Investigation of a static rope with a cable break
DOI:
https://doi.org/10.32347/2410-2547.2022.108.349-359Keywords:
rubber, cable rupture, stress state, cable ropeAbstract
Abstract. Establishing the influence of changes in the temporary properties of rubber on the stress state of the rubber traction body with a damaged cable. The method of research consists in the analytical solution of the model of the humorous traction body taking into account the rupture of the cable continuity and the change in the properties of the rubber. The dependences of the change of the stress state of the traction body of the humotross with the broken structure due to the rheology of the rubber shell are established. An algorithm for determining the stress state of a rubber traction body in case of its failure is formulated. It is shown that the loads on the ropes caused by the rupture of one of them lead to a local redistribution of forces almost only between two cables - damaged and adjacent; when damaged, non-extreme cable forces change in almost only three cables - damaged and two related. There are no extreme values of the internal load forces of the cables, which depend on the change of the shear modulus of the rubber material over time.
Construction of a method for determining the influence of impulses of individual cables of a cable rubber rope on its stress state.
Development and solution of the model of stress-strain state of the cable rubber rope with breaks in the continuity of the cables.
Methods of determining the stress state of a cable rope with a damaged cable.
The mechanism and nature of the influence of the impulses of the continuity of the cable of the cable rubber rope on its stress-strain state.
The developed method allows to take into account the influence of cable bursts on the stress state of the humorous cable rope of arbitrary design. Its application will allow to reasonably determine the minimum reserves of strength under the condition of safe use of the rubber rope, including in case of rupture of individual cables.
The mechanism of influence of change of properties of rubber on pressure is established by a condition of a traction body taking into account a rupture of continuity of a cable and change of properties of rubber. Taking into account the dependence of the stress-strain state of the rope with local violations of the cable base on changes in mechanical properties of rubber provides the ability to predict the stress state of the rope to improve safety and reliability of rubber traction with a long service life.
References
Storozhenko L.I. New steel-reinforced concrete structural-cable structures / L.I. Storozhenko, G.M. Gasiy, S.A. Gapchenko // Collection of Science Works. Ser.: Galuzeve machine-building, business. - Poltava: PoltNTU, 2014. - VIP. 1. - S. 91-96.
I.V. Belmas, D.L. Kolosov, T.O. Chechel, O.M. Vorobjova, O.M. Chernish. Infusion of change in the hours of mechanical power of gumi on the stresses of the mill of the gumotrovoy traction body with a cable lug. Collection of Science Practices of the National University of Economics 2020 №61. With. 149-155.Sigarev E. N., Chernyatevich A. G., Chubin K.I., Zarandiya S.A. Desulfurization of hot metal by the injection of disperse magnesium through a submerged rotating. Steel in Translation, 2011. Vol. 41, № 6. Р. 487–491.
Belmas L., Kolosov D., Kolosov O., Onvshchenko S. Stress-strain state of a conveyor belt with cables of different rigidity and their breakages. Fundamental and applied researches in practice of leading scientific schools Volume 26, Namber 2, 2018 p 231-236.Sigarev E. N., Kochmola D. S., Chubin K. I. Vplivpokrivnogoshlakunaperebigkovshovoi de- sul’furatsiichavunu. Teoriyaipraktikametalurgii. 2018. №1–2. P. 67–75. [in Ukraine].
Ropai V.A. Mine balancing ropes: monograph / A.V. Rope. - Dnepropetrovsk: National Mining University, 2016 .-- 263 p.
Belmas I., Kolosov D. The stress-strain state of the stepped rubber-rope cable in bobbin of winding. Technical and GeoinformationelSistems in Mining. Taylor & Francis Group, London, UK 2011c. 211-214.
Volokhovsky V.Yu., Radin V.P., Rudyak M.B. Concentration of efforts in ropes and bearing capacity of damaged rubber cord conveyor belts. MPEI Bulletin No. 5, 2010, pp. 5-12.
Belmas I.V. The stressed state of the rubber cord belt in case of arbitrary damage to the cables. Problems of Strength and Reliability of Machines 1993, N6 p. 45-48.
Kolosov D.L., Bilous O.I., Gurov. I.A. The technique of the updated gumotrosovo line. Mathematical Problems of Technical Mechanics and Applied Mathematics - 2019. International Science Conference. Materials of the conference. Dnipro, Kam'yanske -2019 - s. 126-127.
Belmas I., Kolosov D., Onyshchenk S., Bobylova I. Partial restoration of tractive ability of rubber-cable tractive element with damaged cable base. Collection of Science Practices of the National University of Economics 2020 №60. With. 196-206.
Tantsura G.I. Gnuchki traction organ. Sticks for conveyor lines. - Dniprodzerzhynsk: DDTU, 2010 – 127р.
Belmas, I.V., Kolosov, D.L., Tantsura, A.I., &Konokh, Yu.V. (2009). Investigation of the influence of a rupture of a rope base on the strength of a rope of a stepped structure. Irreversible processes in nature and technology: Materials of scientific. conf. Moscow: MSTU im. N.E. Bauman, 2, 255-257.
Kolosov, D., Dolgov, O., Bilous, O., & Kolosov, A. (2015). The stress-strain state of the belt in the operating changes of the burdening conveyor parameters. Theoretical and Practical Solutions of Mineral Resources Mining, 585-590.
Kokhanenko, Y.V., Yasinsky, V.V., &Tsaripa, I.M. (2001). Pre-accumulation of the length of the edge effect in a sharuvate composite with transversely isotropic similar to mechanical characteristics. Strength Problems, (4), 127-137.
Downloads
Published
Issue
Section
License
This work is licensed under a Creative Commons Attribution 4.0 International License.
Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
