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
کلیدواژهها
عنوان مقاله [English]
نویسندگان [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]
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