Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Stanisław Wolny"'
Autor:
Agata Drzewosz, Stanisław Wolny
Publikováno v:
Applied Sciences, Vol 14, Iss 15, p 6472 (2024)
Investigating the influence of varying shaft steelwork stiffness on the stability of horizontal mass displacements, which are crucial elements of a conveyance-shaft steelwork system, is a significant step in evaluating the risk of parametric vibratio
Externí odkaz:
https://doaj.org/article/e80a9972a1a74fb6acf8529448d28230
Publikováno v:
New Trends in Production Engineering. 2:441-449
From information obtained from periodic surveys of cages used in the shaft of one of the Polish mines, it appears that the majority of registered damages of their supporting elements are fatigue cracks. These cracks are formed and develop mainly in m
Autor:
Stanisław Wolny
Publikováno v:
Archives of Mining Sciences. 62:279-288
This study investigates selected aspects of the dynamic behaviour of mine hoists during the emergency braking in an event of overtravel. Characteristics of the braking force that needs to be applied in the headgear and in the pit bottom to arrest the
Autor:
Stanisław Wolny
Publikováno v:
Archives of Mining Sciences. 62:45-54
The paper addresses the selected aspects of the dynamic behaviour of mine hoists during the emergency braking phase. Basing on the model of the hoist and supported by theoretical backgrounds provided by the author (Wolny, 2016), analytical formulas a
Autor:
Stanisław Wolny
Publikováno v:
Archives of Mining Sciences. 61:497-507
It has now become the common practice among the design engineers that in dimensioning of structural components of conveyances, particularly the load bearing elements, they mostly use methods that do not enable the predictions of their service life, i
Autor:
Sławomir Badura, Stanisław Wolny
Publikováno v:
Journal of Civil Engineering, Environment and Architecture.
Autor:
Stanisław Wolny
Publikováno v:
Archives of Mining Sciences. 59:297-306
Evaluation is made of the state of stress in load-bearing elements in conveyances. Relying on the design loads of load-bearing elements in conveyances given by the proposed method (Wolny & Łowkis, 2012), the state of stress in those components is ob
Autor:
Stanisław Wolny, Agata Drzewosz
Publikováno v:
MATEC Web of Conferences, Vol 285, p 00024 (2019)
In order that the ultimate state methods can be applied in dimensioning of the load-bearing elements in a conveyance it is required that their design loads should be determined during their normal duty cycle and under the emergency braking conditions
Autor:
Stanisław Wolny
Publikováno v:
MATEC Web of Conferences, Vol 285, p 00023 (2019)
This study summarises the research efforts undertaken to establish how variable stiffness of shaft steelwork should affect the amplitudes of horizontal displacements of selected components of a conveyance (skip head and skip bottom frame). Most studi
Autor:
Stanisław Wolny
Publikováno v:
Archives of Mining Sciences. 57:831-842
In order that the ultimate state method should be applied to the strength analysis of the tower-type headgear structure, it is required that the design loads and endurance parameters be first established. For that purpose the characteristics of loads