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CDT Analysis is Used as a Condition Monitoring Parameter to Study the Tribological Behavior of Bearing Lubricant Under Different Operating Pressure

[+] Author Affiliations
R. Edwin Browne, K. P. Ramachandran

Caledonian College of Engineering, Sultanate of Oman

A. K. M. De Silva, D. K. Harrison

Glasgow Caledonian University, Glasgow, Scotland

Paper No. ESDA2006-95021, pp. 827-837; 11 pages
  • ASME 8th Biennial Conference on Engineering Systems Design and Analysis
  • Volume 3: Dynamic Systems and Controls, Symposium on Design and Analysis of Advanced Structures, and Tribology
  • Torino, Italy, July 4–7, 2006
  • ISBN: 0-7918-4250-9 | eISBN: 0-7918-3779-3
  • Copyright © 2006 by ASME


The deceleration and running down operation of any rotating system when analysed would lead to useful input function for condition monitoring. When the power supply to any rotor system is cut off, total momentum gained through the sustained operation will dissipate and the system will come to halt. The time elapsed between the power cutoff and the complete stop of the system is defined as CDT (Coast Down Time). The tribological behaviour could be effectively monitored through this parameter (CDT), which has been conducted on a horizontal rotor system with a full journal bearing at different speed and lubrication pressures. The characteristics are compared with steady state vibration in order to emphasize the potential benefit of using CDT as a useful diagnostic parameter for condition monitoring.

Copyright © 2006 by ASME



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