摘要
建立刚性悬挂接触网的自由振动有限元模型,计算其固有频率和振型.再通过受电弓与接触网间的接触力,建立弓网系统相互耦合的动力方程.用振型叠加法将以弓网系统的各个节点位移位为未知量的动力方程简化为以十个广义坐标和三个受电弓的质量块的位移为未知量的非线性方程.随着机车的行进,不断的改变弓网系统的刚度矩阵,运用Wilson-θ法,求解弓网系统的动力响应.最后对列车、接触网受电弓的各因素对受流的影响进行了分析.
The finite element model of the free vibration for the rigid suspension catenary and pantograph is set up. Then the natural frequency and the vibration mode are calculated. Using the contact force between catenary and pantograph, the dynamic equation of rigid suspension catenary/ pantograph system is established. The dynamic equation whose variables are the displacements of every node of the system is reduced to the nonlinear one whose variables are the ten generalized coordinates and the three displacements of the three masses of pantograph. While the marching of the locomotive, the dynamic response of the system will be known by changing the stiffness matrix of the system and solving the equation of the system using the Wilson -θ method. At last, the influence of the factors.of the train, the catenary and pantograph on the current acceptance is analyzed.
出处
《沈阳理工大学学报》
CAS
2007年第4期91-94,共4页
Journal of Shenyang Ligong University
关键词
刚性悬挂接触网
受电弓
动力
非线性
振型叠加法
rigid suspension catenary
pantograph
dynamics
nonlinear
vibration modal superposition method
作者简介
毕继红（1967-），女，江苏淮安人，教授，博士．
