Design of Large-diameter Pipeline Spreader and Finite Element Analysis of its Reliability

摘要

In view of the problem that the large-diameter pipeline gets out of the spreader in the hoisting process due to the insufficient spreader strength and rigidity caused by the large hoisting acceleration, a kind of special pipe spreader is designed; 3D software is used to establish the geometric model of spreader, and the finite element analysis theory of the pipeline and spreader is studied; use the finite element analysis software ABAQUS to calculate and analyze the established decomposed model of the spreader and pipeline, and mainly take the influence of wirerope lifting acceleration and swing in the process of spreader hoisting and transportation into account, conduct the simulated calculation for the non-linear contact of composite structure under the gravitational acceleration of 1g, 1.5g and 2g, and get the stress distribution of each part of spreader in the process of pipeline hoisting. The analysis result shows that the maximum stress of each part of spreader is within the tolerance range of the material under the stress of 1g, 1.5g and 2g, meeting the design requirements.