Wear monitoring method of water-lubricated polymer thrust bearing based on ultrasonic reflection coefficient amplitude spectrum

作     者：Changxiong NING Fei HU Wu OUYANG Xinpin YAN Dongling XU Changxiong NING;Fei HU;Wu OUYANG;Xinpin YAN;Dongling XU

作者机构：School of Naval ArchitectureOcean and Energy Power EngineeringWuhan University of TechnologyWuhan 430063China School of Transportation and Logistics EngineeringWuhan University of TechnologyWuhan 430063China Reliability Engineering InstituteNational Engineering Research Center for Water Transport SafetyWuhan 430063China Alliance Manchester Business SchoolThe University of ManchesterManchester M156PBUK 

出 版 物：《Friction》 (摩擦（英文版）)

年 卷 期：2023年第11卷第5期

页      面：685-703页

核心收录：

学科分类：0817[工学-化学工程与技术] 08[工学] 080203[工学-机械设计及理论] 0805[工学-材料科学与工程（可授工学、理学学位）] 0802[工学-机械工程] 0801[工学-力学（可授工学、理学学位）] 080201[工学-机械制造及其自动化] 

基　　金：supported by the National Key R&D Program of China(No.2018YFE0197600) European Union’s Horizon 2020 Research and Innovation Programme RISE under Grant Agreement No.823759(REMESH) the National Natural Science Foundation of China(No.52071244) 

主　　题：water-lubricated polymer thrust bearings wear monitoring ultrasonic reflection coefficient amplitude spectrum parameter inversion differential evolution 

摘      要：The water-lubricated thrust bearings of the marine rim-driven thruster(RDT)are usually composed of polymer composites,which are prone to serious wear under harsh working *** is an excellent non-destructive monitoring technology,but polymer materials are characterized by viscoelasticity,heterogeneity,and large acoustic attenuation,making it challenging to extract ultrasonic echo ***,this paper proposes a wear monitoring method based on the amplitude spectrum of the ultrasonic reflection *** effects of bearing parameters,objective function,and algorithm parameters on the identification results are simulated and *** the correlation coefficient and root mean square error as the matching parameters,the thickness,sound velocity,density,and attenuation factor of the bearing are inversed simultaneously by utilizing the differential evolution algorithm(DEA),and the wear measurement system is *** order to verify the identification accuracy of this method,an accelerated wear test under heavy load was executed on a multi-functional vertical water lubrication test rig with poly-ether-etherketone(PEEK)fixed pad and stainless-steel thrust collar as the *** thickness of pad was measured using the high-precision spiral micrometer and ultrasonic testing system,***,the results demonstrate that the thickness identification error of this method is approximately 1%,and in-situ monitoring ability will be realized in the future,which is of great significance to the life prediction of bearings.