EFFECTS OF NON-NEWTONIAN COUPLE STRESSES ON THE DYNAMIC CHARACTERISTICS OF WIDE RAYLEIGH STEP SLIDER BEARINGS

Authors

Jaw-Ren Lin, Department of Mechanical Engineering, Taoyuan Innovation Institute of Technology, Jhongli, Taiwan, R.O.C.Follow
Li-Ming Chu, Department of Mechanical and Automation Engineering, I-Shou University, Kaohsiung, Taiwan, R.O.C.
Wei-Liang Liaw, Department of Mechanical Engineering, Taoyuan Innovation Institute of Technology, Jhongli, Taiwan, R.O.C.

Abstract

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.

Recommended Citation

Lin, Jaw-Ren; Chu, Li-Ming; and Liaw, Wei-Liang (2012) "EFFECTS OF NON-NEWTONIAN COUPLE STRESSES ON THE DYNAMIC CHARACTERISTICS OF WIDE RAYLEIGH STEP SLIDER BEARINGS," Journal of Marine Science and Technology: Vol. 20: Iss. 5, Article 9.
DOI: 10.6119/JMST-011-0506-5
Available at: https://jmstt.ntou.edu.tw/journal/vol20/iss5/9