Jet Propulsion/Rotors

The moving parts of the jet engine. The turbomachinery blades are mounted on a number of Rotors.


disks edit

The disks provide structural fixing and resist the radial and axial forces generated by the airfoils in the fans. compressors, turbines.

Functional requirements edit

Disk Mechanics edit

Numerical Design edit

Example: 600m/s Tip speed turbine at 200 C edit

Centrifugal compressors edit

Axial compressor durms and stiffeners edit

Fan edit

Blade-off failure analysis edit

Bird Impact edit

Fatigue edit

Disk fracture edit

Clearance control edit

shafts edit

Shafts connect the functional parts and transfer forces from turbines to fans and compressors and to bearings.

Torque edit

Thrust edit

Whirling edit

Gyroscopic effects edit

Multi shaft Dynamics edit

Materials, Manufacturing and Assembly edit

bearings edit

The rotors are supported on bearings.

Functional requirements edit

Loading, Overloading, service life, lubrication

Plain bearings edit

Roller and ball bearings edit

Air bearings edit

Thrust bearings edit

Bearing lubrication and cooling edit

Seals edit

The pressure differentials between different rotating parts are maintained by seals.

Dynamic seals edit

Labyrinth Seals edit

Brush seals edit

Gas Pistons edit

Engine force balance edit

Takeoff edit

Cruise edit