越野赛车双横臂悬架的多体动力学仿真与强度分析
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摘要
为了使悬架的结构设计更加合理且具有更加可靠的使用性能,利用ADAMS/Car建立双横臂悬架的运动仿真模型,根据整车相关参数计算仿真边界条件,选择在单侧凸包、紧急制动、极限转向3种悬架承受载荷较大的工况下进行运动仿真分析,并从中提取悬架各铰接点的载荷作为有限元分析求解的边界条件。利用HyperMesh对双横臂悬架进行不同工况下的静态强度分析,研究应力分布情况,为悬架结构轻量化设计提供参考依据。
In order to make the structural design of the suspension more reasonable and have more reliable performance,the simulation model of double wishbone suspension was established using ADAMS/Car. The simulation boundary conditions were calculated according to the relevant parameters of the vehicle. The three suspensions with unilateral convex hull,emergency braking and extreme steering were selected to perform the movement for simulation analysis under heavy load conditions,from which the load of the suspension joints were extracted as the boundary conditions for the finite element analysis. Hyper Mesh was used to analyze the static strength of the double wishbone suspension under different working conditions and study the stress distribution. It can provide a reference for the lightweight design of the suspension structure.
In order to make the structural design of the suspension more reasonable and have more reliable performance,the simulation model of double wishbone suspension was established using ADAMS/Car. The simulation boundary conditions were calculated according to the relevant parameters of the vehicle. The three suspensions with unilateral convex hull,emergency braking and extreme steering were selected to perform the movement for simulation analysis under heavy load conditions,from which the load of the suspension joints were extracted as the boundary conditions for the finite element analysis. Hyper Mesh was used to analyze the static strength of the double wishbone suspension under different working conditions and study the stress distribution. It can provide a reference for the lightweight design of the suspension structure.
引文
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[9]李海峰,吴冀川,刘建波,等.有限元网格剖分与网格质量判定指标[J].中国机械工程,2012,23(3):368-377.LI H F,WU J C,LIU J B,et al.Finite Element Mesh Generation and Decision Criteria of Mesh Quality[J].China Mechanical Engineering,2012,23(3):368-377.
[10]余志生.汽车理论[M].5版.北京:机械工业出版社,2009.
[2]陈军.MSC·ADAMS技术与工程分析实例[M].北京:中国水利水电出版社,2008.
[3]朱秀娟.有限元分析网格划分的关键技巧[J].机械工程与自动化,2009(1):185-186.ZHU X J. Pivotal Skills in Grid Division in FEA[J]. Mechanical Engineering&Automation,2009(1):185-186.
[4]张琦,郑松林,金晓春,等.汽车后转向节轻量化设计及试验验证[J].现代制造工程,2014(4):42-47,35.ZHANG Q,ZHENG S L,JIN X C,et al.The Topology Optimization Design and Experimental Verification of Steering Knuckle[J]. Modern Manufacturing Engineering,2014(4):42-47,35.
[5]沈光烈,谢义杰.惯性释放法在车辆有限元分析中的应用及缺陷[J].客车技术与研究,2016,38(5):1-3,12.SHEN G L,XIE Y J.Application and Defects of Inertial Release Method in Vehicle Finite Element Analysis[J].Bus&Coach Technology and Research,2016,38(5):1-3,12.
[6]袁世林,宛银生,周磊,等.麦弗逊悬架下摆臂分析及优化[J].汽车实用技术,2017(20):111-113.YUAN S L,WAN Y S,ZHOU L,et al. Optimization Design of Macpherson Suspension Lower Control Arm[J].Automobile Technology,2017(20):111-113.
[7]田应刚,王霄锋,周建明,等.轿车前悬架的有限元分析[J].清华大学学报(自然科学版),2001,41(8):90-93.TIAN Y G,WANG X F,ZHOU J M,et al.Finite Element Analysis of a Front Suspension[J].Journal of Tsinghua University(Science and Technology Edition),2001,41(8):90-93.
[8]林光典,胡习之,李彬,等.基于HyperMesh的网格质量优化分析[J].机械工程师,2013(9):71-74.LIN G D,HU X Z,LI B,et al.Optimization Analysis of the Grid Quality Based on HyperMesh[J].Mechanical Engineer,2013(9):71-74.
[9]李海峰,吴冀川,刘建波,等.有限元网格剖分与网格质量判定指标[J].中国机械工程,2012,23(3):368-377.LI H F,WU J C,LIU J B,et al.Finite Element Mesh Generation and Decision Criteria of Mesh Quality[J].China Mechanical Engineering,2012,23(3):368-377.
[10]余志生.汽车理论[M].5版.北京:机械工业出版社,2009.