The article uses a universal testing machine equipped with a temperature control box to analyze the temperature variation characteristics of the stiffness of the fastener rubber pad under extreme cold conditions.Through a vehicle track coupling dynamic model,the influence of the stiffness of the fastener rubber pad on the dynamic response performance during high-speed railway operation is described.Finally,using the field of view analysis method,the influence of fastener pad stiffness on the acceleration change rate,wheel load reduction rate,and wheel rail vertical force of high-speed railway trains under extremely cold and normal temperature conditions is completed,and corresponding suggestions are proposed accordingly.
关键词
扣件胶垫/静刚度温变/车辆-轨道耦合动力学/影响
Key words
fastener gasket/static stiffness temperature change/vehicle track coupling dynamics/influence
维普
万方数据