摘要
针对某型带发电机组的出口列车,运用动力学分析软件建立了刚柔耦合车辆动力学仿真模型。并对柴油发电机处于工作状态,车辆在米轨上重载运行时,分析了不同的一系和二系悬挂系统的优选参数对车辆动力学性能的影响。在给定的悬挂参数范围内,结果表明内非线性临界速度随一系垂向刚度增大而增大;随二系垂向刚度增大而出现先增后减的趋势。不同速度下的横向平稳性受垂向阻尼影响较小,垂向平稳性随着二系垂向阻尼增大而降低并逐渐趋于稳定,二系垂向刚度对垂向平稳性影响较为复杂。
A rigid-flexible coupled model for simulating the dynamic performance of an export train with diesel engine generator is established by means of a dynamics analysis code. In the condition of a heavy-duty train running on the railway with the diesel engine working, the influence of the different optimization parameters of the suspension systems on the dynamic behavior of the train is analyzed. The result has shown that in the selected parameters range, the nonlinear critical speed increases with the first order suspension vertical stiffness increasing, while it increases at the beginning and decreases latter with the second order suspension vertical stiffness increasing. The variation of the vertical damping has less influence on the lateral smoothness at different speeds, while the vertical smoothness decreases gradually and tends to be stable with the damping increasing. However, the influence of the vertical stiffness of the second-order suspension on the vertical smoothness is quite complex.
出处
《噪声与振动控制》
CSCD
2014年第2期98-102,共5页
Noise and Vibration Control
基金
国家科技支撑计划资助项目(2009BAG12A04-C03)
关键词
振动与波
出口列车
刚柔耦合
悬挂参数
动力学性能
vibration and wave
export train
rigid-flexible coupled
suspension parameters
dynamics performance
