کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5014339 1463181 2017 23 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Vibroacoustic modeling of an elastic beam in low subsonic flows with mean velocities
ترجمه فارسی عنوان
مدلسازی ارتعاشات مکانیکی یک پرتو الاستیک در جریان های پایین دستی با سرعت متوسط
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی مکانیک
چکیده انگلیسی
The paper presents a vibroacoustic model of an elastic beam submerged in uniform low subsonic flows. The governing equations of the elastic beam and acoustic fields are reformulated by means of a coordinates transformation. The convective terms in boundary conditions of the model are considered to achieve the decoupled integral equations. The dynamic responses and radiated acoustic fields of the beam are computed numerically by using the collocation point method. In the numerical examples, the sound waves radiated from the beam are shifted to the moving direction of fluids. Meanwhile, new crests of sound waves are formed in the upstream direction of the sound source with the Mach number increasing. In addition, the numerical results are independently evaluated by power flows of the system.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: European Journal of Mechanics - A/Solids - Volume 66, November–December 2017, Pages 322-328
نویسندگان
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