On damping characteristics of frictional hysteresis in pre-sliding range

7th International Workshop on MUlti-Rate Processes & HYSteresis; 2nd International Workshop on Hysteresis and Slow-Fast Systems

Ruderman, Michael^1 ; Iwasaki, Makoto^2

Department of Engineering Sciences, University of Agder, Grimstad

4879, Norway^1

Department of Computer Science and Engineering, Nagoya Institute of Technology, Nagoya

466-8555, Japan^2

关键词: Advanced Dynamics;    Coulomb frictions;    Damping characteristics;    Equilibrium state;    Friction modeling;    Frictional hysteresis;    Hysteresis damping;    Nonlinear friction;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/727/1/012014/pdf
DOI  :  10.1088/1742-6596/727/1/012014

来源: IOP

【 摘 要 】

Frictional hysteresis at relative motion in the pre-sliding range is considered. This effect is characterized by an elasto-plastic interaction, and that on the micro-scale, between two rubbing surfaces in contact that gives rise to nonlinear friction force. The pre-sliding friction force yields hysteresis in displacement. In this study, the damping characteristics of frictional hysteresis are analyzed. It is worth noting that we exclude the viscous damping mechanisms and focus on the pure hysteresis damping to be accounted in the friction modeling. The general properties of pre-sliding friction hysteresis are demonstrated and then compared with the limit case of discontinuous Coulomb friction. Further we consider two advanced dynamic friction models, LuGre and Maxwell-slip, so as demonstrate their damping properties and convergence of the motion system to equilibrium state. Experimental observations of the free motion in pre-sliding range are also shown and discussed.