...C. Testa; G. Bernardini; M. Gennaretti An integrated spectral-integral formulation is applied for prediction and active control of the noise generated by propellers inside the cabin of a general aviation aircraft. It consists of a multidisciplinary approach that involves interaction among exterior...

...Joana da Rocha; Afzal Suleman; Fernando Lau The turbulent boundary layer is a major source of interior noise in transport vehicles, mainly in aircraft during cruise flight. Furthermore, as new and quieter jet engines are being developed, the turbulent flow-induced noise will become an even more...

... fixed wing MAVs. aerodynamics aircraft elasticity finite difference methods finite element analysis Navier-Stokes equations vortices 03 06 2010 30 06 2010 17 03 2011 17 03 2011 Phase-averaged contours of y vorticity at eight points in plunging cycle; St...

...Fabrice Chevillot; Jean-Jacques Sinou; Nicolas Hardouin; Louis Jezequel This paper deals with the simulation of nonlinear vibration induced by friction in an aircraft braking system. Experimental tests reveal that in similar experimental conditions the mechanism can generate vibrations of various...

... frequencies, corresponding mode shapes, and mass properties from the updated finite element model achieved at the final optimization iteration have excellent agreement with corresponding measured data. 09 10 2007 13 05 2008 06 01 2009 aircraft elasticity finite element analysis...

.... 08 05 2006 05 01 2007 structural acoustics surface acoustic waves aircraft piezoelectric transducers condition monitoring aerospace engineering acoustic applications crack detection corrosion Structural health monitoring (SHM) techniques are being developed to reduce...

...Fusheng Lin and; Guang Meng aircraft vibrations The authors acknowledge an error in Fig. 3. In this figure, the legends for two curves are incorrect. The curve labeled with X d ″ = 50 should be changed to X d ″ = 1 ; the curve labeled...

...Fusheng Lin; Guang Meng This paper shows how the dynamics of a rotor in a maneuvering aircraft changes according to the operation of the aircraft. The mathematical model of an unbalanced rotor system located in the maneuvering aircraft is derived. The dynamic characteristics of the rotor running...

...Steven A. Lane, Mem. ASME; Robert L. Clark, Mem. ASME; Steve C. Southward, Mem. ASME Acoustic enclosures such as aircraft cabins often display lightly damped modal behavior at low frequencies where passive treatments are impractical due to mass and volume constraints. This work presents a feedback...