Fatigue Characteristic Analysis of Deepwater Steel Catenary Risers at the Touchd

排行榜 收藏 打印 发给朋友 举报 来源: 《China Ocean Engineering》 发布者:cjk3d
热度1票 浏览6次 【共2条评论】【我要评论 时间:2010年12月14日 13:05
水利论文F7P-d7JsMD

Fatigue Characteristic Analysis of Deepwater Steel Catenary Risers at the Touchdown Point

L%@ Mk!k[0 水利论文i Z4`E_&x

傅俊杰 杨和振水利论文I0z o0Rj

$jXL(d-q\6LF8B0【摘要】:This paper presents fatigue characteristic analysis of a deepwater steel catenary riser(SCR)under ambient excitations.The SCR involves complex nonlinear dynamic behaviors,especially at the touchdown point(TDP)where the riser first touches the seafloor.Owing to the significant interaction with soil,the touchdown zone is difficult to be modeled.Based on Lumped-Mass method and P-y curve,nonlinear springs are used to simulate the SCR-seabed coupled interaction.In case studies,an SCR's dynamic features have been obtained by transient analysis and the structure fatigue assessment has been carried out by S-N approach.The comparative analysis shows that the TDP is the key location where soil-riser interaction rises steeply and minimum fatigue life occurs.Parameters such as ocean environment loads,vessel motions,riser material and geometric parameters are discussed.The results indicate that the vessel motion is the principal factor for the structure fatigue life distribution.水利论文,qL `/L;\zU6J

水利论文/^B8O ^$Kt#j

【作者单位】:

Pe o"f6w`Pui+k0 水利论文8]MM X,\Q2_I

State水利论文NC&^d TCwVU m-r

水利论文)]~:|c IPx"oG

【关键词】:

]?'d;`+U}9s8Oz0 水利论文 b#\y K+i\

steel catenary riser;touchdown point;fatigue analysis;dynamic response;nonlinear spring水利论文;ab|ed

\` [6Gna0【基金】:supported by the National Natural Science Foundation of China(Grant No.50739004)

.V!a-C!JK9N'Na0

n6SG#N jJm gh0【分类号】:P751

z:qWfF6Z%uR,K VE4b0 水利论文}9{IX7uZ"o

【正文快照】:

C Y7gH-Pw0 水利论文X$pK7w%u&L[#n

1.IntroductionThe steel catenaryriser(SCR)is the key apparatus in ultra-deep water exploitation,which in-volves complex nonlinear dynamic behaviors.Application of the SCRis challenged in some cases duetothe highfatigue problem(Huang and Li,2006).Most vul

.`)R6[}o#P%Z0
下一篇:Study on Model Tests and Hydrodynamic Force Models for Free Spanning Submarine P
上一篇:Shoreline Change Modeling on Emergency Beach Nourishment Project on West Beach o
水利论文安徽省电信网友 [k0ey9cko] ip: 117.68.*.*
2017-02-15 14:23:43
There would b <a href="http://www.teammexicoshop.com/world-cup-jurgen-damm-football-jersey/"> Jurgen Damm Jersey</a> e this suitable <a href="http://www.teammexicoshop.com/world-cup-orbelin-pineda-football-jersey/"> Authentic Orbelin Pineda Jersey</a>  experience of reduction, and the conference could possibly move in advance. What it does,  Jurgen Damm Jersey , though, is help prevent or lessen allergy symptoms over the long term.In this ti <a href="http://www.teammexicoshop.com/world-cup-jorge-torres-nilo-football-jersey/"> Jorge Torres Nilo Jersey</a> me around of unique aged, precious time outs, not to mention child psychologist
水利论文安徽省合肥市电信网友 [k0ey9cko] ip: 60.166.*.*
2017-07-19 04:57:11
The heart of induction  <a href="http://www.hockeyrangersjerseys.com/authentic-wayne-gretzky-rangers-jersey-sale/"> Wayne Gretzky Jersey</a> cooktops, to the other hand,  Wayne Gretzky Jersey , is a strong, signif <a href="http://www.hockeyrangersjerseys.com/authentic-dan-boyle-rangers-jersey-sale/"> Dan Boyle Jersey</a> icant frequency electro magnet beneath each ceramic cooking zone. The lawyer act on bail bond hearing, plea bargains, appeals, trails, revocation hearing or post conviction cases.With automated data  <a href="http://www.hockeyrangersjerseys.com/authentic-eddie-giacomin-rangers-jersey-sale/"> Rangers Eddie Giacomin Jersey</a> storag
查看全部回复【已有2位网友发表了看法】

广告投放

广告投放