Now showing items 1-5 of 5

    • Predicting And Improving The Dynamic Behavior Of Multistage High Performance Pumps 

      Bolleter, Ulrich; Frei, Arno; Florjancic, Dusal (Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1984)
      Good rotordynamic behavior, implying sufficient stability margin and low sensitivity to unbalance forces, is mandatory for modern high pressure multistage pumps. Stiffness, damping and mass matrices describing the forces ...
    • Rotordynamic Developments For High Speed Multistage Pumps 

      Pace, Stanley E.; Florjancic, Stefan; Bolleter, Ulrich (Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1986)
      At present, the majority factor limiting the designer’s ability to predict the rotordynamic behavior of multistage centrifugal pumps is the availability of accurate input data for the forces acting on the rotor. Recent ...
    • Shaft Sizing For Multistage Pumps 

      Bolleter, Ulrich; Frei, Arno (Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1993)
      For proper sizing of pump shafts, many criteria need to be considered such as stress, deformation, and rotordynamics. The authors try to shed more light on these areas in order to ensure economic, safe, and reliable pump ...
    • Solution To Cavitation Induced Vibration Problems In Crude Oil Pipeline Pumps 

      Bolleter, Ulrich; Schwarz, Diether; Carney, Brian; Gordon, Earl (Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1991)
      An output was increased on the Eat-West crude oil pipeline in Saudi Arabia, increasing shaft seal failures were encountered. These limited the operation of the pipeline. Surveys on site and detailed model tests with flow ...
    • Solutions To Abrasive Wear-Related Rotordynamic Instability Problems On Prudhoe Bay Injection Pumps 

      Valantas, Robert A.; Bolleter, Ulrich (Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1988)
      Prudhoe Bay produced water injection pumps suffered serious vibration problems and high balance piston leakage a few months after initial startup. Even though initial pump orientation at low water rates was satisfactory, ...