刚柔耦合重型汽车建模及通过连续减速带的平顺性分析
|
摘要
建立了考虑车架柔性的刚柔耦合重型汽车整车模型,通过与刚性车对比,验证了所建刚柔耦合车辆模型的正确性.依据实际需求建立了三组连续减速带模型,以车身垂向加速度和各轮垂向轮胎力为评价指标,分析车辆行驶速度、减速带高度和宽度对汽车行驶平顺性的影响.研究表明,减速带的高度与车身垂向加速度和垂向轮胎力成正比,减速带宽度与车身垂向加速度和垂向轮胎力成反比,对于限速60 km/h的道路,宽度为600 mm,高度为8 mm的减速带能起到良好的限速效果,同时还能保证车辆行驶的平顺性.
Considering the flexible frame,a rigid-flexible coupled model for three-axle heavy-duty truck is built.By comparing with the rigid vehicle model,the validity of the rigid-flexible coupled vehicle model is verified.Three models of continuous speed bumps are established based on actual requirements. Taking the vertical acceleration and the vertical tire force as the evaluation index,the effects of vehicle speed,the height and width of continuous speed bumps on vehicle ride comfort are analyzed. Research results show that the height of speed bumps is proportional to vehicle body vertical acceleration and vertical tire force,whereas the width of speed bumps is inversely proportional to vehicle body vertical acceleration and vertical tire force. The speed bumps with a width of 600 mm and a height of 8 mm show a good effect of speed limit at 60 km/h,and ensure the vehicle ride comfort.
Considering the flexible frame,a rigid-flexible coupled model for three-axle heavy-duty truck is built.By comparing with the rigid vehicle model,the validity of the rigid-flexible coupled vehicle model is verified.Three models of continuous speed bumps are established based on actual requirements. Taking the vertical acceleration and the vertical tire force as the evaluation index,the effects of vehicle speed,the height and width of continuous speed bumps on vehicle ride comfort are analyzed. Research results show that the height of speed bumps is proportional to vehicle body vertical acceleration and vertical tire force,whereas the width of speed bumps is inversely proportional to vehicle body vertical acceleration and vertical tire force. The speed bumps with a width of 600 mm and a height of 8 mm show a good effect of speed limit at 60 km/h,and ensure the vehicle ride comfort.
引文
1商俊敏.基于虚拟现实与虚拟样机的汽车平顺性研究[硕士学位论文].杭州:浙江大学,2005(Shang J M.Study of vehicle ride comfort based on virtual reality and virtual prototype[Master Thesis].Hangzhou:Zhejiang University,2005(in Chinese))
2陈旭,伍镜儒,贾万明等.基于虚拟样车的整车平顺性分析.重庆理工大学学报,2012,26(9):8~13(Chen X,Wu J R,Jia W M,et al.The ride comfort of the vehicle virtual prototype based on analysis.Journal of Chongqing University of Technology,2012,26(9):8~13(in Chinese))
3 Neto A C,Ferraro L C,Veissid V L,et al.Comfort study of a medium sized truck consi-dering frame flexibility with the use of ADAMS.In:International Truck&Bus Meeting&Exposition,1999
4杨英武,韩舟轮,王柏生等.车辆通过减速带引起的振动分析.振动工程学报,2007,20(5):502~506(Yang Y W,Han Z L,Wang B S,et al.Vibration analysis of vehicle passing through a deceleration belt.Journal of Vibration Engineering,2007,20(5):502~506(in Chinese))
5王鑫.车架柔性对重型载货汽车操纵稳定性、平顺性影响的仿真分析[硕士学位论文].长春:吉林大学,2012(Wang X.Simulation analysis of the influence of frame flexibility on handling stability and ride comfort of heavy duty truck[Master Thesis].Changchun:Jilin University,2012(in Chinese))
6 Wu G,Fan G,Guo J.Ride comfort evaluation for road vehicle based on rigid-flexible coupling multibody dynamics.Theoretical and Applied Mechanics Letters,2013,3(1):013004
7王登峰,郝赫,刘盛强等.车架弹性对重型载货汽车行驶平顺性的影响.农业机械学报,2010,41(12):7~12(Wang D F,Hao H,Liu S Q,et al.Effects of frame elasticity on ride comfort of heavy duty vehicles.Proceedings of the Chinese Society of Agriculture,2010,41(12):7~12(in Chinese))
8李灿,李韶华,黄宏伟.道路连续减速带对重载汽车平顺性影响.动力学与控制学报,2012,10(3):273~5(Li C,Li S H,Huang H W.Influence of road continuous deceleration belt on ride comfort of heavy duty vehicles.Journal of Dynamics and Control,2012,10(3):273~5(in Chinese))
9 Sun Y,Dong D,Yan B,et al.Notice of Retraction Research on riding quality of high speed train based on the rigid-flexible coupling model.In:International Conference on Computer Engineering and Technology.IEEE,2010:V5-535-V5-539
10李灿.基于虚拟样机技术的重型载货汽车平顺性及道路友好性研究[硕士学位论文].石家庄:石家庄铁道大学,2013(Li C.Study on ride comfort and road friendliness of heavy duty truck based on virtual prototype technology[Master Thesis].Shijiazhuang:Shijiazhuang University of Railway,2013))
2陈旭,伍镜儒,贾万明等.基于虚拟样车的整车平顺性分析.重庆理工大学学报,2012,26(9):8~13(Chen X,Wu J R,Jia W M,et al.The ride comfort of the vehicle virtual prototype based on analysis.Journal of Chongqing University of Technology,2012,26(9):8~13(in Chinese))
3 Neto A C,Ferraro L C,Veissid V L,et al.Comfort study of a medium sized truck consi-dering frame flexibility with the use of ADAMS.In:International Truck&Bus Meeting&Exposition,1999
4杨英武,韩舟轮,王柏生等.车辆通过减速带引起的振动分析.振动工程学报,2007,20(5):502~506(Yang Y W,Han Z L,Wang B S,et al.Vibration analysis of vehicle passing through a deceleration belt.Journal of Vibration Engineering,2007,20(5):502~506(in Chinese))
5王鑫.车架柔性对重型载货汽车操纵稳定性、平顺性影响的仿真分析[硕士学位论文].长春:吉林大学,2012(Wang X.Simulation analysis of the influence of frame flexibility on handling stability and ride comfort of heavy duty truck[Master Thesis].Changchun:Jilin University,2012(in Chinese))
6 Wu G,Fan G,Guo J.Ride comfort evaluation for road vehicle based on rigid-flexible coupling multibody dynamics.Theoretical and Applied Mechanics Letters,2013,3(1):013004
7王登峰,郝赫,刘盛强等.车架弹性对重型载货汽车行驶平顺性的影响.农业机械学报,2010,41(12):7~12(Wang D F,Hao H,Liu S Q,et al.Effects of frame elasticity on ride comfort of heavy duty vehicles.Proceedings of the Chinese Society of Agriculture,2010,41(12):7~12(in Chinese))
8李灿,李韶华,黄宏伟.道路连续减速带对重载汽车平顺性影响.动力学与控制学报,2012,10(3):273~5(Li C,Li S H,Huang H W.Influence of road continuous deceleration belt on ride comfort of heavy duty vehicles.Journal of Dynamics and Control,2012,10(3):273~5(in Chinese))
9 Sun Y,Dong D,Yan B,et al.Notice of Retraction Research on riding quality of high speed train based on the rigid-flexible coupling model.In:International Conference on Computer Engineering and Technology.IEEE,2010:V5-535-V5-539
10李灿.基于虚拟样机技术的重型载货汽车平顺性及道路友好性研究[硕士学位论文].石家庄:石家庄铁道大学,2013(Li C.Study on ride comfort and road friendliness of heavy duty truck based on virtual prototype technology[Master Thesis].Shijiazhuang:Shijiazhuang University of Railway,2013))