Вісник № 22
Постійне посилання колекціїhttps://repository.kpi.kharkov.ua/handle/KhPI-Press/2924
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Документ Виброизмерения рам тележек вагонов метрополитена в эксплуатационных условиях(НТУ "ХПИ", 2007) Жовдак, В. А.; Белоцерковский, Александр Борисович; Смирнов, М. М.; Ульянов, Юрий Николаевич; Яцько, С. И.; Черных, О. В.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.Документ Статистическая динамика строительных конструкций при сейсмическом воздействии(НТУ "ХПИ", 2007) Жовдак, В. А.; Торяник, А. В.An algorithm of solving the problem of statistical dynamics of finite element models of constructions is described. The nature of seismic influences is investigated and methods of their modeling by means of probability approaches are proposed. There are developed methodical instructions and software to investigate the dynamics of turbo-installation foundations under seismic influence with delay. The problem of statistic dynamics of beam model is solved by the developed algorithm.