| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a torsional vibration attenuation device capable of obtaining desired vibration attenuation performance by making a pendulum mass reciprocate as designed.SOLUTION: A torsional vibration attenuation device comprises a pendulum mass 2 which is installed at an external side in a radial direction of a rotor 1 and swings in accordance with fluctuation of torque thereof. The pendulum mass 2 has a rotary core 6 rotated about an axial line which passes through a center of the pendulum mass 2 and is perpendicular to a swing direction thereof. The rotary core 6 has a blade section 8 which makes the rotary core 6 rotate by receiving drag of fluid around the rotor 1 as the pendulum mass 2 revolves with a rotational central axial line of the rotor 1 as a central axis.</p> |
