کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
289338 509675 2008 19 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Noise radiation of aircraft panels subjected to boundary layer pressure fluctuations
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
پیش نمایش صفحه اول مقاله
Noise radiation of aircraft panels subjected to boundary layer pressure fluctuations
چکیده انگلیسی

In this paper, a method which predicts the sound radiation of aircraft panels subjected to turbulent boundary layer excitation is described. The method is the extension of an earlier deterministic approach, where the modal expansion and modal receptance methods were used to predict random noise transmission through curved aircraft panels with stringer and ring frame attachments. Here, with implementation of the Corcos and Efimtsov models to characterize the dynamic surface pressure cross-spectra, closed-form solutions for the panel displacements, radiation and transmission pressures are derived. Numerical examples are presented to illustrate the effects of the stringers, ring frames, hydrodynamic coincidence, curvature, in-plane tension, structural dissipation and composite material on the structural and acoustic response of the panel.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Sound and Vibration - Volume 314, Issues 3–5, 22 July 2008, Pages 693–711
نویسندگان
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