基于ANSYS Workbench转向直拉杆有限元分析
Finite Element Analysis of Steering Drag Link Based on ANSYS Workbench

转向直拉杆是转向系统主要的零部件之一，对转向系统的整体可靠性有很大的影响。以某款转向直拉杆为研究对象，针对其强度以及固有频率对转向直拉杆的影响，利用SolidWorks软件建立转向直拉杆3D实体模型，并基于ANSYS Workbench软件对直拉杆进行静力学分析及模态响应分析。通过前10阶模态分析可知，确定转向直拉杆杆身为共振主要危险区域，且满足道路噪声800 Hz研究范围的要求；静力学结果表明，转向直拉杆在极限位置所受最大压应力下，其最大应力值小于接头壳体的抗拉强度和屈服强度，故满足强度设计要求。
The steering drag link is one of the main parts of the steering system, which has a great impact on the overall reliability of the steering system. Taking a steering tie rod as the research object, aiming at the influence of its strength and natural frequency on the steering tie rod, the 3D solid model of the steering tie rod is established with SolidWorks software, and the static analysis and modal re-sponse analysis of the drag link are carried out based on ANSYS workbench software. Through the modal analysis of the first 10 orders, it can be seen that the steering drag link body is determined as the main resonance hazard area, and meets the requirements of the road noise study range of 800 Hz; the static results show that the maximum stress value of the steering drag link under the maximum pressure stress at the limit position is less than the tensile strength and yield strength of the joint shell, so it meets the strength design requirements.