To provide more information in fluid-film lubricated bearings, the effects of non-Newtonian couple stresses on the dynamic characteristics of Rayleigh step slider bearings have been presented in this paper. According to the results, the effects of non-Newtonian couple stresses signify an improvement in the bearing characteristics. Comparing with the Newtonian-lubricant Rayleigh step bearing, the nonNewtonian couple stress effects provide an increase in the steady load-carrying capacity, the dynamic stiffness coefficient and the dynamic damping coefficient, as well as a reduction in the steady volume flow rate required. In order to guide the use of the present study, a numerical example and further evaluated results for the non-Newtonian-lubricant Rayleigh step bearing characteristics are also included for engineering applications.
Lin, Jaw-Ren; Chu, Li-Ming; and Liaw, Wei-Liang
"EFFECTS OF NON-NEWTONIAN COUPLE STRESSES ON THE DYNAMIC CHARACTERISTICS OF WIDE RAYLEIGH STEP SLIDER BEARINGS,"
Journal of Marine Science and Technology: Vol. 20:
5, Article 9.
Available at: https://jmstt.ntou.edu.tw/journal/vol20/iss5/9