TUNING FREQUENCY OF ROTATING BODY TORSIONAL MODE BY ADDING DETUNER

摘要

PURPOSE: A method and a system for adjusting the frequency of a torsion mode of a rotator are provided to enable the frequency of a torsion mode of a rotator to be adjusted through the adding of a detuner operating as a non-damping torsion vibration absorber. CONSTITUTION: A protruded shaft(105) extended from a rotator(100) is provided. The detuner(106) is connected to the protruded shaft. In order that the frequency of the torsion mode of the protruded shaft is substantiallay equal to the natural frequency of the torsion mode of the rotator, the physical properties of the detuner are adjusted. The physical properties comprise at least one of the weight, the size, the stiffness and the inertia.