廖菲 陈浩 郭伟科 毛璐瑶 罗良传
（广东省科学院智能制造研究所/广东省现代控制技术重点实验室，广东 广州 510075）
摘要：针对汽车传动轴轴管在实际工况下的强度和塑性要求，采用计算机辅助设计和有限元软件对传动轴轴管进行瞬态动力学的等效应力、定向速度和结构变形仿真分析，得到塑性、变形、应变等非线性的特性分析结果和随时间变化曲线。仿真结果表明，在载荷施加到第3 s时，传动轴轴管的X方向等效应力最大为2.806 5 MPa、定向速度最大为6.452 6×10-3 mm/s、X方向结构变形最大为1.401 7×10-3 mm、Y方向结构变形最大为2.151 8×10-3 mm，均符合赫兹理论要求。该文仿真分析获得的传动轴轴管载荷特性，可在设计阶段评估汽车传动轴轴管的强度和塑性是否满足设计要求并进行结构优化，为进一步提升汽车传动轴轴管的结构设计合理性提供有益借鉴。
关键词：瞬态动力学；汽车传动轴轴管；载荷特性；仿真分析
中图分类号：TG659 文献标志码：A 文章编号：1674-2605(2024)05-0010-06
DOI：10.3969/j.issn.1674-2605.2024.05.010 开放获取
Simulation Analysis of Automotive Transmission Shaft Tube Based on Transient Dynamics
LIAO Fei CHEN Hao GUO Weike MAO Luyao LUO Liangchuan
(Institute of Intelligent Manufacturing, GDAS/ Guangdong Key Laboratory of Modern Control Technology,
Guangzhou 510075, China)
Abstract: In response to the strength and plasticity requirements of automotive transmission shaft tubes under actual working conditions, computer-aided design and finite element software were used to conduct transient dynamic equivalent stress, directional velocity, and structural deformation simulation analysis of the transmission shaft tubes. Nonlinear characteristic analysis results such as plasticity, deformation, and strain, as well as time-varying curves, were obtained. The simulation results show that when the load is applied at the 3rd second, the maximum equivalent stress in the X direction of the transmission shaft tube is 2.806 5 MPa, the maximum directional velocity is 6.452 6 × 10-3 mm/s, the maximum structural deformation in the X direction is 1.401 7 × 10-3 mm, and the maximum structural deformation in the Y direction is 2.151 8 × 10-3 mm, all of which meet the requirements of Hertz theory. The load characteristics of the transmission shaft tube obtained from the simulation analysis in this article can be used to evaluate whether the strength and plasticity of the automotive transmission shaft tube meet the design requirements and optimize the structure during the design phase, providing useful reference for further improving the structural design rationality of the automotive transmission shaft tube.
Keywords: transient dynamics; automobile transmission shaft tube; load characteristics; simulation analysis
