Article(id=1322622386806051092, tenantId=1146029695717560320, journalId=1189621681917173762, issueId=1322622385379983486, articleNumber=null, orderNo=null, doi=10.19620/j.cnki.1000-3703.20260492, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=null, receivedDateStr=null, revisedDate=1787846400000, revisedDateStr=2026-08-28, acceptedDate=null, acceptedDateStr=null, onlineDate=1793267350149, onlineDateStr=2026-10-29, pubDate=1792771200000, pubDateStr=2026-10-24, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793267350149, onlineIssueDateStr=2026-10-29, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793267350149, creator=13701087609, updateTime=1793267350149, updator=13701087609, issue=Issue{id=1322622385379983486, tenantId=1146029695717560320, journalId=1189621681917173762, year='2026', volume='', issue='10', pageStart='1', pageEnd='62', issueExtLink='null', onlineDate='null', pubDate='1792771200000', pubDateStr='2026-10-24', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=1, specialIssue=null, createTime=1793267349810, creator='13701087609', updateTime=1793268459387, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1322627039367123647, tenantId=1146029695717560320, journalId=1189621681917173762, issueId=1322622385379983486, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1322627039367123648, tenantId=1146029695717560320, journalId=1189621681917173762, issueId=1322622385379983486, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=1, endPage=7, ext={EN=ArticleExt(id=1322622386982211861, articleId=1322622386806051092, tenantId=1146029695717560320, journalId=1189621681917173762, language=EN, title=Influence Mechanism of Dynamic Characteristics of the Front Suspension Lower Control Arm Rear Bushing on Brake Judder, columnId=null, journalTitle=Automobile Technology, columnName=null, runingTitle=null, highlight=null, articleAbstract=

To address the lack of in-depth analysis in existing research on the dynamic amplitude-frequency characteristics of bushings and their influence mechanisms under time-varying preload effects during braking, a systematic research methodology is proposed. This methodology integrates multi-body dynamics load calculation, bench testing, and full-vehicle validation. On this basis, a design optimization strategy for the bushing's limiting direction is developed based on its dynamic loading response under braking conditions. Dynamic simulation is used to calculate the loads on the rear bushing under different braking intensities. A rubber bushing testing machine is employed to measure the dynamic stiffness and loss angle under preload. Combined with finite element simulation and full-vehicle road tests, the influence mechanism of the Y-direction dynamic characteristics of the rear bushing on brake judder is systematically revealed. The results show that when the braking intensity increases from 0 g to 0.25 g, at a frequency of 15 Hz, the Y-direction dynamic stiffness of the rear bushing increases from 729 N/mm to 1 970 N/mm, and the loss angle decreases from 6.8° to 5.8°. The longitudinal rigid-body modal frequency of the front suspension increases from 11.5 Hz to 14.5 Hz. When this modal frequency exceeds the upper limit of the excitation frequency of braking torque fluctuations (17.4 Hz), brake judder disappears. This indicates that brake judder mainly occurs under low-to-medium braking intensity conditions. By reducing the compression-side clearance of the bushing during braking and optimizing the rubber compound formulation, the dynamic stiffness and loss angle at critical frequencies are significantly improved. The vibration response of the steering wheel is effectively suppressed.

, authors=Xiaohua Lu, Yongguang Xia, Xingchun Liu, Zuxiong Zheng, Maolin Ren, authorsList=Xiaohua Lu, Yongguang Xia, Xingchun Liu, Zuxiong Zheng, Maolin Ren, authorCompany=null, correspAuthors=null, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1322622387321950486, articleId=1322622386806051092, tenantId=1146029695717560320, journalId=1189621681917173762, language=CN, title=汽车前悬下控制臂后衬套动态特性对制动抖动的影响机制研究, columnId=0, journalTitle=汽车技术, columnName=, runingTitle=null, highlight=null, articleAbstract=

为解决现有研究缺乏对制动工况时变预载效应下衬套动态幅频特性及其影响机制深入分析的问题，提出一种融合多体动力学载荷计算、台架测试与整车验证的系统研究方法，同时基于制动工况动态加载响应的衬套限位方向设计优化策略。通过动力学仿真计算不同制动强度下后衬套的受载情况，采用橡胶衬套试验机测试预载下的动态刚度和损失角，结合有限元仿真与整车道路试验，系统揭示后衬套Y向动态特性对制动抖动的影响机理。试验结果表明：制动强度由0 g增至0.25 g时，15 Hz频率处后衬套Y向动刚度由729 N/mm升至1 970 N/mm，损失角由6.8°降至5.8°，前悬纵向刚体模态频率由11.5 Hz升至14.5 Hz；当模态频率高于制动力矩波动激励频率上限17.4 Hz时，制动抖动现象消失，说明制动抖动主要发生于低中强度制动工况。同时，通过缩短衬套制动受压侧间隙并优化胶料配方，可显著提升关键频率下的动刚度与损失角，有效抑制了转向盘的振动响应。

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