Analysis of Dynamic Characteristics of Dropper in Catenary System
摘要
A finite element method is used to simulate the catenary, in which rod elements were used to simulate the dropper. The vibration amplitude and dropper-force when the pantograph passes at a constant speed are calculated. The results indicate that the coupling effect between the pantograph and the contact wire causes the amplitude of the dropper to exceed 5 mm at least 8 times. The first and sixth dropper s have the highest vibration amplitude, but their compression and dropper-force are the smallest. The fifth dropper has the highest dropper-force and compression, indicating that this dropper is the most susceptible to damage.