Influence of Temperature on the Bolt Loads and Variation in a Bolted Flange for Subsea Pipeline Connection
Influence of Temperature on the Bolt Loads and Variation in a Bolted Flange for Subsea Pipeline Connection
复制标题
温度对海底管道连接螺栓法兰螺栓载荷和变化的影响
DOI：
10.1155/2021/5636941
复制
发表时间：
2021-05-05
影响因子：
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通讯作者：
Wang, Liquan
中科院分区：
文献类型：
--
作者：
Wang, Pengpeng;Zhang, Lan;Wang, Liquan
本文提出了一种分析和有限元相结合的建模方法，用于研究温度对海底管道连接螺栓法兰中螺栓载荷和变化的影响。利用该方法，研究了不同介质温度下管道内螺栓法兰组件中螺栓的预紧力。模拟结果表明，介质液体温度的升高会增大螺栓载荷的偏差。在介质液体温度一定的情况下，螺栓预紧力的初始偏差越大，螺栓最终载荷偏差沿着增大。螺栓载荷的最终分布受螺栓初始状态的影响。当螺栓预紧力交错时，最终螺栓载荷的方差最小;当螺栓预紧力轴对称时，最终螺栓载荷方差最大。
This article proposed an analytic and finite element-combined modelling method for the investigation of temperature effects on bolt loads and variation in a bolted flange for subsea pipeline connection. With this method, the preloads of bolt in the bolted flange assembly were investigated under different medium liquid temperatures in the pipeline. The simulation results illustrate that the deviation of bolt loads can be increased due to the medium liquid temperature increasing. The final bolt load deviation increases along with the increasing of the initial deviation of bolt preloads in a constant medium liquid temperature. The final distribution of bolt loads can be affected by the initial condition of the bolts. When bolt preloads are staggered, the variance of the final bolt loads is minimized; when the bolt preloads are axisymmetric, the final bolt load variance is the maximum.