Analytical study of interior noise control by fuselage design techniques on high-speed propeller-driven aircraft

Revell, J. D.; Balena, F. J.; Koval, L. R.

doi:10.2514/6.1980-1001

Cited by 10 publications

(1 citation statement)

References 4 publications

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“…Taking the Fourier transformation of Eqs. (2)(3)(4)(5)(6)(7)(8) and writing the solution in terms of the orthogonal acoustic modes corresponding to acoustically hard walls yields…”

Section: P=p\+p2mentioning

confidence: 99%

Structure-Borne Noise Transmission into Cylindrical Enclosures of Finite Extent

Bofilios

Lyrintzis

1991

AIAA Journal

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This paper presents an analytical study of structure-borne noise transmission of finite, double-wall-laminated, fiber-reinforced cylindrical enclosures due to stochastic excitations. The stochastic excitations are either uniform random pressures or random point loads with specified spectral densities. The theoretical solutions of the governing acoustic-structural equations are obtained via modal decomposition and a Galerkin-like approach. Numerical results indicative of the effects of acoustic and structural variations are offered.

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“…Taking the Fourier transformation of Eqs. (2)(3)(4)(5)(6)(7)(8) and writing the solution in terms of the orthogonal acoustic modes corresponding to acoustically hard walls yields…”

Section: P=p\+p2mentioning

confidence: 99%

Structure-Borne Noise Transmission into Cylindrical Enclosures of Finite Extent

Bofilios

Lyrintzis

1991

AIAA Journal

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Evaluation of interior noise control treatments for advanced turboprop aircraft

Prydz

Revell

Balena

1985

Journal of Aircraft

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Experimental noise-reduction data have been obtained on a 43 % scale model of a typical narrow-body aircraft. The acoustic performance of six sidewall "add-on" noise-reduction treatment designs has been evaluated under random and harmonic acoustic excitations and compared with predictions. A previously derived mathematical model for sound transmission into a stiffened cylindrical shell with mult Havered treatments is used for the predictions. The theory compares favorably with experimental data at high frequencies and high-surfacedensity sidewall conditions, but underestimates low-frequency noise reduction. It is shown that add-on noise control treatment designs are effective in reducing the interior noise of propfan-powered aircraft to acceptable levels.

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