Abstract
Damping capacity is one of the most important parameters in considering the structural design in machine tools. It is not a usual means to use solvant for wiping out oil or grease from bolted joints. So, this paper describes an experimental investigation on dynamic characteristics of bolted joins having a thin layer of lubricant. It is found that the variation rate of bolt's axial force which is in propotion to a relative amplitude of two surfaces shows a smaller value as compared with dry joints. The damping effect of oiled joints dependents on fastening force of bolts and static bending force, however in the case of high contact pressure it is not dependent on them. The effect of lubricant and some other results are described.
