Microsoft Word - ORNITHOPTER1.docx

ORNITHOPTER A Project report Submitted in partial fulfillment of the requirements For the award of B. Tech Degree In MECHANICAL ENGINEERING By VINAYAK R NAMBIAR DILRISH RAVEENDRAN DILEEP S RAHUL SR Guided By Asst. Prof. SREEJITH K R

May 2015 Department Of Mechanical Engineering ADI SHANKARA INSTITUTE OF ENGINEERING & TECHNOLOGY (An ISO 9001:2008 Certified Institution) KALADY, KERALA ADI SHANKARA INSTITUTE OF ENGINEERING & TECHNOLOGY (An ISO 9001:2008 Certified Institution) ACKNOWLEDGEMENT We would to thank the mechanical department of ASIET Kalady for letting us fabricate and complete our project within the college and also providing us with maximum support by way of expert guidance and corrections. We would also like to thank the HOD of mechanical dept. for his support and along with him we also thank our guide in this project Asst. Prof. Sreejith K R for his expert guidance. We thank all the lab staff of Mechanical Engineering workshop for helping us in the fabrication works, thereby filling up for our inexperience in this field. We thank everyone who helped us in completion of this work and making it a success.

ABSTRACT Flapping is described as the simultaneous heave and pitch oscillations of a wing. It is the predominant way for producing lifting and propulsive force in natural flight. In flapping flight, both lift and thrust forces are produced simultaneously by flapping wings. Flapping is an effective way for flight at low speeds. In recent years the subject of flying vehicles propelled by flapping wings, also known as ornithopters, has been an area of interest because of its application to micro aerial vehicles (MAVs). These miniature vehicles seek to mimic small birds and insects to achieve never before seen agility in flight. This renewed interest has raised a host of new problems in vehicle dynamics and control to explore. In order to better study the control of flapping wing flight we have developed a large-scale ornithopter. The body houses a Li-Po battery, which powers the wing and tail movements. The wings generate the lift and thrust. The tail is used to turn the vehicle. During the design process the focus is set more on getting a robust and simple mechanism, which could be used as a test bench for further investigations and measurements. This thesis covers the design process of both the mechanical and electrical systems of the ornithopter Concluding, the mechanism is manufactured and assembled to prove the feasibility. ASSISTED BY: VINAYAK R NAMBIAR

Asst. Prof. Sreejith K R DILRISH RAVEENDRAN DILEEP S RAHUL SR

CONTENTS Page Number 1. Introduction 1 2. Objectives 2 3. Scope 3 4. Working Principle 4 4.1 Wing 4 4.2 Tail 5 4.3 Gearbox 6 4.4 Main frame 8 5. Electronics 9 5.1 Battery 9 5.2 Motor 11 6. Related Work 12 7. Conclusion 13