Aeroelastic Modeling and Stability Analysis of a Flapping Wing with Unsteady Aerodynamic Approach

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Narimani, Mehrdad | 2015

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 47379 (45)
University: Sharif University of Technology
Department: Aerospace Engineering
Advisor(s): Pourtakdoost, Hossein
Abstract:
At this project we proceed to aero elastic modelling of a flapping wing using unsteady aerodynamic approach. Solving this model according to aerodynamic and structure coupling needs to simultaneously solve of aerodynamic and wing structure. Left side and right side of wing, each on divided into 18 elements. each element is interacting with sides element in terms of structural force and moment. In this modeling aerodynamic was modeling with unsteady aerodynamic approach (using modify theodersen function), also structure is flexible in to direction, bending and twisting. In the following it is proved that with change in flapping pattern better performance can be achieved. the effect of change in stroke plain angle, bending stiffness and twisting stiffness in performance and efficiency of flight will be shown also the effect of added mass, friction and unsteady aerodynamic effects will be investigated. In our investigation, we will continue to evaluate the inherent stability
Keywords:
Unsteady Aerodynamic ; Flapping Wing ; Added Mass ; Aeroelastic Modeling ; Modified Teodersen Function

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