横截面圆角对少片变截面板簧力学特性的影响  

Influence of Cross-sectional Rounded Corners on Mechanical Properties of Fewer-leaf Variable Cross-section Leaf Springs

作　　者：宋霁勃 李彦虎 路永婕[3] 张琳傲 SONG Jibo;LI Yanhu;LU Yongjie;ZHANG Lin’ao(School of Mechanical Engineering,Shijiazhuang Tiedao University,Shijiazhuang 050043,China;Department of Mechanical and Electrical Engineering,Shijiazhuang College of Applied Technology,Shijiazhuang 050081,China;State Key Laboratory of Mechanical Behavior and System Safety of Traffic Engineering Structures,Shijiazhuang Tiedao University,Shijiazhuang 050043,China)

机构地区：[1]石家庄铁道大学机械工程学院,河北石家庄050043 [2]石家庄职业技术学院机电工程系,河北石家庄050081 [3]石家庄铁道大学省部共建交通工程结构力学行为与系统安全国家重点实验室,河北石家庄050043

出　　处：《石家庄铁道大学学报(自然科学版)》2025年第1期112-118,共7页Journal of Shijiazhuang Tiedao University(Natural Science Edition)

基　　金：国家自然科学基金(12072204)。

摘　　要：CAE技术对钢板弹簧的建模仿真在优化结构强度、整体刚度和提高设计效率方面具有重要价值。为了更精准地描述少片变截面板簧的力学特性,首先,通过Matlab计算板簧上表面的曲率,拟合下表面廓形的多项式,运用SolidWorks建立了包含完整圆角和无圆角板簧三维实体模型;然后,在ANSYS中进行了板簧静力学仿真分析;最后,通过台架试验进行验证。结果表明,考虑横截面圆角的板簧模型与实际情况更为接近,最大位移和应力仿真数据与试验数据相对误差仅为1.19%和0.154%。整个过程综合了台架试验和CAE技术的优点,证明了横截面圆角在仿真建模中的重要性,为钢板弹簧的结构设计提供参考。The application of CAE technology in the modeling and simulation of leaf springs holds significant value in optimizing structural strength,overall stiffness,and enhancing design efficiency.To more precisely describe the mechanical properties of fewer-leaf variable cross-section leaf springs,the curvature of the upper surface was first calculated using Matlab,and a polynomial for the contour of the lower surface was fitted.Three-dimensional solid models of the leaf spring,both with and without rounded corners,were then established using SolidWorks.Subsequently,static simulation analysis of the leaf spring was conducted in ANSYS.Finally,the results were validated through bench tests.The results show that the leaf spring model considering cross-sectional rounded corners was closer to actual conditions,with the maximum displacement and stress simulation data showing relative errors of only 1.19% and 0.154% compared to experimental data.The entire process integrated the advantages of bench tests and CAE technology,demonstrating the importance of cross-sectional rounded corners in simulation modeling and providing a reference for the structural design of leaf springs.

关 键 词：变截面板簧 有限元分析 静载试验 曲线拟合 

分 类 号：TH135[机械工程—机械制造及自动化]