Modelagem e análise cinemática de um mecanismo de asa oscilante para aplicação em vant bioinspirado

Abstract

Unmanned aerial vehicles (UAVs), called Flapping Wing Micro Aerial Vehicle (FWMAV), imitate the flight characteristics of birds and insects. Birds achieve lift and remain in the air using only the force of their wings, with which they generate the thrust necessary to overcome air resistance and set their body in motion. FWMAV models are commonly considered biomimetic or biomorphic, as they closely resemble the structure and function of biological systems, thus managing to ingeniously integrate nature and engineering. The development of FWMAV typically involves small-scale challenges, knowledge in aerodynamics, flexible wing design, as well as difficulties with the cost of materials for its manufacture. Thus, a systematic planning is necessary for modeling the flapping wing mechanism of a Bioinspired UAV. In this context, the present work presents a two-dimensional kinematic model of a flapping wing mechanism of an Ornithopter, based on a single crank and double rocker system, with two independent 4-bar mechanisms. Computer simulations are performed using the Octave software to analyze the angular movements of the wings, such as the transmission, oscillation and phase angles between the wings. The geometric parameters of an mechanism are defined following predefined angular limits. Finally, a prototype is modeled in SolidWorks software and manufactured using the rapid prototyping method.