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Information × Registration Number 0305U001306, 0104U004272 , R & D reports Title Research fundamental dynamics characteristics drill pipe machine СБШС-250Н popup.stage_title Дослідження основних динамічних параметрів бурового ставу верстата СБШС-250Н Head Victor Khilov, Registration Date 04-02-2005 Organization National Mining University popup.description2 Find specter frequency oscillations drill pipe. Own frequencies of fluctuations chisel are investigated bars in operating modes drill and drilling accrued tube. Are appreciated numerical values of own frequencies rotating, crossing and longitudinal fluctuations chisel tube. In result carried out researches it is established: the lowest frequencies crossing fluctuations of a bar find in area basic and multiple frequencies of the worker mode. With growth of length of a chisel bar value frequencies crossing fluctuations approached also are shifted in area of lower importance values of own frequencies are not kept at escalating a bar. 4. A choice of a range working frequencies should it is made with the account from basics and multiple resonances.5635 Product Description popup.authors popup.nrat_date 2020-04-02 Close