A Subharmonic Vibration Absorber for Rotating Machinery

摘要: We demonstrate a dynamic vibration absorber system which can be used to reduce speed fluctuations in rotating machinery. The primary is modeled as simple disk, and the idealized consists of pair equal point masses are free move along identical, prescribed paths relative disk. unique features proposed arrangement that absorbers tuned one-half frequency applied torque and, more importantly, they effective fully nonlinear operating range. These can, undamped case, exactly cancel pure harmonic given order without inducing any higher harmonics, thus rendering perfectly constant rotation. A perturbation method extend results small damping case investigate stability desired motion. Simulations verify analysis effectiveness device.