论文部分内容阅读
建立力学模型对刮板链的张力变化进行分析研究,通过MATLAB软件对不同工况刮板链张力的变化规律进行仿真;通过ANSYS Workbench有限元分析软件对刮板链、中部槽天窗打开和关闭两种状态在满载工况下进行有限元分析,确定了该工况的应力集中和最大位移位置,发现吊挂中部槽的耳板强度不够,将材料更换为Q690后满足强度要求;根据有限元分析及静力学分析计算结果,运用nCode软件对刮板链进行疲劳强度分析,得到寿命、损伤云图,符合有限元分析结果且均满足使用要求。
The mechanical model was established to analyze the variation of the tension of the scraper chain. The variation of the tension of the scraper chain under different working conditions was simulated by MATLAB software. By the finite element analysis software ANSYS Workbench, the opening and closing of the scraper chain, Finite element analysis was carried out under full load condition to determine the stress concentration and maximum displacement position of this condition. It was found that the strength of the ear plate in the middle slot of the suspension was not enough, and the material was replaced by Q690 to meet the strength requirements. According to the finite element analysis And static analysis. The nCode software was used to analyze the fatigue strength of the scraper chain, and the life span and damage map were obtained. The results accorded with the results of finite element analysis and meet the requirements of the application.