MEASURING METHOD AND APPARATUS FOR CHECKING DAMPING FACTOR OF MOVING RING TORSIONAL-VIBRATION DAMPERS FILLED WITH VISCOUS FLUID

摘要

Measuring apparatus for quickly checking the damping coefficient of torsion-vibration dampers filled with a viscous liquid and being provided with a swing ring. The basic principle relates to the recognition that there is a well measurable, numerically characterizable relation between the damping coefficient of a damper of a given nominal geometry and the number of vibrations of the freely oscillating system. The apparatus comprises three main units, such as at least one torsional-vibrating system, at least one mechanism producing the free oscillation, and an electronic unit. Each unit is disclosed including optional as well as alternative detail solutions thereof.