Design of a Maglev Inertial Actuator with High Mass Power Ratio for Lateral Vibration Control of Propulsion Shafting

Abstract

The maglev inertial actuators with high power and mass maybe effective for lateral vibration control of a propulsion shafting. But the mass power ratio of the actuators currently in use is too small to meet the requirements. In the paper, a maglev inertial actuator was innovatively designed with high mass power ratio. The structure of the magnetic circuit assembly and the suspending assembly were designed and optimized. To verify the property of the proposed maglev inertial actuator, a prototype with mass less than 8 kg was developed and tests were carried out. The minimum effective output force can reach 200 N within the frequency band of 20–300 Hz. A lateral vibration of a propulsion shafting system was constructed and the active control effect was tested. The experimental results show that the proposed maglev inertial actuator has a good effect on lateral vibration control of shafting.

Active vibration control of gearbox housing using inertial mass actuators

“…In addition, other researchers studied electrodynamic IMAs as Hendijanizadeh et al [42] who implemented active resonance frequency tuning of adaptively tuned vibration absorbers by coupling a vibration absorber comprising a voice coil actuator and a sprung inertial mass to a solenoid actuator. Wu et al [43] developed a maglev inertial actuator with a high masspower ratio and tested it on a propulsion shafting system. Dal Borgo et al [44,45] performed a theoretical and experimental study of a stroke-limited inertial actuator when used for AVC of a flexible structure.…”