Overhead contact lines (OCLs) are subject to longitudinal displacement due to factors such as temperature changes and external forces. Excessive OCL longitudinal displacement may prevent tensioning devices from performing their proper tension adjustment function. It is therefore important to develop a method for calculating and predicting OCL longitudinal displacement in response to changes in temperature and external forces. This paper presents a model for representing OCL longitudinal displacement on a curved track installing tensioning devices and hinged cantilevers at each support point and proposes a method for calculating the equilibrium points of this displacement.
YAMASHITA et al. (Sun,) studied this question.