基于数值仿真的扭力梁变形对前束外倾影响的分析

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维普

中文摘要：为研究扭力梁悬架车辆在整车下线状态下由于扭力梁变形对前束外倾角产生的影响，以某电动出租车扭力梁前束外倾角为研究对象，利用数值仿真技术和台架验证相结合的方式，在扭力梁零/部件开发阶段就完成前束外倾角的机加工补偿和台架验证。相比传统利用小批量整车前束外倾角的统计分析结果对扭力梁前束外倾角进行机加工补偿的方法，该方法大幅缩短了开发周期，为主机厂对扭力梁悬架前束外倾角的机加工补偿提供了新的设计和验证方法。主要结果如下:1)利用扭力梁变形数值仿真方法，计算求得弹簧对扭力梁施加下线载荷后的扭力梁前束角变化为2。7'、外倾角变化为-31。5';2)扭力梁结构对前束角变化影响较小，对外倾角变化影响较大;3)基于扭力梁前束外倾角数值仿真变形结果，给与扭力梁前束外倾角等值、反向的机加工角度补偿，利用扭力梁悬架系统台架进行实物验证;4)对比扭力梁前束外倾角变化的数值仿真数据和台架验证数据，误差均在10％以内，扭力梁变形数值仿真结果与台架验证结果的一致性较好。最后，通过整车批量验证，较好地满足了主机厂的生产要求。

外文标题：Analysis of the influence of torsion beam deformation on toe and camber based on numerical simulation

外文摘要：In order to study the effect of torsion beam deformation on toe and camber angle of a torsion beam suspension vehicle when the vehicle is offline,taking the toe and camber angle of the torsion beam of an electric taxi as the research object,the com-bination of numerical simulation technology and bench verification was used to complete the toe and camber angle mechanical compensation and bench verification at the development stage of the torsion beam components.Compared with the traditional method of using the statistical analysis results of small batch of vehicle toe and camber angle to compensate the toe and camber angle of torsion beam,the development cycle of the method proposed was greatly shortened,and a new design and verification method was provided for the mechanical compensation of the toe and camber angle of torsion beam suspension by the main engine factory.The main results are as follows:1)using the numerical simulation method of torsion beam deformation,after the offline load applied by the spring to the torsion beam,the toe and camber angle changes of torsion beam are calculated and obtained,which are 2.7'and-31.5'respectively;2)the torsion beam structure has little influence on the toe angle change,but has great in-fluence on the camber angle change;3)based on the numerical simulation deformation results of the toe and camber angle of the torsion beam,the equivalent and reverse mechanical angle compensations are given to the toe and camber angle of the torsion beam,and the physical verification was carried out using the torsion beam suspension system test bench;4)comparing the numerical sim-ulation data of the toe and camber angle change of the torsion beam with the bench verification data,the error is within 10％,and the numerical simulation results of the torsion beam deformation are in good agreement with the bench verification results.Finally,through the batch verification of the whole vehicle,it meets the production requirements of the main engine factory.

外文关键词：

torsion beam deformationtoe and camber anglenumerical simulationbench verification

作者：

李欢、余振龙、于飞、刘宁、张鑫

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作者单位：

一汽奔腾轿车有限公司,长春 130012

富奥威泰克汽车底盘系统有限公司,长春 130013

长春职业技术学院机电学院,长春 130022

关键词：

扭力梁变形前束外倾角数值仿真台架验证

基金：

2022年度吉林省职业教育与成人教育教学改革研究课题项目2024年度吉林省教育厅科学研究项目2023年吉林省高教科研重点自筹课题项目2022年吉林省高教科研一般课题项目2023年度吉林省职业教育与成人教育教学改革项目

项目编号：

2022ZCY309JJKH20241782KJJGJX2023C165JGJX2022D7142023ZCY294

出版年：

2024

DOI：

10.16731/j.cnki.1671-3133.2024.01.009

现代制造工程

北京机械工程学会北京市机械工业局技术开发研究所

现代制造工程

CSTPCD北大核心

影响因子：0.374

ISSN：1671-3133

年,卷(期)：2024.(1)

参考文献量14