用直接法分析超大型浮体的水弹性响应  

Analysis of hydroelastic response of VLFS by use of the direct method

作　　者：张淑华[1] 韩满生[1] 

机构地区：[1]中国海洋大学工程学院,山东青岛266071

出　　处：《海洋工程》2004年第1期9-18,共10页The Ocean Engineering

摘　　要：探讨了浮舟桥型超大型浮体结构的水弹性响应分析问题。将超大型浮体结构简化成弹性平板模型,用压力分布法计算流体压力,用直接法计算流体-结构系统,给出了它们的数学计算模型。计算表明本计算方法和程序是正确的,并能保证充分的精度,进而计算了更大尺度的超大型浮体,分析了波长、波向等对响应振幅的影响。The problems of the hydronelastic response of VLFS are studied. VLFS is a kind of pontoon, which is of great significance to our country in building the maritime bases, defending and exploiting distant ocean resources. In order to analyze elementarily the problems of its hydroelastic response, the authors simplify first the VLFS into a model of elastic flat slab, then compute the pressure of fluid and the fluid-structure system using the method of pressure distribution and direct method respectively, finally present a mathematical model and write a calculating program. The tentative calculating model demonstrates that the computing method and program are not only correct, but also can ensure adequately the calculating accuracy. Besides, an example with a larger size is computed, and the responsive amplitudes affected by wavelength and wave direction, etc. are analyzed.

关 键 词：超大型浮体 水弹性响应分析 直接法 

分 类 号：U661.1[交通运输工程—船舶及航道工程]