| 释义 |
sympathetic resonance
sympathetic resonanceA harmonic beat that develops when the natural vibration frequency of one mechanism is in phase with a vibration of another mechanism that is somehow coupled. In helicopters, the rotor system has its own vibration-resonant frequency that amplifies the same frequency in another part of the helicopter. This phenomenon generally is controlled by a design feature of gear boxes and other means of damping harmonic vibrations. |