自升式风电安装船升降系统强度非线性分析  

NONLINEAR STRENGTH ANALYSIS OF JACK-UP SYSTEM OF SELF-ELEVATING TURBINE INSTALLATION VESSEL

作　　者：欧阳占欢 张永康[2] 王匀[1] 倪涛 庄建军 屠艳 张满奎[1] 王振刚 

机构地区：[1]江苏大学机械工程学院,镇江212013 [2]东南大学机械工程学院,南京211189 [3]南通中远船务工程有限公司,南通226003

出　　处：《太阳能学报》2015年第1期78-84,共7页Acta Energiae Solaris Sinica

基　　金：江苏省科技成果转化专项(BA2009076);江苏省自然科学基金(BK2010042);江苏省"333工程"科研项目(BRA2011180)

摘　　要：升降系统是自升式风电安装船(简称风装船)的关键部分,通过多点约束(MPC)技术和接触算法,建立升降系统非线性精细有限元模型,基于偏移距离和固桩高度优化的结果,开展升降系统在不同类型、不同工况下的强度分析。研究结果表明,在一定的范围内,升降合力作用线越偏向于桩腿圆心、固桩高度越高,升降系统主体部分(即桩腿和插销)的强度安全系数越高。当主要考虑最大应力时,升降系统的设计选用对孔交叉型桩腿更合理。研究结论为风装船升降系统的设计与制造提供了理论指导。The jack-up system is the key part of self-elevating turbine installation vessel （TIV）. Aiming at the jack-up system, its nonlinear fine finite element model was established by MPC and contact algorithm. Based on the results of parameter optimization, strength analyses of the jack-up system were carried out under the conditions of different types and operating conditions. Results showed that in a certain range, the strength of main part （leg and pin） of the jack-up system increase when the distance between the active line of jacking force and the center of the leg become smaller or the height of the fix leg area become higher. Hole-cross type of leg is a better choice when maximum stress is the key factor in the design of the jack-up system. The results provide a referential value for processes of designing and building of the jack-up system.

关 键 词：升降系统 风装船 非线性 精细有限元 强度分析 

分 类 号：TH114[机械工程—机械设计及理论]