首页|期刊简介|投稿指南|分类索引|刊文选读|订阅指南|证明资料|样刊邮寄查询|常见问题解答|联系我们
戴振泳,李涛,宋廷伦,等. 减速带路面工况下线性和非线性模型悬架的最优阻尼比[J]. 科学技术与工程, 2020, 20(32): 13425-13430.
DAI Zhen-yong,李涛,宋廷伦,et al.Optimal Suspension Damping Ratio Study Using Linear and Non-linear Suspension Models under Speed Bump Road Conditions[J].Science Technology and Engineering,2020,20(32):13425-13430.
减速带路面工况下线性和非线性模型悬架的最优阻尼比
Optimal Suspension Damping Ratio Study Using Linear and Non-linear Suspension Models under Speed Bump Road Conditions
投稿时间:2019-12-09  修订日期:2020-07-28
DOI:
中文关键词:  减速带路面 最优阻尼比 非线性模型 频率加权滤波网格 振动计量值
英文关键词:speed bump road optimal damping ratio matching non-linear model frequency weighting filter vibration dose value
基金项目:安徽省新能源暨智能网联汽车创新发展工程专项
           
作者单位
戴振泳 南京航空航天大学能源与动力学院
李涛 奇瑞汽车股份有限公司
宋廷伦 奇瑞汽车股份有限公司
提艳 南京航空航天大学能源与动力学院
摘要点击次数: 153
全文下载次数: 76
中文摘要:
      为研究减速带路面工况下悬架最优阻尼比,搭建了二自由度汽车悬架线性及非线性模型,并采用Matlab/Simulink软件建立正弦截面减速带路面时域模型以通过仿真验证路面模型准确性。在此基础上,根据ISO标准中频率加权系数设计频率加权滤波网格;探讨脉冲输入下悬架线性模型的局限性,提出考虑车轮离地、撞击限位块场景下的二自由度悬架非线性模型;最后采用振动剂量值VDV和轮荷冲击系数k作为减速带路面工况下平顺性评价指标,仿真比较线性和非线性模型在考虑车轮离地、不同悬架限位块刚度以及不同行驶速度情况下的悬架最优阻尼比。研究表明仅考虑车轮离地非线性情况不会影响最优阻尼比,考虑撞击限位块时,不同限位块刚度以及不同车速均影响最优阻尼比. 该项研究结果为车辆悬架阻尼优化及控制提供了依据。
英文摘要:
      In order to study the optimal suspension damping ratio under speed bump road conditions, two-degree-of-freedom (DOF) vehicle suspension linear and non-linear models are established and a time domain model of the speed bump road with a sinusoidal cross section is built using Matlab/Simulink. The accuracy of the road model is verified through simulation. A frequency weighting filter is designed per ISO specification to effectively study the ride comfort under different frequency ranges. The limitations of the suspension linear model under impulse inputs is discussed and a non-linear suspension model considering wheel off the ground and limit blocks impact use cases is proposed. Finally, the Vibration Dose Value (VDV) and wheel load impact coefficient (k) are used as ride comfort evaluation metrics under speed bump road conditions to compare the optimal suspension damping ratios of the linear and non-linear models considering different suspension limit blocks and different driving speeds by simulation. Analysis results indicate that the wheel off the ground nonlinear use case does not affect the optimal suspension damping ratio whole both limit block stiffness and driving speed have impact on the optimal damping ratio. The result of this paper can be utilized for future research in vehicle suspension damping optimization and control.
查看全文  查看/发表评论  下载PDF阅读器
关闭
你是第35652562位访问者
版权所有:科学技术与工程编辑部
主管:中国科学技术协会    主办:中国技术经济学会
Tel:(010)62118920 E-mail:stae@vip.163.com
京ICP备05035734号-4
技术支持:本系统由北京勤云科技发展有限公司设计

京公网安备 11010802029091号