Research on the Finite Element Model of Box Structure with Complex Spatial Weld Seams

2018 International Conference on Civil and Hydraulic Engineering

土木建筑工程;水利工程

Fang, Yuanbin^1,2 ; He, Minghu^3 ; Wang, Yong^2 ; Feng, Hu^3

XCMG Jiangsu Xuzhou Engineering Machinery Research Institute, Xuzhou J S

221004, China^1

XCMG Xuzhou Mining Machinery Co. Ltd, Xuzhou J S

221004, China^2

XCMG Road Machinery Corporation, Xuzhou J S

221004, China^3

关键词: Deformation curves;    Deformation distributions;    Deformation trend;    Engineering applications;    Grid partition;    Measuring points;    Pad deformation;    Simulation curves;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/189/2/022035/pdf
DOI  :  10.1088/1755-1315/189/2/022035

学科分类：土木及结构工程学

来源: IOP

【 摘 要 】

To establish box structure model with complex space weld seams, the grid partition method is studied. The finite element model is established, and the deformation distribution of the box structure is obtained. The simulation results are verified. The results show that the deformation trend of the box structure is towards warp at the free edge of the left and right vertical plates. The deformation of the plate centre is inner concave. The maximum deformation is 1.714mm at the centre position of the vertical plate. The bottom pad is produced the extruding tendency. The deformation of the bottom pad near the two sides is about 0.51mm, which is more than the deformation of 0.34mm far away from the two vertical plates. The deformation of the front and back Z plate is not consistent. The long strip occurs wavy deformation. The deformation curve of the measuring point is similar to the simulation curve of the bottom pad deformation. There are 5 peaks of the long strip ranged from 0.08mm to 0.53mm. The deviation between simulation results and measurement results is within 0.45mm. The error meets the requirements of engineering application and can effectively guide production.