Journal ArticleDOI
Commutator carbon brush effect on the coastdown times of a horizontal motor and a motor-rotor coupled system
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In this article, an experimental investigation carried out of the coastdown characteristics of a variable-speed d.c. motor and a motor-rotor system is detailed in terms of speed vs. time.About:
This article is published in Wear.The article was published on 1987-04-01. It has received 0 citations till now. The article focuses on the topics: Commutator (electric).read more
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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.
Journal ArticleDOI
An experimental investigation of tribological effects on coastdown phenomena in horizontal rotating machinery
TL;DR: 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.
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Coastdown Time as a Mechanical Condition Indicator for Vertical Axis Motors with Grease-Lubricated Ball Bearings
T. L. Daugherty,R. J. Craig +1 more