ttrs

The results show that using the slice theory to study the VIV of TTRs is feasible .

计算结果表明用切片理论求解顶张力立管涡激振动的方法是可行的。

Three kinds of variational geometric constraints ( VGCs ) are presented based on TTRS theory .

基于TTRS理论，提出了3类变动几何约束。

SCR is considered over both flexible riser and TTRs in deepwater development and is a cost effective solution to deepwater oil and gas production .

因此，它取代了传统的柔性立管和顶张力立管，成为深水油气开发的首选立管，被认为是深水立管系统的成本有效的解决方案。

Based on tolerance definition and feature type defined by ISO / TC 213 , contents of the geometrical specifications , TTRS theory and several sorts of feature are analyzed .

然后引入了ISO／TC213公差语义定义和特征类型，阐述了几何规范的内容、TTRS理论及特征的几种分类。

Based on graph theory and TTRS theory , The concepts of mate tree and loop circuit are put forward , and the properties of mate tree and the generation rules of loop circuit are discussed .

基于图论和TTRS理论提出配合树和回路概念，给出配合树的性质和回路的生成规则；