁频现象的机理.本文得到的冰力计算公式可用于海洋工程结构的设计计算.
-
杨国金等.正倒锥组合体现场破冰试验与分析.中国造船,1993,增刊,194-200 Peyton H R.Seaice forces.In:Proc.of Conference in Ice Pressure A gainst Structures,Laval University,Q uebec,1966 Blenkarn K A.Measurement and analysis of ice forces on Cookinlet structures.OTC(1261),A strodomain,Houst on,Texas.1970,365-378 Mababttabnen M P.Laboratory test for dynamic ice-structure interaction.POA C,the University of Trondheim,Norway,1979,1139-1 153 徐继祖.海冰引起的结构振动.海洋工程,1986,4(2):42-47 Tsuchiya M,S Kanie and KIkejiri,A Yoshida and H Saeki.An experimental study on ice-structure in teraction.In:Proc.of the 17th Off shore Technology Conference,As trodomain,Houst on,exas.Vol.4,1985,321-327 Michel B and Toussaiut.Mechanisms and theory of inden tation of ice plates.J.of Glaciology,1977,19(81):285-300 Mababttab nen M P.Experience of ice forces agains taste lligh thouse mounted on the seabed and proposed constructional refinements.In:Proc.of the 3th International Conference on Port and Ocean Engineering under Arctic Conditions.University of Al aska Fairbanks,1975 Xu J Z and Wang L Y.The ice force oscil lator model for dynamic ice-structure interaction analysis.In:Proc.ITC-86,Cambridge University,Mass.,USA Shih L Y.Analysis of ice-induced vibrations on flexible structure.Appl.Math.Modelling,1991,15,632-638 Croteau P.M Rojansky and B C Ger wick.Summerice floe impacts against caiss on-type exploratory.In:Proc.of the3th Int ernational Off shore Mechanics and Arctic Engineering Symposium,AS M E,United Engineering Center,NY,Vol.3,1984,228-237 隋吉学等.渤海海冰侧限抗压强度的试验研究.海冰学报,1989,11(4):519-524 Crespo da silva M R M.Flexural-flexural oscill ations of Beck's column subjected to a planar harmonic excitation.J.of Sound and Vid.,1978,(60):133-144 Nayfeh A Hand D T Mook.Non linear Oscillations.John Wiley-Sons,N Y,1979 陈予恕.非线性振动.天津:天津科技出版社,1983 徐继祖,王翎羽.冰力振子模型及其数值解.天津大学学报,1988,(4):28-34 陈予恕等.非线性动力学中的现代分析方法.北京:科学出版社,1992
点击查看大图
计量
- 文章访问数: 665
- HTML全文浏览量: 10
- PDF下载量: 825
- 被引次数: 0