Open AccessExperimental Investigation on Active Longitudinal Vibration Suppression of the Thrust Bearing
Author(s) -
Zhiwen Huang,
Yuhang Tan
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1314/1/012070
Subject(s) - thrust bearing , vibration , thrust , bearing (navigation) , hull , structural engineering , propulsion , active vibration control , engineering , actuator , vibration control , control theory (sociology) , acoustics , aerospace engineering , marine engineering , physics , computer science , electrical engineering , control (management) , astronomy , artificial intelligence
The thrust bearing in a marine propulsion shafting system is the main transmission path of vibration induced by the longitudinal fluctuating forces of the propeller, and has significant influence on the coupled vibration and acoustic radiation of the shafting-hull system. An active control method for suppressing the longitudinal vibration of the thrust bearing is presented, which is able to reduce the coupled vibration of the shafting-hull system. The active method was experimented on a shafting system, which comprised two electromagnetic actuators symmetrically mounted on the thrust bearing base. The two actuators can response to an adaptive control strategy and theoretically suppress the dynamic forces between the thrust bearing and its base and resulting reduce vibrations in the hull structure. Experimental results demonstrated that the active control method was able to reduce vibration of the thrust bearing effectively, and the power spectra were decreased by about 90%.