FATIGUE ANALYSIS AND OPTIMIZATION OF TRANSVERSE STAILIZER BAR LINK BASED ON MEASURED LOAD SPECTRUM

LIU Zhilei; DU Jian; HAN Jie

doi:10.16579/j.issn.1001.9669.2025.01.015

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FATIGUE ANALYSIS AND OPTIMIZATION OF TRANSVERSE STAILIZER BAR LINK BASED ON MEASURED LOAD SPECTRUM

·Fatigue·Damage·Fracture·Failure Analysis· | 更新时间：2025-01-23

- FATIGUE ANALYSIS AND OPTIMIZATION OF TRANSVERSE STAILIZER BAR LINK BASED ON MEASURED LOAD SPECTRUM
- Journal of Mechanical Strength Vol. 47, Issue 1, Pages: 134-145(2025)
- 作者机构：
  
  1.河北工业职业技术大学，石家庄 050091
  2.三一重机试验检测中心，昆山215300
  3.燕山大学河北省特种运载装备重点实验室，秦皇岛 066004
- 作者简介：
  
  DU Jian, E-mail: dujiancaeri@163.com
- 基金信息：
  
  National Natural Science Foundation of China(51775481)
- DOI：10.16579/j.issn.1001.9669.2025.01.015
  CLC： U463.1
- Published：15 January 2025，
  
  Received：11 March 2023，
  
  Revised：06 July 2023，
- 稿件说明：
移动端阅览
LIU ZHILEI, DU JIAN, HAN JIE. FATIGUE ANALYSIS AND OPTIMIZATION OF TRANSVERSE STAILIZER BAR LINK BASED ON MEASURED LOAD SPECTRUM. [J]. Journal of mechanical strength, 2025, 47(1): 134-145.
DOI：

LIU ZHILEI, DU JIAN, HAN JIE. FATIGUE ANALYSIS AND OPTIMIZATION OF TRANSVERSE STAILIZER BAR LINK BASED ON MEASURED LOAD SPECTRUM. [J]. Journal of mechanical strength, 2025, 47(1): 134-145. DOI： 10.16579/j.issn.1001.9669.2025.01.015.

摘要

为解决某皮卡车横向稳定杆连杆疲劳断裂问题，以实测载荷谱为数据支撑，基于多体动力学载荷分解法进行连杆疲劳分析与结构改进。开展稳定杆连杆载荷谱采集试验，进行传感器信号之间的关联分析，验证了采集信号的有效性。通过悬架运动学与柔顺性（Kinematics Compliance，KC）试验，校验了悬架系统动力学模型传力的准确性，采用虚拟迭代法，以实测载荷谱信号为激励，验证了整车动态模型的精度。对比运用多体动力学载荷分解法、压杆失稳理论法、台架试验法3种方法分别获取连杆的临界载荷，对连杆强度进行校核，并与连杆实测载荷值进行对比，对3种方法准确性进行评价。结果表明，多体动力学载荷分解法能精准地预测连杆的临界载荷，而台架试验法结果存在一定误差，压杆失稳理论不能直接用于连杆的强度校核。结合名义应力法与多体动力学分解的载荷谱对连杆开展疲劳仿真与优化，仿真预测连杆疲劳里程数为12 143 km，与真实寿命相对误差值为14%，证明了仿真方法的有效性，对连杆杆身端口危险部位进行结构改进，消除了连杆应力集中现象，使连杆设计寿命满足使用要求。

Abstract

In order to solve fatigue fracture problem of the transverse stabilizer bar link of a pickup truck

taking the measured load spectrum as support

the fatigue analysis and structural improvement of bar link was carried out based on multi-body dynamics load decomposition method. The load spectrum acquisition test of stabilizer bar link was carried out

and the correlation analysis between sensor signals was conducted

and the validity of the collected signals was verified. Through the kinematics compliance（KC） test

the accuracy of suspension dynamics model was verified

by using virtual iteration method

the accuracy of the vehicle dynamic model is verified by the measured load spectrum signal as excitation. The critical load of bar link was obtained by means of multi-body dynamics load decomposition method

compression rod instability theory method and bench test method respectively

the strength of link was checked and compared with the measured load value

and the accuracy of the three methods was evaluated. The results show that multi-body dynamics load decomposition method can accurately predict the critical load

the bench test method have some errors

and the the compression rod instability theory cannot be directly used for strength check of link. Fatigue simulation and optimization of link were carried out by combining nominal stress method and load spectrum of multi-body dynamics decomposition. The fatigue mileage predicted by simulation is 12 143 km

the relative error value with real life is 14%

which proves validity of simulation method. The structural improvement of the dangerous part of link body port eliminates stress concentration of it

and makes the design life of link meet the service requirements.

关键词

载荷谱多体动力学虚拟迭代疲劳损伤

Keywords

Load spectrumMulti-body dynamicsVirtual iterationFatigue damage

references

王国丽，黄小海，刘树辉，等. 汽车悬架稳定杆连杆支架的疲劳仿真分析及结构优化［J］. 工程设计学报，2013，20（1）：18-21.

WANG Guoli，HUANG Xiaohai，LIU Shuhui，et al. Fatigue simulation and structure optimization of suspension stabilizer link bracket［J］. Chinese Journal of Engineering Design，2013，20（1）：18-21.（In Chinese）

王建伟，梅烨，周海超. 汽车横向稳定杆轻量化设计方法研究［J］. 机械设计，2019，36（9）：97-102.

WANG Jianwei，MEI Ye，ZHOU Haichao. Research on light- weight design of the automobile’s lateral stabilizer bar［J］. Journal of Machine Design，2019，36（9）：97-102.（In Chinese）

李小珊，韦宝侣，张庆，等. 基于悬架非线性特性的稳定杆连杆建模方法研究［J］. 汽车工程，2018，40（6）：699-705.

LI Xiaoshan，WEI BaolÜ，ZHANG qing，et al. A study on modeling method of stabilizer rod based on nonlinear characteristics of suspension［J］. Automotive Engineering，2018，40（6）：699-705.（In Chinese）

单辉祖. 材料力学（I）［M］. 北京：高等教育出版社，2014：319-337.

SHAN Huizu. Mechanics of materials（I）［M］. Beijing：Higher Education Press，2014：319-337.（In Chinese）

竺福清，胡志刚，赵鹏程，等. 基于有限元的稳定杆连杆疲劳性能研究［C］. 第七届中国CAE工程分析技术年会论文集，2011：98-104.

ZHU Fuqing，HU Zhigang，ZHAO Pengcheng，et al. Research on fatigue performance of stabilizer bar connecting rod based on finite element method［C］. Proceedings of the 7th China CAE Engineering Analysis Technology Annual Conference，2011：98-104.（In Chinese）

徐国权. 横向稳定杆支座疲劳开裂分析及其台架实验［J］. 机械设计与研究，2018，34（3）：150-153.

XU Guoquan. Fatigue cracking analysis and bench test of a lateral stabilizer bar bracket［J］. Machine Design & Research，2018，34（3）：150-153.（In Chinese）

董冠文，李宗义，赵彦军，等. 压杆稳定临界力欧拉公式统一推导［J］. 武汉工程大学学报，2012，34（12）：71-74.

DONG Guanwen，LI Zongyi，ZHAO Yanjun，et al. Unified deduction of pressure lever stability critical force Euler formula［J］.Journal of Wuhan Institute of Technology，2012，34（12）：71-74.（In Chinese）

许期英，钟自锋. 汽车横向稳定杆疲劳寿命分析及其优化设计［J］. 机械强度，2019，41（5）：1228-1232.

XU Qiying，ZHONG Zifeng. Fatigue life analysis and optimization design of vehicle horizontal stabilizer bar［J］. Journal of Mechanical Strength，2019，41（5）：1228-1232.（In Chinese）

DONG P S，HONG J K，ABILIO M P，et al. Analysis of recent fatigue data using the structural stress procedure in ASME Div 2 Rewrite［J］. Journal of Pressure Vessel Technology，2007，129（3）：355-362.

WANG B H，LI K X，LU P M. Research on welding structure with transition changing faces at cylinder block on boom of medium excavator by means of hot spot stress approach［J］. Journal of Failure Analysis and Prevention，2018，18（5）：1127-1132.

周张义，王雨舟，杨欣. 基于不同应力法的焊接构架纵向角接头疲劳累积损伤评估［J］. 焊接学报，2018，39（8）：18-22．

ZHOU Zhangyi，WANG Yuzhou，YANG Xin. Fatigue cumulative damage assessment of longitudinal corner joints of welded frames based on different stress methed［J］. Transactions of the China Welding Institution，2018，39（8）：18-22.（In Chinese）

韩用. 基于试验场实测载荷谱的皮卡车钢板弹簧疲劳损伤分析［D］. 秦皇岛：燕山大学，2021：15-16.

HAN Yong. Fatigue damage analysis of pickup truck leaf springs based on road load spectrum of the proving ground［D］. Qinhuangdao：Yanshan University，2021：15-16.（In Chinese）

董国疆，王威，杜飞，等.虚拟迭代法转向节载荷谱提取与验证［J］. 机械强度，2020，42（6）：1323-1331.

DONG Guojiang，WANG Wei，DU Fei，et al. Extraction and verification of load spectrum of steering knucle based on virtual iteration method［J］. Journal of Mechanical Strength，2020，42（6）：1323-1331.（In Chinese）

杜建，于人杰，肖攀，等. 载荷分析方法与下摆臂疲劳性能关系研究［J］. 机械强度，2021，43（4）：945-954.

DU Jian，YU Renjie，XIAO Pan，et al. Research on the reationship between load analysis method and fatigue of lower control arm［J］. Journal of Mechanical Strength，2021，43（4）：945-954.（In Chinese）

尤明庆. 端部切向载荷作用下的压杆失稳分析及其应用［J］. 力学季刊，2019，40（1）：160-166.

YOU Mingqing. Analyses on the instability of a pole loaded by tangential force at one end and its application［J］. Chinese Quarterly of Mechanics，2019，40（1）：160-166.（In Chinese）

章德发，赖劼修. 汽车用60Si2Mn钢前稳定杆断裂分析及优化设计［J］. 机械工程材料，2020，44（8）：88-92.

ZHANG Defa，LAI Jiexiu. Optimization design and fracture analysis of 60Si2Mn steel front stabilizer bar for automobile［J］. Materials for Mechanical Engineering，2020，44（8）：88-92.（In Chinese）

王廷伟，黄丽华，刘明，等. 细长压杆的失稳点及临界压力的确定方法研究［J］. 力学与实践，2014，36（3）：345-347.

WANG Tingwei，HUANG Lihua，LIU Ming，et al. The determination of buckling point and critical load of compressive member［J］. Mechanics in Engineering，2014，36（3）：345-347.（In Chinese）

李相杰，阳光武，肖守讷，等. 基于疲劳试验和断裂仿真的地铁障碍物检测装置寿命预测［J］. 机械强度，2021，43（6）：1442-1449.

LI Xiangjie，YANG Guangwu，XIAO Shoune，et al. Life prediction of metro obstacle detector based on fatigue test and fracture simulation［J］. Journal of Mechanical Strength，2021，43（6）：1442-1449.（In Chinese）

杜建，黄丽美，魏敏先，等. 转向节多轴虚拟试验台架载荷谱应用研究［J］. 机械强度，2023，45（1）：198-208.

DU Jian，HUANG Limei，WEI Minxian，et al. Application research on load spectrum of steering knuckle multi-axis virtual test bench［J］.Journal of Mechanical Strength，2023，45（1）：198-208.（In Chinese）

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