Numerical Calculation of Total Radial Forces and Rotary Moments From the Cylinders Surface

Mechanical Science and Technology Update

力学;物理学

Panichkin, A.V.^1 ; Varepo, L.G.^2

S L Sobolev Omsk Branch of Institute of Mathematics of the Siberian Branch, Russian Academy of Sciences, Pevtsova st., 13, Omsk

644043, Russia^1

Omsk State Technical University, Mira ave., 11, Omsk

644050, Russia^2

关键词: Computational cell;    Contacting surfaces;    Deformation result;    Deformation speed;    Incompressible viscous liquids;    Numerical calculation;    Quantitative assessments;    Rotating cylinders;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/858/1/012025/pdf
DOI  :  10.1088/1742-6596/858/1/012025

学科分类：力学，机械学

来源: IOP

【 摘 要 】

The determining of the acting moments of force when the cylinder is characterized by roughness after the deformation of contacting surfaces of the rotating cylinders and the substrate while interacting with incompressible viscous liquid is still one of the main problems in printing. The numerical calculation of the radial forces and rotary moments with integral formulas for deforming surfaces was carried out with regard to the discrete grid at the grid points of the upper and lower cylinders surfaces and their deformation speeds. The paper considers the results of the numerical modeling for the quantitative assessment of rotary moments of radial forces from the cylinders surfaces, occurring during the transfer of incompressible viscous liquid on the substrate between two rotating cylinders. The definition of dynamic forces (radial and tangential force, moment of force) in the discrete form on the example of one computational cell is presented. It is noted, that the consideration of boundary deformation results in the decrease of the calculated dynamic values by 3-5 times as well as to the reducing of the ink bleeding near the boundaries of the printing surface.