ROTOR DYNAMICS OF TURBOMACHINERY

SERVICES

• Technical consulting in rotordynamics
• Design of rotor-bearing structures
• Dynamical analysis of rotor-bearing structures
• Design of the non-standard and unique experimental equipment for rotor-bearing structures
• Development of vibration diagnostic and condition monitoring systems for gas turbine engines
• Special software in rotordynamics of turbomachinery - programming and development
• Engineers training in rotordynamics(for users and potential Alfa-Tranzit software customers)

TRAINING

1. Rotor Dynamics
   The lecture course covers the backgrounds, concepts and objectives of rotor dynamics for graduates and undergraduates of mechanical and aerospace engineering.
   1. Course Content
      • Introduction to rotordynamics
      • Critical speeds
      • Stability of high-speed rotors
      • Rotor precession
      • Gyroscopic effects
      • Frequencies map
      • Forced and resonance vibrations
      • Support flexibility influence on rotor-bearing vibrations
      • Outer and inner damping
      • Critical speeds transition
      • Assymetric and cracked rotors
      • Nonsynchronous vibrations of rotor- bearing systems
      • Frequency tuning, damping, balancing of rotors
      • Damper supports
      • Finite element method
      • Modal methods in rotordynamics
      • Design of rotor-bearing structures
      • Vibration measurements
   2. Course Format
      • Lecture classes - 32 hours
      • Laboratory and practice classes* - 8 hours
2. Rotordynamics of Gas-Turbine Engines
   The lecture course includes the backgrounds, concepts and objectives of rotor dynamics for practicing engineers, analysts and researches, who want to accumulate knowledge in this field and to apply them for modelling and analysing of the engines rotordynamics. The lecture course is utterly useful for undergraduates of mechanical engineering as well.
   1. Course Content
      • Introduction to rotordynamics of aircraft engines
      • Rotor dynamics. Backgrounds
      • Finite element method
      • Modal methods in rotordynamics of gas-turbine engines
      • Nonlinear analysis of multishaft engine dynamic structures
      • Examples of rotor-bearing dynamic response modelling
      • Design of high-speed rotor dynamic structures
      • Design of damper supports
      • Condition monitoring and diagnosis
      • Balancing of rigid and flexible rotors
   2. Course Format
      • Lecture classes - 30 hours
      • Laboratory and practice classes* - 10 hours