Elsevier

Wear

Volume 91, Issue 1, 15 October 1983, Pages 25-31
Wear

An experimental investigation of tribological effects on coastdown phenomena in horizontal rotating machinery

https://doi.org/10.1016/0043-1648(83)90105-9Get rights and content

Abstract

An experimented investigation of the coastdown characteristics of a two-rotor system consisting of a variable-speed d.c. motor driving a flexible rotor on two journal bearings is presented. The characteristics are plotted in terms of decelaration versus speed for various operating conditions (speed, lubricant type, misalignment and commutator carbon brushes). The coast-down curve resembles the classical Stribeck friction diagram and hence can be used to evaluate the transition speed of journal bearings of rotating systems. The results confirm that this simple technique provides a measure of the friction present and indicates the mechanical condition of the rotating assemblies.

References (15)

  • R.J. Craig

    Applications of coastdown monitoring techniques for vertical shaft motors

  • T.L. Daugherty et al.

    Coastdown time as a mechanical condition indicator

  • T.L. Daugherty et al.

    ASLE Trans.

    (1979)
  • G.D. Xistris et al.
  • G.D. Xistris et al.
  • G.D. Xistris et al.

    Mech. Eng.

    (May 1976)
  • M. Deprez

    C. R. Acad. Sci.

    (1884)
There are more references available in the full text version of this article.

Cited by (11)

  • Analysis of deceleration phenomenon of high speed rotor systems

    1987, Mechanical Systems and Signal Processing
View all citing articles on Scopus
View full text