Sliding velocity dependence of kinetic friction coefficient of bronze-filled polytetrafluoroethylene and its application to robustness improvement of friction damper

This study demonstrates that the robustness of friction dampers can be enhanced by using positive velocity dependence kinetic force. First, we show coefficient reduced under extremely low sliding conditions oleyl acid phosphate (OLAP) as an additive to lubricant on surfaces between bronze-filled polytetrafluoroethylene (PTFE) and steel. Next, based results numerical simulations, use a surface with is effective in improving vibration reduction ability dampers. Finally, our findings are demonstrated through simplified experiment.