摘要
以船舶水润滑轴承为研究对象,建立水润滑轴承双向流固耦合模型,采用有限元法研究偏心率为0. 6时,赛龙、飞龙、丁腈橡胶和超高分子聚乙烯4种不同衬层材料水润滑轴承的润滑特性。研究结果表明:转速一定时,4种衬层材料沿轴向和周向的衬层变形分布较为一致,其中丁腈橡胶衬层的变形最大; 4种衬层材料沿轴向和周向的压力分布趋势也较为一致,最大的压力值均出现在210°～270°之间,同时在270°～30°之间水膜压力波动较大。4种衬层材料的摩擦因数均随转速的增大呈现先增大后减小的趋势,其中丁腈橡胶的摩擦因数最大,超高分子聚乙烯的摩擦因数最小。
The bidirectional fluid-structure coupling model of water lubricated bearing for marine was established by using the finite element method.The lubrication characteristics of water-lubricated bearings with four different lining materials of Tenmat,Thordon,nitrile rubber and ultra-high molecular polyethylene were studied by numerical method when the eccentricity was 0.6.The results show that,when the speed is constant,the deformation distribution of four lining materials is consistent in the axial and circumferential directions,and the deformation of nitrile rubber lining is the largest.The pressure distribution trends of the four materials in the axial and circumferential directions are also consistent under constant speed condition,and the maximum pressure values appear at the angle between 210°and 270°,while the water film pressure fluctuation is larger between 270°and 30°.With the increasing of rotational speed,the friction coefficient of four lining materials is first increased and then decreased.The friction coefficient of nitrile rubber is the largest,and the friction coefficient of ultra-high molecular polyethylene is the smallest.
作者
杜媛英
李明
DU Yuanying;LI Ming(Engineering Training Center,Xi’an Shaanxi 710054,China;College of Science,Xi’an University of Science and Technology,Xi’an Shaanxi 710054,China)
出处
《润滑与密封》
CAS
CSCD
北大核心
2018年第12期52-56,62,共6页
Lubrication Engineering
基金
国家自然科学基金项目(11372245)
陕西省自然科学基金重点项目(2018JZ1001)
西安科技大学培育基金项目(201632)
关键词
衬层材料
水润滑轴承
衬层变形
水膜压力
摩擦因数
lining materials
water lubricated bearing
lining deformation
water film pressure
friction coefficient
