...Zhi Cheng; Ying Wu; Earl H. Dowell; Fue-Sang Lien The flow dynamics and aeroacoustics propagation for flow-induced vibration system consisting of three-dimensional flow past an elastically-mounted square cylinder are investigated using the Ffowcs Williams–Hawkings method and detached eddy...

... such as bridges and buildings. 04 10 2010 09 05 2011 24 05 2011 28 12 2011 28 12 2011 aeroacoustics aerodynamics beams (structures) dynamic response energy harvesting piezoelectricity structural acoustics vibrations wind power wireless sensor networks Galloping...

...Gary Koopmann; Ulf Michel 06 09 2011 22 11 2011 08 12 2011 08 12 2011 acoustic intensity measurement acoustic noise aeroacoustics fans microphones pipe flow turbomachinery vibrations Wolfgang Neise, renowned for his life-long contributions to advancing...

... 28 11 2011 28 11 2011 acoustic field acoustic intensity acoustic noise aeroacoustics ducts jets nozzles Sound emission jet noise ducted exhaust The acoustic loads in a launch vehicle environment arising from supersonic turbulent exhaust jets of rocket engines...

... 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...

... aeroacoustics aircraft boundary layer turbulence jet engines shells (structures) structural acoustics vibrations aircraft cabin noise cylindrical cabin closed-form analytical model flow-induced noise and vibration random vibration structural-acoustic coupling Turbulent boundary layer...

... 10 2009 19 01 2011 26 07 2011 26 07 2011 acoustic field aeroacoustics aerodynamics anechoic chambers (acoustic) blades fans microphones noise abatement vortices As prevailing noise regulations become more stringent, the blade design of modern...

... pressures of one-ports connected to the network or introducing a one-port at the inlet node of the system with a very high impedance to simulate a constant flow source. 27 05 2010 21 12 2010 12 04 2011 12 04 2011 acoustic intensity measurement aeroacoustics exhaust systems...

... and their interactions with the launch pad (see Figs. 1 2 ). acoustic field acoustic intensity acoustic noise aeroacoustics boundary integral equations inverse problems space vehicles time-domain analysis 02 11 2008 11 06 2010 22 03 2011 22 03 2011 Effects...

... technique acoustic noise acoustic resonance aeroacoustics pipe flow silencers simulated annealing 01 11 2009 16 03 2010 26 08 2010 26 08 2010 The STL with respect to frequencies at various mufflers (targeted tone: 800 Hz) By using the formulas of Eq. 9...

... an experimental technique developed to investigate noise sources along the radius of the blades, together with cross-correlation and coherence analyses of the near field and far field, the modified blade-tip configurations are shown to reduce the rotor-only aeroacoustic signature of the fan as a direct...

.... , Neise , W. , Antoine , H. , and Bouty , E. , 2001 , “ Collection of Technical Papers ,” Proceedings of the Seventh AIAA/CEAS Aeroacoustics Conference and Exhibit , Maastricht, Netherlands, May 28–30, Vol. 2 , Paper No. A01-30800 07-71. Nauhaus , L. , Schulz , J. , Neise , W...

... feedforward control technique. active noise control aeroacoustics feedforward iterative methods Active-noise control (ANC) becomes necessary, powerful, and cost efficient when passive noise control methods are not practical due to space and/or mass constraints. Achieving broadband noise...

.... , 2001 , “ Numerical Simulation of the Unsteady Flow Past a Cavity and Application to the Sunroof Buffeting,” Seventh AIAA∕CEAS AeroAcoustics Conference , Maastricht, The Netherlands , May 28–30, AIAA...

... matrices, 2 ( − ω 2 M a + K a ) p = 0 06 02 2006 11 01 2007 08 04 2008 aeroacoustics finite element analysis modal analysis structural acoustics vibrations In a previous paper ( 1 ), we developed modal synthesis methods using “branch modes...

... the unstable speed region and the hysteresis region narrow. The influence of the fluid viscosity on the unstable speed region of a rotor filled with a high viscosity fluid must be considered. Email: cszhu@hotmail.com vibrations flow instability rotors viscosity Navier-Stokes equations aeroacoustics...

... silencers exhaust systems aeroacoustics vibrations acoustic noise noise abatement diesel engines The higher and higher penetration of diesel engines in the passenger car market is due to their higher efficiency and, thereby, reduced fuel costs. Although diesel engines are favorable in terms...

.... 05 11 2003 14 07 2005 vibrations structural acoustics rotors turbomachinery bifurcation variational techniques chaos Poincare mapping boundary layers aeroacoustics Fluid-film bearings play a key role in the design of turbomachinery systems. They are important components...

... resonance cavitation aeroacoustics The problem deals with the internal flows encountered in many industrial processes where a fluid has to be transported in a piping system. All the valves or other elements may create a flush mounted cavity as presented in Fig. 1 . The shear layer usually...

...; Revised June 2002. Associate Editor: R. L. Clark. 01 Feb 2002 01 June 2002 06 01 2003 acoustic impedance state feedback piezoelectric actuators active noise control vibrations acoustic wave absorption aeroacoustics Throughout the operational lifetime of satellites...