Jet Propulsion/Structures
The structure transfers the forces generated by the Jet engine to the vehicle and provides internal support for the components.
Externally mounted jet engines are enclosed in nacelles that provide the necessary aerodynamic and structural characteristics.
Access doors
[edit | edit source]Thrust reversing flaps and vanes
[edit | edit source]Noise abatement
[edit | edit source]The pylon connects the nacelle to the body or wing of the airplane. The pylons may include structural fuses to release the nacelle if the jet engines forces exceed pre determined thresholds to reduce damage to the aircraft.
Damping
[edit | edit source]Service forces
[edit | edit source]TO Cruise Landing
Failure forces
[edit | edit source]Turbine failure Fan blade failure Bird Impact Out of balance
Structural fuses
[edit | edit source]Airframe integration
[edit | edit source]Wing pylons
[edit | edit source]Wing root
[edit | edit source]Tail Pylons
[edit | edit source]Fin mount
[edit | edit source]Tail cone mount
[edit | edit source]Fuselage mount
[edit | edit source]Drum design
[edit | edit source]Compressor
[edit | edit source]Axial, Radial
Combustor
[edit | edit source]Turbine
[edit | edit source]Openings
[edit | edit source]Clearance control
[edit | edit source]Nozzles
[edit | edit source]Bleed air
[edit | edit source]The containment structure is usually designed to retain failed blades that detach from the rotor at high speeds. Rotor disks are much more massive than blades and full failures normally cannot be contained in aircraft applications.