EVALUATION OF TORQUE DAMPING IN NON LINEAR ELASTIC COUPLINGS

Abstract

The paper continues research work about damping characteristics specific to driving torque transmitted through couplings, which considers as variables elasticity and damping for the particular case of a coupling of Φ40 mm. The mathematical model for a pin and bush coupling with an intermediate non-metallic disk is described being kept the same procedure of variation of elasticity and damping is produced by material removing of different diameters according to pin dimensions. The experimental results of testing – elasticity and hysteresis were performed on a Schenck test bench (PTO005) with and without pretension torque. There was calculated the damping of torsion vibrations (ratio between the amplitude of oscillation of the driving semi-coupling and the amplitude of oscillation of the driven semi-coupling) and comparison was made with previous work on a similar coupling with Φ20 mm.