摘 要：麦弗逊悬架减振器在工作过程中承受动态变化的侧向力，该力会显著增大悬架摩擦力，并导致活塞杆偏磨及油封早期磨损。为减小侧向力，需实现其精确计算。本文首先依据运动学原理与空间力系平衡方程，建立了侧向力理论模型；进而利用MATLAB编写程序求解该模型；最后通过AD-AMS动力学仿真验证了计算结果的准确性。仿真结果证实了所述方法的精确性与高效性。也为系统归纳减小侧向力的有效措施提供了依据。
关键词：麦弗逊悬架；减振器侧向力；运动学仿真；空间力系
中图分类号：U463.33+1 文献标志码：A DOI：10.15917/j.cnki.1006-3331.2025.06.011
Lateral Force Calculation for the MacPherson Suspension Damper Based on a Spatial Mechanism Model
HU Jiuqiang,WANG Peng,LUO Ya,WENG Chang,SUI Xin
Abstract: The MacPherson suspension damper bears dynamic lateral forces during operation.These forces significantly increase suspension friction and lead to side wear of the piston rod and premature wear of the oil seal.To reduce them,accurate calculation is essential.This paper first establishes a theoretical model for the lateral force based on kinematic principles and the equilibrium equations of a spatial force system.It then develops a MATLAB program to solve this model.Finally,the paper verifies the accuracy of the results through dynamic simulation using ADAMS.The simulation results not only confirm the accuracy and efficiency of the method but also provide reference for systematically summarizing effective measures to reduce the lateral force.
Key words: MacPherson suspension; lateral force of damper; kinematic simulation; space force system
