...Randall P. Williams; Neal A. Hall We have previously shown how Thévenin's theorem may be used to solve problems in linear acoustic scattering from a mobile body, by forming the solution as a superposition of the field scattered from the body when held immobile and the solution for radiation from...

... June 3, 2018; published online July 5, 2018. Assoc. Editor: Ronald N. Miles. 02 01 2018 03 06 2018 Noise control Propagation Radiation In the past few decades, transport noise has received increasing attention, especially aerodynamically noise. When aircraft or motor...

...Xiongtao Cao; Mingsheng Wang; Lei Shi Sound radiation from stationary and rotating point acoustic sources with shield of rigid prolate spheroidal baffles is explored in the prolate spheroidal coordinate system. The formulae of far-field sound pressure and acoustic power are derived and acoustic...

... February 1, 2018; published online March 27, 2018. Assoc. Editor: Ronald N. Miles. 21 03 2017 01 02 2018 Dynamics Modal analysis Propagation Sensors and actuators Radiation Sound source localization aims to determine the location of a target sound source with respect...

... modeling. Propagation Radiation The equations for flexural wave motion in thin plates first proposed by Uflyand [ 1 ] were subsequently shown by Mindlin [ 2 ] to follow from Hamilton's principle with kinetic and energy densities derived from the full elastodynamic equations of motion. Mindlin...

... geometry that significantly influence the sound field external to the wind turbine blade. Depending on the size and shape of the damage, radiated sound will exhibit different directivities when exiting through the damage. Each blade forms an acoustic cavity that has an associated set of acoustic modes...

... control Propagation Structural dynamics Vibration control Radiation Control Ground-borne noise and vibrations have become a major environmental concern in urban areas. Vibrations may arise from different sources and lead to several complaints due to the annoyance to inhabitants living...

... IBRATION AND A COUSTICS . Manuscript received January 2, 2017; final manuscript received May 10, 2017; published online July 26, 2017. Assoc. Editor: Stefano Lenci. 02 01 2017 10 05 2017 Damping Noise control Propagation Vibration control Radiation The achievement...

... branch (a portion of the model is shown) Damping Dynamics Materials Noise control Propagation Vibration control Acoustics Radiation Passive noise control of a duct system often includes the introduction of an intermediate impedance discontinuity such as a quarter-wavelength...

.... By examining the computational performance of two representative setups (lined duct and duct radiations), the current study shows the superior performance of the proposed algorithm, particularly with GPU. The much improved computational efficiency further suggests the potential of the proposed algorithm...

... of ASME for publication in the J OURNAL OF V IBRATION AND A COUSTICS . Manuscript received October 19, 2016; final manuscript received March 28, 2017; published online July 6, 2017. Assoc. Editor: Ronald N. Miles. 19 10 2016 28 03 2017 Noise control Propagation Radiation...

... Acoustics Radiation There has been abundant interest in acoustic and vibrational properties of periodic systems. In most of these analyses, Bloch's theorem [ 1 ] is employed. Mead and Markus [ 2 , 3 ] used a variant of this theorem to investigate harmonic wave propagation in periodic structures...

... 24, 2016; final manuscript received April 11, 2017; published online June 12, 2017. Assoc. Editor: Matthew S. Allen. 24 05 2016 11 04 2017 Non-linear vibration Propagation Structural acoustics Structural dynamics Radiation Control Wave propagation in linear...

...] Allam , S. , and Åbom , M. , 2006 , “ Investigation of Damping and Radiation Using Full Plane Wave Decomposition in Ducts ,” J. Sound Vib. , 292 ( 3–5 ), pp. 519 – 534 . 10.1016/j.jsv.2005.08.016 [37] Ronneberger , D. , 1975 , “ Genaue Messung der Schalldämpfung und der...

...: Sheryl M. Grace. 15 07 2016 05 01 2017 Acoustic emission Propagation Radiation A Fourier transform of a head-related impulse response (HRIR) [ 1 ], head-related transfer function (HRTF) [ 2 ] is essential for understanding spatial hearing [ 3 ]. In situations where...

.... Grace. 25 07 2016 05 12 2016 Acoustic emission Noise control Propagation Radiation Acoustic liners are currently the most effective passive control strategies in the reduction of aero-engine noise emissions [ 1 – 3 ]. To take account of background flow effects, different...

...Yang Zhang; Xiao-Zheng Zhang; Chuan-Xing Bi; Yong-Bin Zhang An inverse direct time domain boundary element method (IDTBEM) is proposed for the reconstruction of transient acoustic field radiated by arbitrarily shaped sources. The method is based on the theory of direct time domain boundary element...

... Radiation Due to the geometry enveloped by the curved surface of a tire and the ground surface, the tire/road noise is amplified when propagating outward from the contact area. This amplification phenomenon is known as the horn effect. It can lead to a 10–20 dB amplification of the noise...

... online February 3, 2017. Assoc. Editor: Mahmoud Hussein. 28 03 2016 05 10 2016 Materials Propagation Vibration isolation Vibration control Acoustics Radiation Considerable attention has been devoted in the past several decades for studying the dynamics of periodic...

... are adjusted. 29 03 2016 10 08 2016 Flow induced vibration Propagation Radiation Flow induced noise The Helmholtz-type hydraulic silencer is one of the most practical silencers for attenuating pressure pulsations in hydraulic systems [ 1 ]. Compared with many other types...