Jet Propulsion/Rotors

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


disksEdit

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

Functional requirementsEdit

Disk MechanicsEdit

Numerical DesignEdit

Example: 600m/s Tip speed turbine at 200 CEdit

Centrifugal compressorsEdit

Axial compressor durms and stiffenersEdit

FanEdit

Blade-off failure analysisEdit

Bird ImpactEdit

FatigueEdit

Disk fractureEdit

Clearance controlEdit

shaftsEdit

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

TorqueEdit

ThrustEdit

WhirlingEdit

Gyroscopic effectsEdit

Multi shaft DynamicsEdit

Materials, Manufacturing and AssemblyEdit

bearingsEdit

The rotors are supported on bearings.

Functional requirementsEdit

Loading, Overloading, service life, lubrication

Plain bearingsEdit

Roller and ball bearingsEdit

Air bearingsEdit

Thrust bearingsEdit

Bearing lubrication and coolingEdit

SealsEdit

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

Dynamic sealsEdit

Labyrinth SealsEdit

Brush sealsEdit

Gas PistonsEdit

Engine force balanceEdit

TakeoffEdit

CruiseEdit