1. Research on the influence of the normal vibration on the friction-induced vibration of the water-lubricated stern bearing
- Author
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Zhenglin Liu, Tianyang Deng, Jianhui Zhou, and Yong Jin
- Subjects
Materials science ,lcsh:Mechanical engineering and machinery ,Chaotic ,02 engineering and technology ,01 natural sciences ,law.invention ,0203 mechanical engineering ,law ,0103 physical sciences ,Physics::Atomic and Molecular Clusters ,lcsh:TJ1-1570 ,General Materials Science ,Dynamical friction ,Physics::Chemical Physics ,010301 acoustics ,effect of normal vibration ,Bearing (mechanical) ,Computer simulation ,Mechanical Engineering ,Contact region ,Mechanics ,friction-induced vibration ,Vibration ,Noise ,020303 mechanical engineering & transports ,Stern ,water-lubricated stern bearing - Abstract
During the slow voyage of ships, the friction-induced vibration noise often occurs in the contact region of the water-lubricated stern bearing and the tail shaft. The lateral vibration can impact the normal motion of the contact surface, then change the dynamic friction force, finally affect the behaviour of the friction-induced vibration. By adding the movement of the stern shaft journal into the normal load description of the dynamic friction, the equation of friction-induced vibration considering the effect of normal vibration was established. Then the effect law of normal vibration on friction-induced vibration was discussed by numerical simulation and test. The results show that the normal vibration would make the friction-induced vibration appear quasi-periodic, chaotic trend, and narrow the speed range in which the noise of friction-induced vibration appears.
- Published
- 2020
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