Experimental research of the overhead contact line pylons of electrified transport

General intention of this research is to investigate possibility to identify damages occurred in overhead contact line pylons of electrified transport during their exploitation based on eigenvalues of the pylons. Metal thin-walled pylons are considered. Vibration detector “LEPTON” is introduced to experimentally obtain eigenvalues of the pylons. Fast Fourier Transformation is applied as general approach to obtain Amplitude-Frequency Characteristics of the structure. Results of experimental research of overhead contact line pylons of electrified transport are presented in this paper. Experimental data have been analyzed and conclusion about such an approach expediency is specified. Moreover, it is stated that basing on experimental data only (without any additional mathematical or finite element modelling introduction) main eigenvalue of the structure is able to be identified as 1.619-1.656 Hz range for twenty two observed pylons of Type I.