Wytrzymałość Cięgien Nośnych Górniczego Naczynia Wydobywczego

Wolny, Stanisław; Badura, Sławomir

doi:10.7862/rb.2017.60

Cited by 2 publications

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“…Measurement results registered as digital data sets were analysed using the MatlaB software and the result of computer-assisted analysis are shown in the graphic form in figs 6-9. [14] actually, plots of force in load-bearing ropes (fig. 6) and plots of stress at selected measurement points (point 1 -fig.…”

Section: Measurement Results -Discussionmentioning

confidence: 99%

Archives of Mining Sciences

Wolny¹

2021

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StaniSław wolny 1* ExpErimEntal VErification of thE StatE of StrESS in load BEaring caBlES in a hoiSting inStallation duE to random miSalignmEntS and irrEgularitiES of thE guidE StringSIn order for the ultimate state methods to be applied in dimensioning of the load-bearing elements in a conveyance, it is required that their design loads during their normal duty cycle and under the emergency braking conditions should be first established.Recently, efforts have been made to determine the interaction forces between the shaft steelwork and the conveyance under the normal operating condition [1,2]. Thus far, this aspect has been mostly neglected in design engineering.Measurement results summarised in this paper and confronted with the theoretical data [3] indicate that the major determinant of fatigue endurance of conveyances is the force acting horizontally and associated with the conveyance being hoisted in relation to the vertical force due to the weight of the conveyance and payload.

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Section: Measurement Results -Discussionmentioning

confidence: 99%

Archives of Mining Sciences

Wolny¹

2021

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“…all of which are described mathematically using the underlying dependencies applied energetic methods of calculating the displacement of rods (Lisowski & Siemieniec, 1973;Niezgodziński, 1979;Wolny, 2008) and the following signs: E, G -modulus of elasticity of rod material, respectively Young's modulus, Kirchhoff 's, Pa; F -cross-section area of the investigated pull rod segment, m 2 ; J b , J c -inertia moments of the cross-section F with respect to its neutral axes for bending of the investigated pull rod segment in the lateral and frontal motion, respectively, m 4 ; J s -equivalent moment of inertia of the cross section F in free torsion, m 4 ; L -as indicated in Fig. 5, m;…”

Section: Modified Assumptions Underlying the Equations Expressing The...mentioning

confidence: 99%

Archives of Mining Sciences

Płachno

2018

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A solution is suggested to the problem which has received a great deal of researchers' attention in the last twenty years involving the development of a mathematical model of transverse vibration experienced by high-capacity mining skips while they traverse the shaft. Such model, particularly useful when investigating fatigue damage of hoisting skips, is still being sought by engineering practitioners responsible for hoist safety. Models proposed so far have been found unsatisfactory, which was corroborated by research data showing that the underlying assumptions and involved equations need to be modified. This paper highlights the suggested modifications, basing on measurement data and the modified version of the model is verified against those data.

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Wytrzymałość Cięgien Nośnych Górniczego Naczynia Wydobywczego

Cited by 2 publications

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Archives of Mining Sciences

Archives of Mining Sciences

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