六轴机车轴间轮径差对动力学性能影响的正交分析  

Orthogonal Analysis of the Influence of Wheel Diameter Difference on the Six-axes Locomotive Dynamic Performance

作　　者：张志超[1] 李谷[1] 储高峰[1] 

机构地区：[1]中国铁道科学研究院机车车辆研究所,北京100081

出　　处：《铁道机车车辆》2017年第2期1-5,23,共6页Railway Locomotive & Car

基　　金：国家自然科学青年基金资助项目(11202245)

摘　　要：基于正交试验方法基本思想,借助仿真计算手段正交分析了六轴电力机车各轴之间轮径差对其曲线通过动力学性能的影响。采用多体动力学SIMPACK软件建立某HX系列六轴机车的动力学分析模型,以机车运行安全性指标为分析指标,选取各轴轮径差以及机车速度为影响因素,按照正交试验分析表所列组合工况逐一进行动力学响应计算,最后采用极差法分析各影响因素对分析指标的影响规律。分析结果表明:(1)机车轴间轮径差对动力学性能影响相对较小,明显小于机车速度的影响;(2)机车曲线通过时第1轴运行安全性指标受前转向架内轮径差的影响明显大于后转向架,且脱轨系数和轮重减载率都随着第1轴轮径差的增大而增大,随着第2轴和第3轴轮径差的增大而减小。Based on the orthogonal test method, the influence of the wheel diameter difference of the 6 axes electric locomotive on its curve negotiation dynamic performance is investigated orthogonally by the simulation analysis in this paper. The dynamic analysis model of a certain HX-type locomotive is built by using SIMPACK. The running safety index is assumed to be the analysis index, and each wheel diameter differences of six axes and the locomotive speed are chosen as the influencing factors. Then the dynamic responses of all the cases in the orthogonal test analysis table are calculated one by one, and the influence rules of each influencing factor on the analysis index are researched by using the extremum difference analysis finally. The results show that for the locomotive curve negotiation the influence of the locomotive speed on the dynamic performance is much greater than that of the wheel diameter difference. And the influ- ences of wheel diameter differences in the front bogie on the first axis running safety index are obviously bigger than these in the rear bogie.

关 键 词：轴间轮径差 动力学性能 正交试验法 六轴机车 

分 类 号：U264.8[机械工程—车辆工程]