The effect of transport velocity upon spin torque

13th International Conference on Tribology

Alaci, S.^1 ; Ciornei, F.C.^1 ; Amarandei, D.^1 ; Irimescu, L.^1 ; Romanu, I.C.^1 ; Rotar, M.A.^1

Department of Mechanics and Technologies Stefan Cel Mare, University of Suceava, Str. Universitatii 13, Suceava

720229, Romania^1

关键词: Experimental validations;    Friction torque;    Paper analysis;    Rotation motions;    Theoretical modeling;    Translational motions;    Translational velocity;    Transport velocity;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/174/1/012008/pdf
DOI  :  10.1088/1757-899X/174/1/012008

来源: IOP

【 摘 要 】

The paper analysis the effect produced by superposition of a rotation motion from contact area on a transport translational motion, having the same value for all contact points. A theoretical model is proposed for the calculus of the total friction torque. The deduced expression shows that the friction torque has a maximum value when the translational velocity is zero and rapidly decreases with increasing the translational velocity. The diminishing is not uniform, but is more evident at the beginning, when the ratio between the transport velocity and angular velocity is comparable to the radius of contact area and, afterwards, the decline of the friction torque is slower. The last part of the paper proposes a solution for an experimental validation of the theoretical results.