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首页> 外文会议>ASME international conference on ocean, offshore and arctic engineering >Effects of Nonlinear Riser-Soil Interaction Model on Fatigue Design of Steel Catenary Riser Under Random Waves
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Effects of Nonlinear Riser-Soil Interaction Model on Fatigue Design of Steel Catenary Riser Under Random Waves

机译：非线性上升管-土壤相互作用模型对随机波作用下钢悬链提升管疲劳设计的影响

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Steel Catenary Risers (SCRs) are one of the main components in development of oil and gas fields in deep waters. Fatigue design of SCRs in touch down zone (TDZ) is one of the main engineering challenges in design of riser systems. Nonlinear riser-soil interaction models have recently been introduced and used widely in advanced structural analysis of SCRs. Due to hysteretic nonlinear behavior of the soil, SCR system will show different structural response under different loading time histories. This paper investigates the effects of nonlinear riser-soil interaction in the TDZ on fatigue performance of an example SCR subjected to randomly generated waves. Sensitivity of fatigue life of the system, location of the critical node and the maximum stress range to different wave realizations and different soil types are discussed in detail.
机译：钢悬链提升器（SCR）是深水油气田开发的主要组成部分之一。降落区（TDZ）SCR的疲劳设计是立管系统设计中的主要工程挑战之一。非线性立管与土壤的相互作用模型最近已被引入并广泛用于SCR的高级结构分析中。由于土壤的滞后非线性行为，SCR系统在不同的加载时间历程下将表现出不同的结构响应。本文研究了TDZ中非线性立管-土壤相互作用对示例SCR随机产生波的疲劳性能的影响。详细讨论了系统疲劳寿命的敏感性，关键节点的位置以及最大应力范围对不同波浪实现方式和不同土壤类型的敏感性。

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