... actuators. 18 06 2010 01 02 2011 31 08 2011 20 09 2011 acoustic field acoustic noise acoustic waves aeroacoustics aerospace components aircraft boundary-elements methods noise abatement piezoelectric actuators propellers Interior cabin noise is a challenging...

... edge of the lower membrane. A direct correlation between levels of strain and the phase of the membranes during the limit cycle is found in the computation and thought to also occur in the experiment. 31 08 2009 07 06 2010 17 03 2011 17 03 2011 aerospace components boundary...

... 11 2009 aerospace components aerospace engines ball bearings beams (structures) failure (mechanical) fault diagnosis integration mechanical contact rotors stators vibrations In general, the rotor of aero-engine is supported on the stator casing through bearing...