Jet Propulsion/Rotors
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The moving parts of the jet engine. The turbomachinery blades are mounted on a number of Rotors.
disks[edit | edit source]
The disks provide structural fixing and resist the radial and axial forces generated by the airfoils in the fans. compressors, turbines.
Functional requirements[edit | edit source]
Disk Mechanics[edit | edit source]
Numerical Design[edit | edit source]
Example: 600m/s Tip speed turbine at 200 C[edit | edit source]
Centrifugal compressors[edit | edit source]
Axial compressor durms and stiffeners[edit | edit source]
Fan[edit | edit source]
Blade-off failure analysis[edit | edit source]
Bird Impact[edit | edit source]
Fatigue[edit | edit source]
Disk fracture[edit | edit source]
Clearance control[edit | edit source]
shafts[edit | edit source]
Shafts connect the functional parts and transfer forces from turbines to fans and compressors and to bearings.
Torque[edit | edit source]
Thrust[edit | edit source]
Whirling[edit | edit source]
Gyroscopic effects[edit | edit source]
Multi shaft Dynamics[edit | edit source]
Materials, Manufacturing and Assembly[edit | edit source]
bearings[edit | edit source]
The rotors are supported on bearings.
Functional requirements[edit | edit source]
Loading, Overloading, service life, lubrication
Plain bearings[edit | edit source]
Roller and ball bearings[edit | edit source]
Air bearings[edit | edit source]
Thrust bearings[edit | edit source]
Bearing lubrication and cooling[edit | edit source]
Seals[edit | edit source]
The pressure differentials between different rotating parts are maintained by seals.