Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Daniel T. DiPerna"'
Autor:
Daniel T. DiPerna, Jason M. Anderson
Publikováno v:
AIAA Journal. 60:610-626
An analytical modeling approach is developed to compute the unsteady force on a foil, with any specified chordwise thickness profile, due to a passing point vortex. The model uses a generalized Jou...
Autor:
Daniel T. DiPerna, Jason M. Anderson
Publikováno v:
23rd AIAA/CEAS Aeroacoustics Conference.
Autor:
David Feit, Daniel T. DiPerna
Publikováno v:
The Journal of the Acoustical Society of America. 110:3018-3024
In the analysis of a fluid loaded line-driven plate, the fields in the structure and the fluid are often expressed in terms of a Fourier transform. Once the boundary conditions are matched, the structural displacement can be expressed as an inverse t
Autor:
Timothy K. Stanton, Daniel T. DiPerna
Publikováno v:
The Journal of the Acoustical Society of America. 96:3064-3079
A new method for predicting the far‐field scattered pressure due to a plane wave incident upon an infinitely long cylinder of noncircular cross section is presented. The method, referred to herein as the Fourier matching method (FMM), involves conf
Autor:
Daniel T. DiPerna, Timothy K. Stanton
Publikováno v:
The Journal of the Acoustical Society of America. 90:3348-3355
The backscattering behavior of straight cylinders is examined whose lengths range from much less than the diameter of the first Fresnel zone of the source/receiver pair to much greater than the first Fresnel zone, with special emphasis on the complic
Computation of the homogeneous and forced solutions of a finite length, line-driven, submerged plate
Publikováno v:
The Journal of the Acoustical Society of America. 120(6)
A formulation is developed to predict the vibration response of a finite length, submerged plate due to a line drive. The formulation starts by describing the fluid in terms of elliptic cylinder coordinates, which allows the fluid loading term to be
Autor:
Daniel T. DiPerna, David Feit
Publikováno v:
The Journal of the Acoustical Society of America. 114(1)
In the classic treatment of the line-driven, fluid-loaded, thin elastic plate, a branch cut integral typically needs to be evaluated. This branch cut arises due to a square root operator in the spectral form of the acoustic impedance. In a previous p
Autor:
Daniel T. DiPerna, David Feit
Publikováno v:
The Journal of the Acoustical Society of America. 107(4)
A novel technique is presented for obtaining approximate analytic expressions for an inhomogeneous line-driven plate. The equation of motion for the inhomogeneous plate is transformed, and the transform of the total displacement is written as a sum o
Autor:
Xingguang Diperna, Daniel T. DiPerna
Publikováno v:
The Journal of the Acoustical Society of America. 119:3418-3419
An approximate method for predicting the response of a line‐driven, fluid‐loaded plate will be presented. The method is based on the free space Green’s function using the rational function approximation developed by DiPerna and Feit. The approx
Autor:
Daniel T DiPerna
Publikováno v:
Sound scattering by cylinders of noncircular cross section
This thesis investigates a new method for predicting the farfield scattered pressure of a plane wave due to an infinite cylinder of noncircular cross section. Both impenetrable and penetrable fluid boundary conditions will be treated for several type
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::46cf2fc2acfd11ccae3be03ca3f6d6a6
https://doi.org/10.1575/1912/5576
https://doi.org/10.1575/1912/5576