汽车技术
汽車技術
기차기술
AUTOMABILE TECHNOLOGY
2015年
2期
8-11
,共4页
转向盘%怠速抖动%有限元模态分析%模态试验
轉嚮盤%怠速抖動%有限元模態分析%模態試驗
전향반%태속두동%유한원모태분석%모태시험
Steering wheel%Idle vibration%Finite element modal analysis%Modal test
针对某车型怠速工况下转向盘抖动问题，对整车进行了怠速振动试验并对转向盘进行了模态试验，确认转向盘系统与仪表板横梁及横梁与车身连接处的连接刚度不足导致整个转向系统模态下降，从而引起了共振。针对该问题建立了转向系统有限元模型，并根据模态试验结果对模型进行了验证。在该模型基础上对上述连接刚度进行了优化，对优化方案进行试验验证的结果表明该方案有效。
針對某車型怠速工況下轉嚮盤抖動問題，對整車進行瞭怠速振動試驗併對轉嚮盤進行瞭模態試驗，確認轉嚮盤繫統與儀錶闆橫樑及橫樑與車身連接處的連接剛度不足導緻整箇轉嚮繫統模態下降，從而引起瞭共振。針對該問題建立瞭轉嚮繫統有限元模型，併根據模態試驗結果對模型進行瞭驗證。在該模型基礎上對上述連接剛度進行瞭優化，對優化方案進行試驗驗證的結果錶明該方案有效。
침대모차형태속공황하전향반두동문제，대정차진행료태속진동시험병대전향반진행료모태시험，학인전향반계통여의표판횡량급횡량여차신련접처적련접강도불족도치정개전향계통모태하강，종이인기료공진。침대해문제건립료전향계통유한원모형，병근거모태시험결과대모형진행료험증。재해모형기출상대상술련접강도진행료우화，대우화방안진행시험험증적결과표명해방안유효。
To troubleshoot the cause of idle vibration of the steering wheel of a vehicle in idling, we make vehicle idling vibration test and steering wheel modal test, to determine that the resonance is caused by insufficient connection stiffness between instrument panel beam system and the steering wheel and the body that results in the decline of the entire steering system modal. To eliminate this problem, a finite element model of the steering system is created and validated according to the modal test results. The connection stiffness is optimized on the basis of the finite element model. The optimization proposal is tested, which demonstrates the effectiveness of this proposal.
