The parameters and factor analysis of special loads on mine head frames from jamming of a rising vessel
Abstract: In article the technique and results of mathematical modeling of special loadings mine head frames is resulted at a jamming of a rising vessel in elastic-plastic and absolutely rigid basis. Key parameters of special loadings which the total effort and a difference of efforts of a tension of branches of an elevating rope and as inertial loadings from cross-section fluctuations of designs mine head frames are installed. As a result of numerical experiments three groups of factors of influence on parameters of special loadings are installed: conditions of an emergency; characteristics of the elevating machine; dynamic characteristics of mine head frames . On the basis of the executed factorial analysis conditions of occurrence of extreme values of special loadings are certain. For mine elevating machines depending on conditions of an emergency and characteristics of elevating machines emergencies of two kinds are probable: Without break of an elevating rope and with break of an elevating rope. For small elevating machines on which having dug an elevating rope it is not possible, to emergency special loadings there corresponds factor of dynamism on a horizontal component of the main vector of loading 1,5-1,53. For other elevating machines for which having dug an elevating rope it is possible, the corresponding factor of dynamism makes 1-1,1.
Keywords: mine head frames; special loadings; the factorial analysis; extreme values of loadings.
Pages: 217-232.
For citation: Кushenko, V. N. The parameters and factor analysis of special loads on mine head frames from jamming of a rising vessel. – Text : electronic. – In: Metal Constructions. – 2006. – Vol. 12, N 4. – Р. 217-232. – URL: https://donnasa.ru/publish_house/journals/mk/2006-4/01_kuschenko.pdf (date of access: 21.11.2024). – ISSN 1993-3517.
Vol. 12, N 4 (2006)
Journal: Metal Constructions
Publish house: Donbas National Academy of Civil Engineering and Architecture
Journal: Metal Constructions
Publish house: Donbas National Academy of Civil Engineering and Architecture