Modeling of Pantograph-Catenary dynamic stability
نویسندگان
چکیده
The purpose of this paper is to describe the possibilities of studying the influence of forces external variables on the stability of motion of dynamical systems modeled by systems of differential equations with periodic coefficients of stability. The method is applied to analyze the influence of external harmonic forces on the stability of motion of the pantograph couple contact wire electric locomotive. The system parameters consist of two concentrated loads, the bending stiffness, tensile horizontal viscous damping and that the mass per unit length of the yarn, the other coefficients of damping and stiffness of the system elements and a constant speed specified in the template. We study the stability of the system using these parameters. In this study, we analyze a review based on background studies on pantograph systems.
منابع مشابه
A Three-Dimensional Calculation for Dynamic Pantograph-Catenary Interaction
Dynamic pantograph-catenary interaction is one of the most critical aspects to consider in catenary design, especially in high-speed rails. It is essential to maintain a constant power transmission in order to achieve high speeds and avoid the production of electric arcs, which damage the wires. This paper shows a tool, called InDiCa 3D, based on a three-dimensional model to solve the dynamic p...
متن کاملPantograph-Catenary System Modeling Using MATLAB-Simulink Algorithms
Contacts between pantograph and catenary are the most critical parts in the transmission of electrical energy for modern high-speed trains. Contact wire oscillations change combined force between pantograph and catenary, and the contact may even get lost. Therefore special pantographs and catenaries have been developed and further constructive changes are under development. A design criterion i...
متن کاملCatenary emulation for hardware-in-the-loop pantograph testing with a model predictive energy-conserving control algorithm
Pantograph current collectors, especially for high-speed trains, need to ensure safe contact with the catenary under stringent requirements on the dynamic contact force. A novel, high-dynamic pantograph test rig with accurate virtual catenary emulation is presented that allows for efficient, realistic, and reproducible testing. The complex dynamics of the pantograph/catenary interaction is mode...
متن کاملHigh-speed railway pantograph and catenary dynamic simulation system modelling and verification
The dynamic simulation system of a pantograph and a catenary has been built by using the finite element method, in which the pantograph is equivalent to a threemass-damper-stiffness system and the catenary contains only cable and beam elements. Considering droppers as nonlinear elements only stressed by tension, a sliding contact model of the pantograph and catenary is coupled by penalty functi...
متن کاملMultiple Pantograph Interaction with Catenaries in High-Speed Trains
This work presents a fully three-dimensional methodology for the computational analysis of the interaction between catenary and pantographs. The finite element method is used to support the modeling of the catenary while a multibody dynamics methodology is applied to support the pantograph modeling. The contact between the two subsystems is described using a penalty contact formulation. An high...
متن کامل