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The paper describes the features of using the method of damped mechanical vibrations for express diagnostics of current collectors without removing from electric rolling stock roof. The proposed method is based on preliminary determination of the mechanical characteristics of the system of movable frames of a serviceable current collector in the factory. The paper describes a technique that can significantly reduce the complexity of conducting this type of research, increase the speed of measurement, and reduce the influence of the human factor.

Damped vibrations method for measuring the rigidity of a system of movable frames of a current collector on the roof of an electric locomotive