Rigid And Flexible Coupling Analysis Of Vibration Noise For Water-lubricated Rubber Alloy Bearings

Bearing system is an important part of the ship’s power plant, and its performancehas a direct effect on the reliability of the ship, is also an important indicator of theship’s vitality. With the rapid development of science and technology, the performanceof the bearing system is increasingly demanding. Therefore, we must carry on theanalysis of the dynamic characteristics of the bearing system to meet the performancerequirements of the bearing system working to ensure that the ship has good vitality andreliability. Thanks to the natural water as the working medium, Water lubricated rubberalloy bearing has been widely used in civilian and military vessels. But it is easy toproduce vibration noise in poor lubrication conditions, seriously affect the reliability ofthe bearing system. So carrying water lubricated rubber alloy bearing vibration noisestudy has positive social significance and great practical significance for thedevelopment of China’s bearing.Firstly, this article researches the present situation at home and abroad on waterlubricated rubber alloy bearing vibration noise and rigid and flexible coupling analysis,theory and practice to establish a water lubricated rubber alloy bearing rigid and flexiblecoupling mathematical model. Secondly, build rigid and flexible coupling simulationanalysis model for water lubricated rubber alloy bearing based on Ansys and Adamssoftware. Application of the kinetic theory of water lubricated rubber alloy bearing tocarry rigid and flexible coupling analysis of the bearing system vibration noise. Theresults show that the rigid and flexible coupling analysis method can be used to studywater lubricated rubber alloy bearing vibration noise, and acceleration changes offlexible body rubber’s centroid can be used to predict vibration noise. Thirdly, study theinfluence of loading force, speed, the friction coefficient and the bearing structure tobearing system vibration noise using simulation analysis. Studies have shown that speedis significant factor to influent bearing vibration noise in the experiment conditions, andloading surface has greatest influence to bearing vibration noise in the bearing structure.Finally, test bearing vibration acceleration by conducting water lubricated rubber alloybearing noise vibration experiment, and repeat the experiment by changing the speed,loading force and bearing structure. Experiment results validate the rigid and flexiblecoupling analysis results. Experiment results are consistent with rigid and flexiblecoupling analysis results, which show that the use of the Adams flexible body dynamics theory and rigid and flexible coupling analysis of this article is reasonable, providingimportant reference value for the design and use of bearings.