Browsing Turbomachinery and Pump Symposia by Author "Edney, Stephen L."

Now showing items 1-6 of 6

    • Designing High Performance Steam Turbines With Rotordynamics As A Prime Consideration. 
      Edney, Stephen L.; Lucas, George M. (Texas A&M University. Turbomachinery Laboratories, 2000)
      Steam turbines first produced useful work well over a century ago. Their reliability, efficiency, and versatility are possibly the three man attributes that have contributed to their widespread utilization in a wide range ...
    • Eliminating A Rub-Induced Startup Vibration Problem In An Ethylene Drive Steam Turbine. 
      Nicholas, John C.; Edney, Stephen L.; Matthews, Terryl; Varela, Francisco J. Mourente (Texas A&M University. Turbomachinery Laboratories, 2001)
      A 16 megawatt ethylene drive steam turbine built in 1973 experienced rub related startup vibration problems for many years. The turbine would lock into a rub as it accelerated through the rotor’s first critical speed causing ...
    • Pad Temperature In High Speed, Lightly Loaded Tilting Pad Journal Bearings. 
      Edney, Stephen L. (Texas A&M University. Turbomachinery Laboratories, 1995)
      The principal results from an extensive experimental investigation of the steady state characteristics of tilting pad journal bearings are presented. The conditions examined were primarily concerned with operation at high ...
    • Profiled Leading Edge Groove Tilting Pad Journal Bearing For Light Load Operation. 
      Edney, Stephen L.; Waite, John K.; Decamillo, Scan M. (Texas A&M University. Turbomachinery Laboratories, 1996)
      Optimization of a leading edge groove tilting pad journal bearing for application in a small, high speed, multistage steam turbine is described. Rotordynamics constraints to meet a design objective maximum operating speed ...
    • Retrofitting A Large Steam Turbine With A Mechanically Centered Squeeze Film Damper. 
      Edney, Stephen L.; Nicholas, John C. (Texas A&M University. Turbomachinery Laboratories, 1999)
      Reviewed is the application of a squeeze film damper to a large steam turbine that addresses high vibration passing through the first critical speed. The turbine was the fifth near identical machine purchased over the ...
    • Subtracting Residual Unbalance For Improved Test Stand Vibration Correlation. 
      Nicholas, John C.; Edney, Stephen L.; Kocur, John A.; Hustak, Jerry F. (Texas A&M University. Turbomachinery Laboratories, 1997)
      The importance of correlating rotordynamic analytical results to actual test data has become extremely important in recent years. Many user specifications require the verification of vendor generated analytical results in ...