ANALYSIS OF THE MECHANICAL PROPERTIES AND STENGTH EVALUATION OF TENSION LEGS OF TLP
The tendon system is an important part of TLP,and the tension legs must have enough strength to guarantee the safety of the platform.Because in the inplace TLP undergoes a variety of loads,including wind,current and wave load etc.,and the magnitude of load applied on the platform varies with its floating places,selecting the proper method for mechanical properties analysis of tension leg plays a significant role in the evaluation of tension leg global strength.In the paper,the calculating model of tension leg is built on the basis of analysis of many cases.According to longitudinal and transverse bend theory of beam,differential equation for dynamic response of tension leg is derived from the calculating model.Because of the complex structure of tension leg,it is very difficult to obtain mathematical solution of the equation.Therefore,finite element method is used to perform mechanical properties analysis of tension legs.The loads of current,wave and weight,and different position conditions are considered in the finite element analysis.By the finite element analysis,results of calculation in different cases are obtained.In terms of those results,the effect of platform offset and tension leg tension on stress distribution is discussed.Finally,the global strength of tension leg is evaluated by the design standard.
Tension leg finite element numerical analysis stress analysis global strength evaluation
Shisheng Wang Bin Xie Dongyun Huang Xichong Yu
CNOOC Research Institute, Beijing 100027, P.R.China
国际会议
The Twelfth International Symposium on Structural Engineering (第十二届结构工程国际研讨会)
武汉
英文
1327-1331
2012-11-17（万方平台首次上网日期，不代表论文的发表时间）