通用型FPSO管路系统的复杂性和紧凑性相比传统FPSO有显著提升，作业负荷更大，油气泄漏和火灾风险更高，因而对整个管路系统的安全性以及支架的优化上有更高要求。本文将传统的输入附加位移D模拟船体变形变为温度T中热膨胀系数的叠加来表现，给出工况设置方法，综合考虑各种环境条件研究其对管道应力以及位移的影响，对通用型FPSO玻璃钢压载水管道进行一次、二次应力及水锤载荷计算，验证压载水管路设计的合理性，并对不合理部分给出优化方案，提高管路系统的安全性，为通用型FPSO管路系统工程设计提供技术借鉴。
Compared with the traditional FPSO, the complexity and compactness of the general-purpose FPSO pipeline system have been significantly improved, the operation load is greater, the risk of oil and gas leakage and fire is higher, so the safety of the whole pipeline system and the optimization of the support have higher requirements. In this paper, the traditional input additional displacement D is used to simulate the ship's deformation, which is represented by the superposition of the thermal expansion coefficient in temperature T. The setting method of working condition is given, and the influence of various environmental conditions on the stress and displacement of the pipeline is studied comprehensively. The primary and secondary stress and water hammer load of the general-purpose FPSO GRP ballast water pipeline are calculated, the rationality of the design of the ballast water pipeline is verified, and the optimization scheme for the unreasonable part is given, which improves the safety of the pipeline system. It is a general-purpose FPSO pipeline system Engineering design provides technical reference.
2020,42(8): 64-68 收稿日期：2019-10-22
DOI：10.3404/j.issn.1672-7649.2020.08.012
分类号：TQ050.2
作者简介：伍加凯(1995-),男,硕士研究生,主要研究方向为海工结构设计
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