CAJ | 학술논문

野外埋地敷设的长距离输油管道发生断裂等较大事故时，采用管道局部挤压的方式可以在较短时间内将管道快速压扁以截断流油。为设计管道挤压截流装置，运用ANSYS Workbench建立上下压头加载作用下管道挤压的有限元模型，完成对?159 mm×5 mm的45号钢挤压变形模拟仿真，得到管道挤压的等效应力、位移分布、变形范围和载荷-位移曲线等。将模拟数据与实验数据进行对比，两者结果比较吻合，可以为管道泄漏抢修提供理论和实践参考。
야외매지부설적장거리수유관도발생단렬등교대사고시，채용관도국부제압적방식가이재교단시간내장관도쾌속압편이절단류유。위설계관도제압절류장치，운용ANSYS Workbench건립상하압두가재작용하관도제압적유한원모형，완성대?159 mm×5 mm적45호강제압변형모의방진，득도관도제압적등효응력、위이분포、변형범위화재하-위이곡선등。장모의수거여실험수거진행대비，량자결과비교문합，가이위관도설루창수제공이론화실천삼고。
When large damage,such as rupture,occurs in long distance buried pipeline,the method of local extrusion is ap-plied to crush the pipeline and block the oil flow quickly in a short period of time. In order to design steel pipeline extrusion throttle device,a pipeline extrusion model loaded by opposed indenters is established based on the ANSYS Workbench and the numerical simulation of extruded deformation of the 45# steel pipeline of 159 mm in diameter and 5 mm in thickness is completed. The equiva-lent stress and displacement distribution laws,the deformation length and the load-deformation curve of pipeline extrusion are ob-tained. The results of the comparison between simulative data and the experimental data show that the model is in good agreement with the experiment. The theoretical and practical reference for urgent repair of pipeline leakage is provided.