Journal ArticleDOI
An experimental investigation of tribological effects on coastdown phenomena in horizontal rotating machinery
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In this article, the authors investigated the coastdown characteristics of a two-rotor system consisting of a variable-speed d.c. motor driving a flexible rotor on two journal bearings.About:
This article is published in Wear.The article was published on 1983-10-15. It has received 9 citations till now. The article focuses on the topics: Rotor (electric).read more
Citations
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Journal ArticleDOI
An Experimental Investigation on the Misalignment Effects in Journal Bearings
TL;DR: In this paper, the experimental performance of misaligned cylindrical and three-lobe journal bearings was evaluated using a double-disc rotor system with a test bearing in the middle and driven by a variable speed DC motor through an electromagnetic coupling.
Journal ArticleDOI
Effects of journal misalignment on the performance characteristics of three-lobe bearings
TL;DR: In this paper, an investigation has been made to evaluate experimentally the performance characteristics of a misaligned 3-lobe journal bearing, and various parameters which have been studied are: friction through coast down time analysis, vibration responses, minimum film thickness, stiffness and damping coefficients of the fluid film, system natural frequency and the damping factor.
Journal ArticleDOI
Thermoelastohydrodynamic Analysis of Tilting Pad Journal Bearing—Theory and Experiments
TL;DR: In this paper, the authors present both theoretical and experimental analysis of a four-pad tilting pad journal bearing, including the simultaneous solution of Reynolds equation, energy equation and deformation equation.
Journal ArticleDOI
Experimental investigation on the performance characteristics of tilting pad journal bearings for small ratios
TL;DR: In this article, an experimental investigation has been carried out on the steady state and dynamic performance characteristics of a tilting pad journal bearing, which has been made using a thermocouple measuring system.
Journal ArticleDOI
Analysis of deceleration phenomenon of high speed rotor systems
TL;DR: In this paper, the problem of decelerating a rotor from a high speed through its critical speeds has received very little attention in technical literature although transient processes occurring during coastdown of machinery usually provide a lot of information about their tribodynamics.
References
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Journal ArticleDOI
Wear Characteristics of Plain Hydrodynamic Journal Bearings During Repeated Starting and Stopping
TL;DR: In this paper, the onset and development of wear in plain hydrodynamic journal bearings under repeated cycles of starting and stopping has been studied experimentally and it was found that the wear caused easily discernable but localized changes in diametral clearance, surface finish, and roundness of the bearing's bore.
Journal ArticleDOI
The Behavior of Plain Hydrodynamic Journal Bearings During Starting and Stopping
TL;DR: In this article, the behavior of plain, hydrodynamic journal bearings during starting and stopping under a steady load was investigated and the starting behavior indicated that a rapid buildup of hydrodynamynamic forces occurred in all cases.
Journal ArticleDOI
Coastdown Time as a Mechanical Condition Indicator for Vertical Axis Motors with Grease-Lubricated Ball Bearings
T. L. Daugherty,R. J. Craig +1 more
TL;DR: In this article, a technique was presented to assess the mechanical condition of vertical axis electric motors equipped with grease-lubricated ball bearings by comparing observed and predicted rotor coastdown times.
Related Papers (5)
Coastdown Time as a Mechanical Condition Indicator for Vertical Axis Motors with Grease-Lubricated Ball Bearings
T. L. Daugherty,R. J. Craig +1 more