Contact Wire Vibration Observed by Super-Anamorphic Images


Katsushi MANABE, Mitsuo ABOSHI
This paper describes the analysis of the contact wire vibrations under pantograph passages observed by video images through an anamorphic optical lens. The method provides a means to get not only the vibration at some discrete points but also its destributions along the wire, which can afford us various quantities to determine the propagation of the wave. In particular, the gradient and the velocity of the displacement give the wave intensity that would closely influence the contact force. The contact forces are also estimated from the images.