Design and testing of a four-bar flapping wing mechanism

Download
2016
Şenol, Münire Gülay
The purpose of this thesis is to design and test a flapping wing four-bar mechanism. A four-bar linkage system kinematic analysis is introduced for flapping wing motion. The type of mechanism is double rocker and the motion has a single-degree of freedom. Four-bar mechanism is activated by a servo motor which is driven by microcontroller. From the design of four bar mechanism, two different simulations result two different flapping angles and flapping frequencies. This thesis provides a detailed description of the design and manufacturing of the flapping mechanism and its experimental setup. The wing has pure flapping motion with fixed incidence angle. Force measurements are performed for hover modes by using a force transducer. CFD analyses are performed for both hover and forward flight cases. The numerical and experimental results are discussed and compared.

Suggestions

Testing of Flapping Wing Four Bar Mechanism
Şenol, Münier Gülay; Cömez, F Yudum; Kurtuluş, Dilek Funda; Arıkan, Kutluk Bilge (null; 2015-10-29)
The purpose of this paper is to do preliminary work to design and test a flapping wing four-bar mechanism. A four-bar linkage system kinematic analysis is introduced forequation of motion of flapping wing. A validation case is selected upon the works of Konkuk University [4]. The type of mechanism is double rocker and the motion has a single-degree of freedom Four-bar mechanism is activated by a servo motor (ART-TECH AS-100) which is driven by Arduino Uno...
Development and testing of a 3 DOF tandem flapping wing mechanism
Mutlu, Talha; Kurtuluş, Dilek Funda; Department of Aerospace Engineering (2014)
Scope of the thesis is to develop a tandem flapping wing mechanism, capable of mimicking the insect flight, in order to investigate the 3-D complex nature of the flow around the flapping wings. Thus, valuable data about the unsteady aerodynamics of such flow can be obtained in order to provide necessary knowledge for development of future Micro Air Vehicles (MAVs). The mechanism is equipped with a state of art multi axial force and torque sensor. By placing the sensor to the root chord of the wing, any forc...
Aerodynamic and inertial characterization of a generic flapping wing mechanism
Beker , Can; Kurtuluş, Dilek Funda; Department of Aerospace Engineering (2020-10)
The primary focus of this thesis is to conduct an aerodynamical and inertial characterization of a generic flapping wing mechanism. Firstly, a CAD model of the utilized flapping mechanism is created, and a custom test platform is developed for the performed flapping-wing test sequence. Experimental validation of the modal analysis performed for the developed test platform is presented. In the inertial force characterization study, the standalone effect of the inertial forces that occur during flapping motio...
Application of spring analogy mesh deformation technique in airfoil design optimization
Yang, Yosheph; Özgen, Serkan; Department of Aerospace Engineering (2015)
In this thesis, an airfoil design optimization with Computational Fluid Dynamics (CFD) analysis combined with mesh deformation method is elaborated in detail. The mesh deformation technique is conducted based on spring analogy method. Several improvements and modifications are addressed during the implementation of this method. These enhancements are made so that good quality of the mesh can still be maintained and robustness of the solution can be achieved. The capability of mesh deformation is verified by...
Development of a conceptual design tool and calculation of stability and control derivatives for mini UAV systems
Yazırlı, Sena; Alemdaroğlu, Hüseyin Nafiz; Department of Aerospace Engineering (2015)
The main objective of this thesis is to write a design tool that will perform the conceptual design phase of an aircraft and achieve the desired specifications of the design. For this purpose, a code is written in MATLAB so that the designer does not have to change or check parameter values when a modification on the mission altitude, cruise conditions, airfoil type, propulsion system units, weight or general geometry of the aircraft. Most of the available design tools are created for large aircraft and not...
Citation Formats
M. G. Şenol, “Design and testing of a four-bar flapping wing mechanism,” M.S. - Master of Science, Middle East Technical University, 2016.