路面激励作用下的桥壳动载荷研究  

The Study on Dynamic Load of Axle Housing Under the Excitation of Road Surface

作　　者：归文强 袁小慧[1] GUI Wenqiang YUAN Xiaohui(School of Vehicle Engineering, Xi＇an Aeronautical University, Xi＇an 710077, China)

机构地区：[1]西安航空学院车辆工程学院,陕西西安710077

出　　处：《测试技术学报》2017年第1期34-39,共6页Journal of Test and Measurement Technology

摘　　要：针对在汽车行驶过程中桥壳容易发生疲劳破坏的情况,使用了一种操作方便、成本低、数据可靠的方法来获取桥壳处的动载荷信号.采集了汽车行驶在搓板路、鱼鳞坑路和扭曲路这3种典型路面上时桥壳处受到的加速度信号,通过对轮胎悬架系统进行求解计算得到桥壳处受到的力信号,以该力信号作为输入载荷对该桥壳进行了疲劳寿命预测,预测结果符合常理,该方法具有可参考性.Aiming at the case of fatigue damage of axle housing while the car is in motion,the dynamic load signal was obtained by a method with convenient operation,low cost and reliable data.Firstly,the acceleration signal of the axle housing was collected when the vehicle travel on three typical kinds of road surface,which include washboard road,pit road and twisted road Secondly,the force signal of the axle housing was obtained by solving the suspension system.Finally,Input the force signal as a load to predict the fatigue life of axle housing.The forecast is reasonable,and this method is referential.

关 键 词：桥壳 路面激励 力载荷 桥壳疲劳寿命 

分 类 号：TH113.1[机械工程—机械设计及理论]