钻塔横向移动装置有限元分析及结构改进

Finite element analysis and structure design of rig transverse moving device

针对某海洋平台钻塔横向移动装置原有的滑动副带来的问题,在移动装置中采用滚动副取滑动副,运用ANSYS分析软件对其进行有限元分析。在满足滚子强度和刚度的前提下,针对滚动副中滚子接触区域存在应力集中问题对其进行结构改进。改进后的结构使最大应力降低了15.8%,同时减轻了滚子的重量,获得了较为理想的结构和尺寸,并实现了滚子自动居中。

Aimed at the problems of sliding pair at rig transverse moving device, original sliding pair is replaced by rolling pair. Utilizing ANSYS software to carrying out finite element analysis on its frame and found out the existed stress concentration problems of roller. Under the premise of roller satisfies in possessing enough strength and rigidity,the structure improvement design is carried out on frame of roller. The comparison of structures afier improvement with the structures of the original show the maximum stress is lowered to about 15.8%,the mass of roller is reduced,and achieve the goals of auto-centering roller.