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建立三维的悬索结构的聚乙烯燃气管道仿真模型,运用分析软件ANSYS对悬索结构的聚乙烯管道进行静力学性能分析。模拟出了在其他条件相同的情况下,改变跨长或是管径时,管道变形量的变化趋势。考虑悬索结构非线性,在进行多次找形计算后,通过分析,求解出了跨中节点的挠度变化情况。研究结果表明:跨长的变化会影响管道的跨中挠度。管道中点挠度的变化虽然在整体上随着管道跨度的增大而增大,但是会在到达一定距离后增长平缓;而管道内径的改变对管道的变形量并没有很大影响,适当增大管道内径,在保证安全的同时可以提高经济效益。
The polyethylene gas pipeline simulation model with three-dimensional suspension structure was established, and the static mechanical performance of the polyethylene pipe with suspension structure was analyzed by the analysis software ANSYS. Simulated under the other conditions of the same circumstances, when changing the length of the span or diameter, the pipe deformation trend. Considering the nonlinearity of the suspension structure, the deformation of the mid-span joints is solved by analyzing and finding out the shape-changing calculation. The results show that the variation of span length will affect the mid-span deflection of pipeline. Although the change of mid-point deflection of pipe increases with the increase of pipe span as a whole, it will increase gently after reaching a certain distance; and the change of pipe inner diameter has no significant effect on the pipe deformation, Pipe diameter, while ensuring safety at the same time can improve economic efficiency.