平转连续梁转体系统应力理论计算与数值模拟研究

Calculation and Numerical Simulation Research on the Stress of the Swivel System for Horizontal Rotating Continuous Beam

依据弹性接触理论、材料强度理论,对静力作用下,日照肖家庄地区T型连续梁转体系统上、下转盘和球铰应力进行计算和强度分析,并通过ANSYS通用有限元软件对转体系统进行数值模拟,计算静力作用下转盘和球铰的应力分布。将转盘和球铰应力理论值与ANSYS数值模拟结果进行对比分析研究,得出转体系统中球铰应力分布呈现从球铰中心向球铰边缘逐步增大的规律,在球铰平面半径距离外边缘15%的范围内应为球铰设计重点关注区域。研究发现在理论计算中,采用等效应力计算方法较准确;在ANSYS数值模拟计算中,发现球铰采用SOLID单元计算结果更稳定、准确。

Based on the contact theory in the elastic mechanics and the theory of material strength,the stress on the upper and lower rotating turnplate and the ball joint of the T-type swivel system for a continuous bean in Xiaojiazhuang area,Rizhao,is calculated and analyzed.Then the numerical simulation is conducted on the swivel system by using the ANSYS general finite element software,which could calculate the stress distribution on the rotating turnplate and the ball joint under static force.Comparative research is conducted between the theoretical value of the stress on the rotating turnplate and the ball joint and its corresponding simulation results by ANSYS.The stress distribution law of the ball joint of the swivel system that the stress distribution of the ball joint gradually increases from the center of the ball joint to the edge of the ball joint can be obtained.In the range of 15%from the outer edge of the ball joint plane radius,it should be the key area of the ball joint design.And it is found that in the theoretical calculation,using the equivalent stress calculation method can be more accurate;in the ANSYS numerical simulation calculation,using the SOLID unit to calculate the ball joint could be more stable and accurate.