Scientific journal
Scientific Review. Technical science
ISSN 2500-0799
ПИ №ФС77-57440

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THE RESEARCH OF STRESS STATE OF THE PRESS ROLL COATINGS OF THE PAPERMAKINGMACHINES

Korolev A.V. 1 Sannikov A.A. 1
1 The Ural State Forest Engineering University
In the article we consider the problem of modeling of the stress-strain state of the press roll polyurethane coatings finite element method.In calculations are used real materials. These materials are used for lining of press rolls of papermaking machines.Physical and mechanical properties of the materials were specified to according to data of diagram «stress-strain».In article has described the sequence of construction of the contact model. The calculations of the stress state made for the coatings different thickness.Normal stress and shear stress in the contact area, the magnitude of displacement rolls are defined under real loads. Relation was found between the magnitude of shear stresses and adhesive strength of the «metal-polymer». Numerical results are presented in the form of paintings of stresses and displacements, as well as graphs.