Stability of journal bearings with a load in an arbitrary direction: A non-linear transient analysis

K. Raghunandana, K. Jagannath, A. M. Chincholkar

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In maneuvering, a ship experiences motions in all six degrees of freedom. Rolling, a common motion of ship sailing on the sea is probably the most unwanted of all. One of the parameters responsible for the rolling of the ship is the load acting at an arbitrary angle on the bearing and the transverse displacements of the heavy loads on the journal bearings of the ship. These are considered as the degrees of freedom in the present paper. When the bearings using non-Newtonian lubricants are operating at high speeds, there is a possibility of whirl instability, which limits the speed, and hence rolling of the ship. The present study considers the effect of such a load on the stability of bearings using non-Newtonian lubricant. The equations of motion of the system are derived and are solved by the fourth order Runge-Kutta method to evaluate the mass parameter (a measure of stability). It is observed that the stability is very high at lower eccentricity ratio for a given additional load at all angles.

Original languageEnglish
Title of host publicationProceedings of STLE/ASME International Joint Tribology Conference, IJTC 2006
Volume2006
Publication statusPublished - 28-11-2006
EventSTLE/ASME International Joint Tribology Conference, IJTC 2006 - San Antonio, TX, United States
Duration: 23-10-200625-10-2006

Conference

ConferenceSTLE/ASME International Joint Tribology Conference, IJTC 2006
CountryUnited States
CitySan Antonio, TX
Period23-10-0625-10-06

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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    Raghunandana, K., Jagannath, K., & Chincholkar, A. M. (2006). Stability of journal bearings with a load in an arbitrary direction: A non-linear transient analysis. In Proceedings of STLE/ASME International Joint Tribology Conference, IJTC 2006 (Vol. 2006)