Виброизмерения рам тележек вагонов метрополитена в эксплуатационных условиях

Abstract

The article represents the vibration-survey technique of bogie frames of transit vehicles under service conditions. The oscillogram processing was carried out by discrete Fourier transform. For this purpose program Microsoft Excel was used. The spectrum of external loading is defined. This loading is caused by track irregularities. Also the natural vibration spectrum of bogie frames is obtained and confirmed by experimental data. The results of this article will be used for solving the statistical dynamics problem and reliability prediction of bogie frames. The delay of external loading on the weel pairs of bogie frames is taken into account.