IMPACT OF THE 3D COMPRESSION EFFECT ON DETERMINING PARAMETERS FOR THE ELASTOMERIC PROTECTIVE LAYER

Details

Parent Category: Geo-Technical Mechanics, 2013

Category: Geo-Technical Mechanics, 2013, Issue 109

UDC 62-671:678.074:620.173

Authors:

V.P. Naduty, D.Sc. (Tech.), Professor,

V.V. Sukharyev, Ph.D. (Tech.), Researcher (IGTM NAS of Ukraine),

D.V. Beliushin, Doctoral Student (SHEE «NMU»)

Abstract.

The article presents results of experimental researches of impact of the 3D compression occurred at the impact loads due to the contact deformations of elastomeric protective layer on the working surfaces of mining machines. It is shown that contact rigidity of the deformable rubber plate in the liner increases by 20-45% to rigidity of elementary volume under the indenter due to the action of the 3D compression in the elastic plate containing the elementary volume in zone of deformation. The author revealed dependence between indentation force and area and hardness of the rubber liner at permanent depth of hardness indentation in zone of the rubber linear deformation. While calculating the liner thickness for maximal impact loads caused by falling pieces of rocks, it is recommended to take into account a fixed correction factor by way of increasing dynamic module of elastomer compression.  A formula is presented for re-calculating of the rubber hardness for the module used in the calculations.

Keywords:

rubber, static module, indentation force.

References:

1. Poturayev, V.N., Dyrda, V.I. ahd Naduty, V.P. (1974), Rezina v gornom dele [Rubber is on mountain business], Nedra, Moscow, USSR.
2. Poturayev, V.N., Dyrda, V.I. and Krush, I.I. (1975), Prikladnaya mekhanika reziny [Applied mechanics of rubber],Naukova dumka, Kiev, USSR.
3. Naduty, V.P., Sukharyev, V.V. and Beliushin, D.V. (2012), "Research of the tense state of working organ of oscillation machine with a protective layer at the shock loading", Vibratsi v tekhnitsi ta tekhnolohiyakh, no. 4, pp. 71-75.
4. Dyrda, V.I. ahd Chizhik, Ye. F. (2000), Rezinovyye detali v mashinostroyenii [Rubber details are in an engineer], Poligrafist, Dnepropetrovsk, Ukraine.

About the authors:

Naduty Vladimir Petrovich, Doctor of Technical Sciences (D.Sc.), Professor, Head of Department of Mechanics of Mineral Processing Machines and Processes, M.C. Polyakov Institute of Geotechnical Mechanics under the National Academy of Science of Ukraine (IGTM NASU), Dnepropetrovsk, Ukraine,  This email address is being protected from spambots. You need JavaScript enabled to view it.

Sukharyev Vitaliy Vitalievich, Candidate of Technical Sciences (Rh.D), Researcher in Department of Mechanics of Mineral Processing Machines and Processes, M.C. Polyakov Institute of Geotechnical Mechanics under the National Academy of Science of Ukraine (IGTM NASU), Dnepropetrovsk, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it. ,

Beliushin Dmitriy Vladimirovich, Doctoral Student of the State Higher Educational Establishment  "National Mining University", Zaporozhye iron-ore combine, designer, Dnepropetrovsk, Ukraine.

 

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