ROTOR DYNAMICS LABORATORY BENEFITS

• Sponsors have access to a PC-Based Total lateral Dynamic Analysis Capability:
  • VT-FAST-- automated frontend.
  • UNDAMPED CRITICAL SPEEDS--single pass editor for input of rotor model. Automated screen display of N_CR and mode shapes.
  • ELLIPTIC FORCED RESPONSE--compiled for extended memory use to allow up to 120 rotor stations, with 20 bearing/seal locations, automated plot file generation.
  • STABILITY AND DAMPED CRITICALS--compiled to accept same rotor as response program.
  • FLUID-FILM BEARING ANALYSIS
    • fixed geometry--plain, axial groove, pressure pocket designs.
    • tilting pad--automated single pad files for rapid bearing evaluation.
  • LIQUID SEAL ANALYSIS
    • oil seals--automated heat balance, oil flow, and dynamic characteristics.
    • turbulent pump seals--centered seal with options for taper, circumferential grooves, and inlet swirl.
  • LABYRINTH GAS SEALS--state-of-the-art analysis of gas labyrinth seals with automated entry swirl calculation.
  • ROTOR BALANCING PROGRAMS
    • single plane least squares
    • two-plane least squares
  • UTLPLOT package to plot results of Rotor Response Analysis--output to screen, dot matrix, pen plotter, and laser printer.
  • ROTO-VIEW--3D simulation program; view in XP but no print.
  • VT-EXPRESS -- Hybrid bearing analysis
  • VT-MAP -- Morton Thermal Instability Program for overhung designs.
• Annual meeting to review progress and discuss direction of research.
• Contact with top Engineering students with an awareness of Industry needs.
• Interaction with researchers and engineers from other Affiliate companies.
• Sponsors receive reports and computer codes for all research work sponsored by the industry grants.
• Exposure to other Virginia Tech research results in related areas of turbomachinery design.
• The analysis of labyrinth seals by CFD analysis will be a major effort during the next three years.
• A diesel engine turbo test stand has been installed in Randolph Hall for both undergraduate project team work and graduate student research projects..