140 t铁水罐车动力学性能分析  

Dynamic Performance Analysis of 140 t Hot-metal Tank Car

作　　者：景安洲 阳光武[1] 肖守讷[1] 杨冰[1] 朱涛[1] JING Anzhou;YANG Guangwu;XIAO Shoune;YANG Bing;ZHU Tao(State Key Laboratory of Traction Power,Southwest Jiaotong University,Chengdu 610031 Sichuan,China)

机构地区：[1]西南交通大学牵引动力国家重点实验室,成都610031

出　　处：《铁道机车车辆》2022年第5期1-8,共8页Railway Locomotive & Car

基　　金：国家自然科学基金项目(51675446,U1534209)。

摘　　要：铁水罐车作为高炉和炼钢车间重要的运输设备,具有轴重大、对线路条件和运行速度要求高的特点,运行线路主要以小半径曲线为主。文中通过分析140 t铁水罐车结构的拓扑关系,建立了详细的多体动力学仿真模型,分析了空、重车的临界速度、几何曲线通过性能和S型小半径曲线通过安全性,最后计算并优选了合理的旁承间隙。结果表明:空、重车的临界速度分别为62 km/h和69 km/h,三轴转向架在最大偏斜和最大外移位置时均能安全通过R100 m的几何曲线。空、重车通过S型小半径曲线时,各安全性指标均满足GB/T 17426—1998的规定,但第三、六位轮对的动力学性能较差,需要重点监测。此外,旁承间隙对轮重减载率影响相对较大,分析得到合理的旁承间隙为13~20 mm。As an important transport equipment between blast furnace and steelmaking workshop,hot metal tank car has the characteristics of heavy axle load and high requirements for line condition and running speed with its running line mainly in small radius curve.Based on the analysis of the structural topological relationship of 140 t hot metal tank car,a detailed multi-body dynamics simulation model is established.Then analyzed the critical speed,geometric curve passing performance and S-shaped small radius curve safety of the empty and heavy vehicles.Finally,the reasonable side bearing clearance is calculated and optimized.The results show that the critical speeds of empty and heavy vehicles are 62 km/h and 69 km/h respectively,and the three-axis bogie can safely pass the geometric curve of R100 m at the maximum deflection and the maximum outward positions.When empty and heavy vehicles pass through S-shaped small radius curve,all safety indexes meet the GB/T 17426-1998.However,the dynamic performance of the third and sixth wheelsets is poor,so it is necessary to focus on monitoring.In addition,the side-bearing clearance has a relatively large influence on the wheel load reduction rate,and the reasonable side-bearing clearance is 13-20 mm.

关 键 词：铁水罐车 临界速度 几何曲线 安全性 旁承间隙 

分 类 号：U273.1[机械工程—车辆工程]