Torsion damper test method, e.g. for internal combustion engine drive, by determining angular accelerations of seismic rotating mass and using its moment of inertia to calculate torsional stiffness and torsional damping

摘要

The method involves deriving the relative torsion angles between a connected part (2) and a seismic rotating mass (3) from the time-synchronously measured rotation angles of the two parts (2,3), and then determining the angular accelerations of the seismic rotating mass, taking account of any changes in the angular speed of the connected part. The pre-defined moment of inertia of the seismic rotating mass is used to calculate the torsional stiffness and torsional damping parameters.