پديد آورنده :
حيدري، مجتبي
عنوان :
تحليل ، طراحي و ساخت يك پرنده بالزن
مقطع تحصيلي :
كارشناسي ارشد
گرايش تحصيلي :
طراحي كاربردي
محل تحصيل :
اصفهان : دانشگاه صنعتي اصفهان
صفحه شمار :
سيزده،175ص.: مصور، جدول، نمودار
استاد مشاور :
سعيد ضيائي راد
توصيفگر ها :
بالزن , بالزن با بال غير صلب , طراحي مكانيزم بال , ضريب برآ , ضريب پسا
استاد داور :
محسن اصفهانيان ، علي لقماني
تاريخ ورود اطلاعات :
1398/10/29
رشته تحصيلي :
مهندسي مكانيك
تاريخ ويرايش اطلاعات :
1398/10/29
چكيده انگليسي :
Analysis Design and Construction of a Flapping Wing Seyed Mojtaba Heidari mojtaba heidari@me iut ac ir Date of Submission 2019 07 1 Department of Mechanical Engineering Isfahan University of Technology Isfahan 84156 83111 Iran Degree M Sc Language FarsiSupervisor Reza Tikani r tikani@cc iut ac irAbstract Ornithopters are not very common versus fixed and rotary wing birds one of the main reasons forwhich is their aerodynamic complexity Therefore less research has been done on them than on fixed androtating wing birds fixed and rotating birds have a serious problem with miniaturization that problem thisis that the Reynolds number shrinks as the wings shrink This results in reduced aerodynamic performance A flapping bird can have a combination of the useful features of the other two birds while not having theirnegative characteristics This project first gives a complete description of these birds and then outlines a general conceptualdesign for them It is noteworthy that despite all the research done on flapping wings the exact method fordesigning these birds has not been elaborated so far and is often based on statistical and trial and errormethods Here it is attempted to formulate important quantities such as wing dimensions and geometricalparameters as well as flight frequency and important flight angles using scientific methods and dynamicequation extraction Then with xflre5 analytical software several types of suitable airfoils were analyzedand finally a suitable airfoil was selected Since the bird being analyzed has a non rigid wing a suitablemechanism for flapping is proposed and then a complete kinematic analysis is performed on it Since theDelaurier method has been applied to rigid wing in flapping wings so far the project has been used foraerodynamic analysis of the non rigid wing By calculating the aerodynamic forces generated by theflapping wing a dynamic analysis of the mechanism is performed to determine the amount of power andtorque needed to move the mechanism At the end all the components of this bird are designed by CATIAsoftware and have been optimized many times for their final dimensions and shape The last phase of thisproject was the process of constructing this flapping wing that was successfully completed and its flighttesting completed the last loop of the project s chain Keywords Flapping wings non rigid wings wing mechanism design lift coefficient drag
استاد مشاور :
سعيد ضيائي راد
استاد داور :
محسن اصفهانيان ، علي لقماني
