Mathematical justification of direct and inverse dependences for determining ice load in block compensators of the overhead contact network

The article is devoted to the development of a mathematical framework of an automated system for monitoring the weight of overhead contact wires intended for early detection of ice and frost formations. Previous studies have derived relationships between the branch deflection angles, compensator parameters, and measured forces for two- and three-block compensating devices, and substantiated the minimum number of strain gauges required for accurate ice load monitoring. This paper transitions from relationships for the branch deflection angles to formulas directly linking the additional ice load to the force recorded by the strain gauge. It is shown that the difference in load transfer coefficients in these systems should be taken into account when selecting sensor sensitivity and configuring automated wire weight monitoring (AWM) data processing algorithms.

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