The effect of mass eccentricity upon tribological test results

8th International Conference on Advanced Concepts in Mechanical Engineering

Ciornei, F.C.^1 ; Alaci, S.^1 ; Dulucheanu, C.^1 ; Ciornei, C.^1 ; Ciornei, M.C.^2

Mechanics and Technologies Department, Stefan Cel Mare University, Suceava, Romania^1

Department 2 Physiology i, Carol Davila University of Medicine and Pharmacy, Bucuresti, Romania^2

关键词: Axisymmetric bodies;    Effect of eccentricities;    Experimental aspects;    Inclined planes;    Nonlinear differential equation;    Nonlinear ordinary differential equation;    Rolling bodies;    Tribological tests;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/444/2/022016/pdf
DOI  :  10.1088/1757-899X/444/2/022016

来源: IOP

【 摘 要 】

The paper presents the estimation of the effects of mass eccentricity of a rotating geometrical axisymmetric body upon the experimental tribological results obtained through inclined plane methodology. The first part of the paper presents the steps for deducing the nonlinear ordinary differential equation for the motion of an axisymmetric body with mass eccentricity in pure rolling on an inclined plane. This nonlinear differential equation is numerically integrated and the effect of eccentricity upon the moving time is pointed out. The experimental aspects are presented in the second part of the work. A new designed device, used in accurately finding the moving time of the rolling body is presented. A solution for a rotor with rigorously controlled eccentricity is proposed.