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 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]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.