Employment of hyper-cycloidal oscillatory motion for finding the coefficient of rolling friction. Part 1: Theoretical model

Product Design, Robotics, Advanced Mechanical and Mechatronic Systems and Innovation Conference

工业技术（总论）;机械制造

Alaci, S.^1 ; Pentiuc, R.-D.^2 ; Ciornei, F.C.^1 ; Romanu, I.C.^1 ; Irimescu, L.^1 ; Buium, F.^3

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

Electrotechnics Department, Stefan Cel Mare University of Suceava, Romania^2

Mechanical Engineering, Mechatronics and Robotics Department, Gheorghe Asachi Technical University of Iasi, Romania^3

关键词: Angular amplitude;    Coefficient of rolling frictions;    Contacting surfaces;    Frictionless pivot;    Oscillation motion;    Oscillatory motion;    Specialized software;    Theoretical modeling;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/514/1/012002/pdf
DOI  :  10.1088/1757-899X/514/1/012002

学科分类：工业工程学

来源: IOP

【 摘 要 】

The oscillation motions of physical pendula constructed with contacts between ball and cylindrical external surfaces for materializing the theoretical frictionless pivot point were applied for determining the coefficient of rolling friction (occurring as a characteristic of the relative motion between the contacting surfaces). The condition imposed for estimation of the coefficient of rolling friction consists in the requirement that the theoretical curve and the experimental data describing the decrease of angular amplitude should superpose each other. To be mentioned that specialized software for dynamic analysis characterizes the rolling friction by the internal damping of the contacting materials instead of applying the coefficient of rolling friction between the materials.