Dynamics simulation models of coupler systems for freight locomotive
Dynamics simulation models of coupler systems for freight locomotive
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发表时间：
2012
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通讯作者：
Wei-hua Ma
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作者：
Wei-hua Ma
分析了两种车钩系统的工作原理，在考虑钩尾摩擦副和实时调心台肩摩擦副的基础上，采用控制系统仿真方法建立了车钩系统模型，采用查表法建立了具有滞环特性的非线性缓冲器模型，并在两个8- 100型车钩组成的列车模型上对DFC-E100系统和13 A/QKX-100系统进行了仿真研究。计算结果表明，所建立的模型能合理地反映货车车钩系统的动态特性，DFC-E100型车钩系统只有在缓冲力大于一定值时才有明显的偏摆特性，而DFC-E100系统的调心台肩能有效防止车钩过度偏角，模拟值与现场试验值的误差为4.23%，13 A/QKX 100系统的摩擦副是控制车钩动力学性能的关键元件，并能防止车钩在缓冲状态下明显偏角。
The working principles of two types of coupler systems were analysed.Based on considering the friction pairs of coupler tails and real-time aligning shoulders,coupler system models were set up by using control system simulation method.Nonlinear draft gear with hysteresis characteristic was modelled by using table lookup method.DFC-E100 system and 13A/QKX-100 system were simulated in a train model consisting of two 8-axle locomotives and one simplified wagon.The theoretical calculation of carbody-stabilizing-coupler ability was performed.Calculation result indicates that the models can rationally reflect the dynamic behaviour of freight locomotive's coupler systems.The distinct angling behaviour of DFC-E100 system is only observed when buff forces are larger than a certain value,but the aligning shoulder of DFC-E100 system can effectively prevent coupler from excessive angling.The error of carbody-stabilizing-coupler ability between simulation value and field test value is 4.23%,and the error between theoretical calculation value and field test value is 10.65%.The friction pair of 13A/QKX100 system is key element in the control of coupler dynamic behaviour,and can prevent coupler from distinct angling under buff condition.1 tab,11 figs,15 refs.