Influence of both friction and wear on the vibration of marine water lubricated rubber bearing
Influence of both friction and wear on the vibration of marine water lubricated rubber bearing
复制标题
摩擦磨损对船用水润滑橡胶轴承振动的影响
DOI：
10.1016/j.wear.2017.02.006
复制
发表时间：
2017-04-15
期刊：
影响因子：
5
通讯作者：
Yang, Jun
中科院分区：
文献类型：
--
作者：
Wang, Huanjie;Liu, Zhenglin;Yang, Jun
船用水润滑轴承是水下航行器和一些水面舰艇推力轴系的关键部件，目前常用的材料有橡胶、橡胶、聚四氟乙烯、尼龙，由于橡胶材料的减振降噪性能优于某些材料，因此通常应用于潜艇和水下航行器的水润滑螺旋桨轴轴承，以提高其隐身性能，安全性、性能和可靠性。橡胶虽然具有较好的减振效果，但在低速、重载和磨损的情况下，特别是在起动或停车阶段，容易引起摩擦振动和噪声。因此，研究水润滑橡胶轴承的摩擦磨损等摩擦学性能直接影响轴承的振动，对提高车辆的静音水平、降低摩擦振动和噪声具有重要的理论意义和工程应用价值。因此，本文的研究目的是探讨不同橡胶材料的水润滑橡胶轴承在不同工况下的摩擦磨损对轴承振动的影响。研究中采用了理论分析与试验相结合的方法。在理论分析中，建立了轴承的有限元模型，分析了轴承衬的变形情况;在试验研究中，在轴承试验台上对不同橡胶材料的水润滑轴承进行了不同轴转速、载荷和冷却水温度下的试验研究。研究结果表明，不同转速、载荷和冷却水温度对水润滑橡胶轴承的摩擦系数和磨损均有影响，导致轴承振动状态发生显著变化。在一定范围内，随着载荷的增加，由于试验轴与轴瓦接触面积的增大，轴瓦变形加剧，轴承比压降低，摩擦系数和振动降低。随着冷却水温度的升高，磨损和振动都加剧。在一定转速范围内，轴转速越高，摩擦系数越小，摩擦振动越小。(C)2017爱思唯尔B. V.保留所有权利。
Marine water-lubricated bearing is the key part of the thrust shafting of underwater vehicles and some surface vessels, that is currently made with rubber, Thordon, Feroform, nylon, lignumvitae materials etc. Because the performance of vibration and noise reduction of the rubber material is better than some materials so that it is usually applied in water-lubricated propeller shaft bearing of submarines and underwater vehicles to improve their stealth, security, performance and reliability. Although the rubber is of better damping effect, it is always easy to cause friction vibration and noise under low speed, heavy load and wear situation, especially at starting or stopping phases. Therefore, it is of important theoretical significance and engineering value to enhance the mute level of the vehicles and alleviate friction vibration and noise.The tribological properties of water-lubricated rubber bearing such as friction and wear can affect the bearing vibration directly. So the research objective is to explore the influence of both friction and wear of water-lubricated rubber bearing on the bearing vibration under the different rubber materials of the bearing lining and working conditions. In the research, both theoretical analysis and test methods are applied. In theoretical analysis, the finite element model of the bearing is established and the deformation of the bearing lining is analyzed, and in test research, kinds of water-lubricated bearings with different rubber material were tested on the bearing test-bed under different shaft rotary speed, load and cooling water temperature. The research results show that both friction coefficient and wear of water lubricated rubber bearings are affected with the different rotary speed, load and cooling water temperature, which result in the bearing vibration status changed significantly. With the increase of the load in some range, the deformation of the bearing lining is intensified and the specific pressure of the bearing is decreased due to the augment of contact area of between test shaft and bearing lining so that the friction coefficient and vibration are declined. As cooling water temperature is enhanced, both wear and vibration are aggravated. The higher shaft rotary speed is, smaller friction coefficient is in certain speed range so friction vibration is reduced. (C) 2017 Elsevier B.V. All rights reserved.