884aa四虎影成人精品,99久久国产综合精品女图图等你,97在线观看永久免费视频,久久精品国产精品亚洲38,ⅵdeodesetv性欧美

（新加坡國(guó)立大學(xué)土木與環(huán)境工程系， 肯特崗 119260）

［摘要］浮舟式超大型浮式結(jié)構(gòu)(VLFS)是一種漂浮于海面上的巨型工作平臺(tái)，其具有表面積大、吃水較淺的特點(diǎn)。在波浪荷載作用下VLFS處于彈性工作狀態(tài)，這種波浪與結(jié)構(gòu)間的流固耦合作用被稱(chēng)流體彈性。為了評(píng)估波浪荷載下VLFS 運(yùn)動(dòng)及應(yīng)力狀態(tài)，需要在設(shè)計(jì)過(guò)程中對(duì)其進(jìn)行流體彈性分析?；陬l域方法給出了包括鉸接式和任意外形在內(nèi)的VLFS的相關(guān)流體彈性分析公式，并且討論了連接方式及平面形狀對(duì)減小VLFS動(dòng)力響應(yīng)的影響。同時(shí)也研究了海床傾斜情況與結(jié)構(gòu)動(dòng)力響應(yīng)間的關(guān)系。

［關(guān)鍵詞］超大型浮式結(jié)構(gòu); 流體彈性; 耦合作用; 動(dòng)力響應(yīng)

中圖分類(lèi)號(hào)：U661.4    文獻(xiàn)標(biāo)識(shí)碼：A    文章編號(hào)：1002-848X(2014)07-0021-06

Hydroelastic analysis of very large floating structures in frequency domain

C.M.Wang, R.P.Gao, M.M.Pathak

（Department of Civil and Environmental Engineering, National University of Singapore, Kent Ridge 119260, Singapore）

Abstract: Pontoon-type very large floating structures (VLFS) are giant plates resting on the sea surface. As these structures have a large surface area and a relatively small depth, they behave elastically under wave action. This type of fluid-structure interaction has being termed hydroelasticity. Hydroleastic analysis is thus necessary to be carried out for VLFS designs in order to assess the dynamic motion and stresses due to wave action. The mathematical formulation for the hydroelastic analysis of VLFS in the frequency domain was presented. Hydroelastic responses of articulated VLFS and arbitrary shaped VLFS were also presented. The effect of articulation and plan shape on mitigating the structural response of VLFS was discussed. In addition, the effect of a sloping seabed on the structural response of VLFS was investigated.

Keywords: very large floating structure(VLFS); hydroelasticity; fluid-structure interaction; dynamic response

作者簡(jiǎn)介：王建民，教授，新加坡國(guó)立大學(xué)土木與環(huán)境工程系，注冊(cè)結(jié)構(gòu)工程師，新加坡工程院研究員，新加坡工程師協(xié)會(huì)會(huì)員，結(jié)構(gòu)工程師協(xié)會(huì)會(huì)員，IStructE新加坡地區(qū)主席。主要研究方向?yàn)榻Y(jié)構(gòu)穩(wěn)定、結(jié)構(gòu)抗震、結(jié)構(gòu)優(yōu)化、納米結(jié)構(gòu)和片狀結(jié)構(gòu)、浮體結(jié)構(gòu)。Email: ceewcm@nus.edu.sg。