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Now showing items 51-60 of 139
An Operation History Of Fractional Frequency Whirl
(Texas A&M University. Gas Turbine Laboratories, 1975)
The problem of a whirling rotor in a high pressure centrifugal compressor and the steps to arrive at a solution are described. Orbit shapes and vibratory motion are illustrated. Vibratory frequency ratios compared to ...
Compressor Drive Trubines Of High Efficiency And Great Operational Safety
(Texas A&M University. Gas Turbine Laboratories, 1977)
Steam turbines employed as mechanical drivers require special design features. The problems confronting a turbine designer arc blade and shaft vibrations, bending and centrifugal stresses, torsional analyses as well as ...
Machinery Monitoring Update
(Texas A&M University. Gas Turbine Laboratories, 1977)
This paper describes and economically justifies one major oil company's utilization of a total Integrated Mechanical Inspection Program as an alternative to high maintenance costs and reduced plant productivity.
Rejuvenation Of Used Turbine Blades By Hot Isostatic Processing
(Texas A&M University. Gas Turbine Laboratories, 1977)
The creep properties of gas turbine blades will deteriorate with prolonged service exposure. This deterioration is primarily due to internal microstructural changes and the formation of creep voids or cavitation. Development ...
Fluid Film Bearings - Fundamentals And Design Criteria And Pitfalls
(Texas A&M University. Gas Turbine Laboratories, 1977)
The presentation will cover fluid film bearing fundamental theory and design criteria. Since the subject is extensive, the design portion will be restricted to hydrodynamic (self-acting) bearing mode using liquid lubricants. ...
Table of Contents for the Proceedings of the 6th Turbomachinery Symposium
(Texas A&M University. Gas Turbine Laboratories, 1977)
Industrial Steam Turbines Improve Energy Utilization In Thermal Power Plants
(Texas A&M University. Gas Turbine Laboratories, 1976)
Owing to high fuel costs, European Companies have always had to use special care in planning their process-energy requirements. Therefore, the industrial steam turbine has also played a major part in this respect. The ...
Reliable Overspeed Protection For Industrial Drive Turbines
(Texas A&M University. Gas Turbine Laboratories, 1976)
The paper discusses the fundamental relationships between turbine overspeed and the time constant of the rotor. The amount of overspeed is shown to be related not only to the time lag of the emergency tripping devices, but ...
Electromagnetic Shaft Currents And Demagnetization On Rotors Of Turbines And Compressors
(Texas A&M University. Gas Turbine Laboratories, 1978)
A high percentage of large, high-speed compressor trains has suffered serious failures which were initiated by shaft current damage. These currents are generated by electromagnetic effects. The basic mechanics of various ...
An Investigation Of The Flexural Vibration Behavior Of Slender Rotors In Drum-Type Condensing Turbines
(Texas A&M University. Gas Turbine Laboratories, 1978)
With turbine rotors of low shaft elasticity (large diameter and small bearing span) the increase in amplitude at the first point of shaft resonance in the speed range is generally slight. Consequently no particular attention ...