AUTHOR=Iwase Shunsuke , Maruyama Taisuke , Momozono Satoshi , Maegawa Satoru , Itoigawa Fumihiro 

TITLE=Studies on dielectric spectroscopy of oxidatively degraded Poly(α-olefin)

JOURNAL=Frontiers in Mechanical Engineering

VOLUME=Volume 10 - 2024

YEAR=2024

URL=https://www.frontiersin.org/journals/mechanical-engineering/articles/10.3389/fmech.2024.1504347

DOI=10.3389/fmech.2024.1504347

ISSN=2297-3079

ABSTRACT=Failures in tribological components such as bearings can significantly affect the performance and lifespan of machinery, necessitating the implementation of effective condition monitoring technologies. This study verified the feasibility of dielectric spectroscopy (DES) as a method for detecting abnormalities before damage occurs. A comparative evaluation was conducted between dielectric relaxation parameters and measurements from size exclusion chromatography, total acid number, and viscosity for oxidatively degraded poly (α-olefin) oils. The results confirmed that DES is an effective method for assessing the oxidative degradation state of lubricants. These findings suggest that DES could be applied to oil film condition monitoring and predictive maintenance.