Influence of oil‑water mixing conditions on the friction and wear performance of ship tail‑bearing materials  

作　　者：Xincong Zhou Lun Wang Shaopeng Xing Zhenjiang Zhou 

机构地区：[1]State Key Laboratory of Maritime Technology and Safety,Wuhan University of Technology,Wuhan 430063,China [2]School of Transportation and Logistics Engineering,Wuhan University of Technology,Wuhan 430063,China [3]Reliability Engineering Institute,National Engineering Research Center for Water Transport Safety,Wuhan University ofTechnology,Wuhan 430063,China [4]School of Naval Architecture,Ocean and Energy Power Engineering,Wuhan University of Technology,Wuhan 430063,China

出　　处：《Surface Science and Technology》2024年第1期442-453,共12页表面科学技术(英文)

基　　金：supported by the National Natural Science Foundation of China(U2341284,51579198);the Postdoctoral Fellowship Program of CPSF under Grant Number GZB20240584;the Fundamental Research Funds for the Central Universities(WUT:3120624441).

摘　　要：This study addresses the lubrication challenges posed by oil-water mixtures that arise when vessels encounter adverse maritime conditions,including collisions,grounding,and reefing,which can lead to failures in lubrication systems during navigation.The research focuses on three representative ship tail-bearing composites:polymer material(K4),thordon material(SR),and tenmat material(FR).Various volume fractions of oil-water mixtures were prepared,and the rheological properties of these mixtures were examined using a rotational rheometer(MCR102).Additionally,the variation of friction coefficients of the composites about load and linear velocity under different oil-water mixtures was analyzed using a Ring-Block Friction and Wear Testing Machine.Following the experiments,the surface morphology of the composites was assessed,and the wear mechanisms were analyzed using a laser interferometric surface profiler(LI-type),a confocal laser microscope(CLSM),and a scanning electron microscope(SEM).The findings indicate that,under all lubrication conditions,the friction coefficients of the three materials exhibit a gradual decrease with increasing load and linear velocity.Furthermore,the wear of the materials initially increases and then decreases with rising oil content,with higher oil concentrations in the oil-water mixture correlating with reduced wear.The study reveals that the three materials experience significant abrasive and adhesive wear under adverse oil-water mixing conditions.This research offers valuable insights for developing friction substitutes for oil-water mixing bearings in specialized operational environments and guides the design of friction components in such bearings.

关 键 词：Ship stern bearings Rocking and collision Severe lubrication conditions Oil water mixture Friction and wear performance 

分 类 号：TB3[一般工业技术—材料科学与工程]