某型号房车车身疲劳寿命分析  

Fatigue Life Analysis of a Certain Model of Recreational Vehicle Body

作　　者：陈利锴 冯国胜 田丰旭 李钊 CHEN Li-kai;FENG Guo-sheng;TIAN Feng-xu;LI Zhao(School of Mechanical Engineering,Shijiazhuang Tiedao University,Shijiazhuang 050043,Hebei,China;Hebei Waterway Automobile Manufacturing Co.Ltd.,Shijiazhuang 050011,Hebei,China)

机构地区：[1]石家庄铁道大学机械工程学院,河北石家庄050043 [2]河北航道汽车制造有限公司,河北石家庄050011

出　　处：《承德石油高等专科学校学报》2024年第6期41-46,共6页Journal of Chengde Petroleum College

摘　　要：为评估房车车身的疲劳寿命,首先通过Hyper Mesh与ANSYS Workbench建立某型号房车的有限元模型,利用惯性释放法对车身进行静态单位力响应分析,然后通过ADAMS/Car建立整车多体动力学模型,进行整车各级路面仿真,获取悬架与车身连接处的时域载荷谱。最后通过Ncode输入获得的载荷谱时间序列进行车身疲劳寿命分析,试验结果验证了仿真分析结果的有效性。In order to evaluate the fatigue life of recreational vehicle body,the finite element model of a certain type of recreational vehicle is first established through Hyper Mesh and ANSYS Workbench,the static unit force response analysis of the body is analyzed by the inertia release method,and then the multi-body dynamic model of the whole vehicle is established through ADAMS/Car,and the road surface simulation at all levels of the vehicle is carried out,the time-domain load spectrum at the connection between the suspension and the body is obtained.Finally,the load spectrum time series obtained by Ncode input is used to analyze the fatigue life of the body,and the experimental results verify the validity of simulation analysis results.

关 键 词：房车车身 有限元分析 多体动力学仿真 疲劳寿命 

分 类 号：U63.82[交通运输工程—船舶与海洋工程]