بررسی رفتار آیروالاستیک بال کامپوزیتی در جریان تراکم‌پذیر

نوع مقاله : مقاله پژوهشی

نویسندگان

1 کارشناس / دانشکده مهندسی هوافضا، دانشگاه صنعتی شریف

2 عضو هیات علمی / دانشکده مهندسی هوافضا، دانشگاه صنعتی شریف

3 دانشجوی دکتری / دانشکده مهندسی هوافضا، دانشگاه صنعتی شریف

چکیده

در این مقاله رفتار آیروالاستیک بال ساخته شده از مواد مرکب در جریان تراکم‌پذیر بررسی شده است. برای شبیه‌سازی رفتار سازه بال از تیر ساخته شده از مواد غیر ایزوتروپ که دارای سطح مقطع بسته با دیواره‌های نازک/ ضخیم است، استفاده شده است. برای ایجاد همبندی مناسب بین مودهای خمش و پیچش، روش لایه‌چینی سختی محیطی نامتقارن به‌کار گرفته شده است. برای شبیه‌سازی آیرودینامیک ناپایای تراکم‌پذیر نیز از روش آیرودینامیک نواری براساس استفاده از توابع اندیسی (Indicial Function) در محدوده تراکم‌پذیر استفاده شده است. در نهایت نتایج برای چند بال نمونه ارایه شده و با مراجع موجود مقایسه شده است.

کلیدواژه‌ها


عنوان مقاله [English]

Aeroelastic Behavior of Composite Wings in Compressible Flow

نویسندگان [English]

  • Tooraj Farsadi 1
  • Hasan Haddadpour 2
  • Seyed Ali Sina 3
1
2
3
چکیده [English]

In this paper, the aeroelastic behavior of composite wings has been studied. Anisotropic thick/thin beam with closed cross section is utilized as structural model. Circumferentially asymmetric stiffness layup scheme is used to obtain the preferred coupling between bending and torsion modes. Aerodynamic strip theory in conjunction with the indicial aerodynamic is used to obtain the aerodynamic loads in compressible flight speeds. To validate the aeroelastic model and results, comparisons between the obtained results and those available in the literature were performed and an excellent agreement was reported.

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