مروری بر روش‌های بهبود و تعیین عملکرد آیرودینامیکی روتور بالگرد

نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانشجوی دکتری، دانشگاه تربیت مدرس، تهران، ایران

2 دانشیار، دانشگاه تربیت مدرس، تهران، ایران

3 دانشیار، دانشگاه جامع امام حسین (ع)، تهران، ایران

چکیده

مقاله مروری حاضر به بررسی روش‌های تعیین عملکرد آیرودینامیکی روتور بالگرد می‌پردازد. ابتدا پژوهش‌های انجام‌گرفته در حوزه هندسه پره روتور بالگرد، دسته‌بندی و در ادامه تغییر جنس مواد مورداستفاده در پره‌های روتور بالگرد ارزیابی شده است. بهبود روزافزون توانایی رایانه‌ها در تحلیل مسائل و تغییر مواد مورداستفاده در طراحی و تولید پره‌ها از فلز به کامپوزیت و در نتیجه فراهم شدن امکان ساخت شکل‌های متنوع، علاقه‌مندی روزافزونی برای بهبود هندسه پره میان شرکت‌های سازنده بالگرد و محققان این حوزه به وجود آورده است که این امر نیازمند بهبود روش‌های شبیه‌سازی روتور بالگرد می‌باشد. بهبود این روش‌ها همواره از دو جنبه سرعت و دقت مورد تأکید محققان بوده است. در ابتدا روش‌های تحلیلی باهدف افزایش دقت نتایج، توسعه یافتند. سپس با استفاده از اجرای راه‌حل‌های عددی توسط رایانه‌ها، سرعت محاسبات افزایش یافت. در پژوهش‌های اخیر با ترکیب این دو روش و استفاده از نتایج حل تحلیلی به‌عنوان مقادیر اولیه در حل عددی، هزینه محاسباتی کاهش و دقت افزایش‌یافته است. همچنین تحقیقات اخیر بیشتر در جهت فرایندهای بهینه‌سازی سوق داده شده‌اند.

کلیدواژه‌ها

عنوان مقاله [English]

A Review of Methods to Improve and Determine the Aerodynamic Performance of Helicopter Rotor

نویسندگان [English]

  • seyed basir ajelleh 1
  • saeed karimian aliabadi 2
  • Mohammad Ali Jozvaziri 3
1 PhD student, Tarbiat Modares University, Tehran, Iran
2 Associate Professor, Tarbiat Modares University, Tehran, Iran
3 Associate Professor, Imam Hossein University (AS), Tehran, Iran
چکیده [English]

This review article examines the methods of determining the aerodynamic performance of the helicopter rotor. First, the researches carried out in the field of helicopter rotor blade geometry are categorized and then the change of material used in helicopter rotor blades is evaluated The increasing improvement in the ability of computers to analyze problems and the change of materials used in the design and production of blades from metal to composite, and as a result the possibility of making various shapes, has created an increasing interest in improving blade geometry among helicopter manufacturing companies and researchers in this field. This requires the improvement of helicopter rotor simulation methods. The improvement of these methods has always been emphasized by researchers in terms of speed and accuracy. At the beginning, analytical methods were developed with the aim of increasing the accuracy of the results. Then, using the implementation of numerical solutions by computers, the speed of calculations increased. In recent researches, by combining these two methods and using the analytical solution results as initial values in the numerical solution, the computational cost has been reduced and the accuracy has been increased. Also, recent researches have been more directed towards optimization processes.

کلیدواژه‌ها [English]

  • Helicopter Rotor
  • Aerodynamic Simulation
  • Blade Planform Optimization

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مکانیک سیالات و آیرودینامیک
دوره 12، شماره 2 - شماره پیاپی 32
پاییز و زمستان 1402
اسفند 1402
صفحه 85-113

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  • تاریخ دریافت: 10 آبان 1402
  • تاریخ بازنگری: 15 آذر 1402
  • تاریخ پذیرش: 13 دی 1402
  • تاریخ انتشار: 30 بهمن 1402

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