The application, installation, and monitoring of dynamic strain gage instrumentation on the rotating fan blades for subsonic stalled flutter mode of the first fan rotor are described. The engine installation, the modifications to the engine controls to obtain off schedule operation of the fan, engine aerodynamic instrumentation, and general data acquisition systems are discussed
A current problem concerning the use of military and civilian aircraft is the damage caused to turbi...
The UDF trademark (Unducted Fan) engine is a new aircraft engine concept based on an ungeared, count...
Long term strategic changes in power generation approaches will require more flexibility for large p...
Modern turbofan engines employ a highly loaded fan stage with transonic or low-supersonic velocities...
Several aeromechanical programs were conducted in the NASA/USAF Joint Engine System Research Program...
Flutter testing is an integral part of aircraft gas turbine engine development. In typical flutter t...
Two microprocessor-based multichannel monitors for monitoring strain gage signals during aerodynamic...
The objective of the Subsonic/Transonic Stall Flutter Program was to obtain detailed measurements of...
The NASA Lewis aeroelastic research program is focused on unstalled and stalled flutter, forced resp...
A nonintrusive optical method is described for flutter vibrations in unducted fan or propeller rotor...
Aeroelastic problems in turbomachinery and propfans can be static or dynamic in nature. The analysis...
With propulsion research programs focused on new levels of efficiency and noise reduction, two avenu...
High response measurements of a Pratt and Whitney F100(3) turbofan engine at a simulated Mach number...
A summary of the work performed from 1996 to 1997 is presented. More details can be found in the cit...
Dynamic strain gages mounted on rotor blades are used as the primary instrumentation for detecting t...
A current problem concerning the use of military and civilian aircraft is the damage caused to turbi...
The UDF trademark (Unducted Fan) engine is a new aircraft engine concept based on an ungeared, count...
Long term strategic changes in power generation approaches will require more flexibility for large p...
Modern turbofan engines employ a highly loaded fan stage with transonic or low-supersonic velocities...
Several aeromechanical programs were conducted in the NASA/USAF Joint Engine System Research Program...
Flutter testing is an integral part of aircraft gas turbine engine development. In typical flutter t...
Two microprocessor-based multichannel monitors for monitoring strain gage signals during aerodynamic...
The objective of the Subsonic/Transonic Stall Flutter Program was to obtain detailed measurements of...
The NASA Lewis aeroelastic research program is focused on unstalled and stalled flutter, forced resp...
A nonintrusive optical method is described for flutter vibrations in unducted fan or propeller rotor...
Aeroelastic problems in turbomachinery and propfans can be static or dynamic in nature. The analysis...
With propulsion research programs focused on new levels of efficiency and noise reduction, two avenu...
High response measurements of a Pratt and Whitney F100(3) turbofan engine at a simulated Mach number...
A summary of the work performed from 1996 to 1997 is presented. More details can be found in the cit...
Dynamic strain gages mounted on rotor blades are used as the primary instrumentation for detecting t...
A current problem concerning the use of military and civilian aircraft is the damage caused to turbi...
The UDF trademark (Unducted Fan) engine is a new aircraft engine concept based on an ungeared, count...
Long term strategic changes in power generation approaches will require more flexibility for large p...