摘要
本文针对新型的浮置板减振轨道,建立了具有三次非线性和Coulomb摩擦阻尼的的动力学模型,利用Fourier级数法和谐波平衡法,研究了列车荷载作用下浮置板轨道系统的频率响应特性,通过对弹簧刚度、阻尼等参数的研究,分析了系统参数对浮置板轨道减振特性的影响,并应用能量守恒方法研究了稳态响应的稳定性。
The dynamical analysis of a floating track bed (FTB) system is presented. A dynamic model with three-order nonlinearity and Coulomb friction is set up. The frequency response characteristics of the system under vehicle load are analyzed via Fourier series analysis as well as harmonic balance method. The influences of system parameters, such as spring stiffness and damping, on vibration reduction performance are investigated. By using the concept of energy conservation, the stability of the steady motion is analyzed as well.
出处
《振动与冲击》
EI
CSCD
北大核心
2006年第2期51-54,共4页
Journal of Vibration and Shock
基金
国家自然科学基金项目(10472073
10172060)
关键词
浮置板轨道
非线性
减振
隔振
floating track bed, nonlinear, vibration reduction, vibration isolation
