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捣固装置作业时,通过激振与夹持动作的共同作用使道砟变得密实。激振使道砟处于运动状态,但激振同样干扰与之相连的夹持液压缸的油压稳定。在ADAMS中建立机械系统多体动力学模型,并与AMEsim中的液压系统模型进行联合仿真。分析激振对于夹持液压缸的干扰力,激振干扰力对夹持液压缸的油压影响以及蓄能器在油压稳定中所起的作用。结果表明,合理地选择蓄能器可以减小激振干扰力对油压稳定的干扰作用,使激振与夹持作用能有效合成,从而更好地密实道砟。
Tamping device operation, through the excitation and clamping action together to make the road 砟 become dense. Excitement makes Road 砟 in motion, but the vibration also interfere with the connected hydraulic cylinder holding the oil pressure stability. The multi-body dynamics model of mechanical system is established in ADAMS and the simulation is carried out with the hydraulic system model in AMEsim. The influence of vibration excitation on the clamping cylinder, the influence of vibration excitation on the hydraulic pressure of the clamping cylinder and the effect of the accumulator on the oil pressure stability are analyzed. The results show that the reasonable choice of the accumulator can reduce the interference of the exciting interference force to the stability of the oil pressure, and make the excitation and clamping effective synthesis, so as to better compact the road 砟.