Now showing items 1-8 of 8
An expert system for off-line analysis of rotating equipment
(Virginia Tech, 1989-08-05)
<p>The analysis of rotating equipment difficulties is currently accomplished by a specialist in rotating equipment examining the signs and symptoms of the equipment, applying his expert judgement, and determining the ...
Analysis of tilting-pad oil seals for high pressure centrifugal compressors
(Virginia Tech, 1988-12-05)
<p>Oil ring seals are one major source of instability in high pressure centrifugal compressors. This thesis presents a method for analysis of an improved seal concept that has been used in very high pressure designs (900 ...
Development of the second-generation IMTS (Intelligent Monitoring and Trending System) and WOT (Wizard of Tech) expert system for rotating machinery
(Virginia Tech, 1996)
IMTS and WOT form a PC-based hardware and software system designed to continuously monitor large numbers of rotating machinery, evaluate each machine's condition through a series of user-definable standards, and alert ...
Influence of active magnetic bearing sensor location on the calculated critical speeds of turbomachinery
(Virginia Tech, 1989-06-05)
<p>The calculation of critical speeds for turbomachinery with active magnetic bearings (AMBs) is of great interest due to the increasing number of applications of this new technology. The potential for increased turbomachine ...
Cracked shaft detection rig
(Virginia Tech, 1994-06-15)
The ever-growing interest of the modern-day rotor dynamicist in the early detection of rotor cracks in turbomachinery has been the direct result of multiple catastrophic experiences that industry has had to face in ...
Transient response technique applied to active magnetic bearing machinery during rotor drop
(Virginia Tech, 1990-12-14)
<p>The active magnetic bearing (AMB) is a relatively new technology which has many advantages compared with conventional bearing design. In an AMB system, the rolling-element back-up bearings are indispensable to protect ...
Experimental evaluation of effective friction coefficient for liquid ring seals
(Virginia Tech, 1991-08-05)
Thermohydrodynamic analysis of a two axial groove journal bearing including thermoelastic effects
(Virginia Tech, 1993-04-15)