Hybrid Vibration Isolation of Inertial Vibration Feeders

摘要

The vibration characteristics of inertial vibration feeders were analyzed. Combining active with passive vibration isolation, the hybrid vibration isolation of inertial vibration feeders was researched. Adopting the passive vibration isolation, the vibration transmissibility can be reduced effectively, but the work efficiency of the inertial vibration feeder is reduced too. By choosing right feedback variables and appropriate feedback gain, the vibration transmissibility and the work efficiency of the inertial vibration feeder can be improved markedly by the hybrid vibration isolation. When the velocity feedback gain is equal to the upper damping coefficient and the displacement feedback gain is equal to the upper spring stiffness, the inertial vibration feeder has the best work efficiency and the vibration transmissibility approximates zero. The fuzzy PID control approach was used to design the active vibration control system. The simulation results show that the developed active vibration control system has good control performance.