Presented by:

NAVEEN KUMAR S

USN 1AY11AE029

Dept. of Aeronautical Engg

Name of the guide(s): SWETHA S

Asst Professor

Aeronautical Department

NANO UNMANNED AERIAL VEHICLES(UAV)

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Table of Contents

Abstract

Introduction

Mechanism

Advantage and disadvantage of nano drones

conclusion

References

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ABSTRACT

The NANO drones is extremely small (NANO) unmanned aerial vehicle (UAV) that is designed for use in urban areas.

NANO drones are controlled remotely and are equipped with camera and microphone.

The NANO drones are multi functional, military capable, small flight vehicles.

Size should be less than 15cms.

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Reynold’s number is less than 10^5.

For primarily intended and developed for defense application.

The NANO drones are Semi-autonomous.

Lift for flight is made with rotary wings and flapping wings.

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INTRODUCTION

An unmanned aerial vehicle (UAV), known as a drone, is an aircraft without a human pilot.

What is DRONE ?

Drones stand for Dynamic Remotely Operated Navigation Equipment.

Its flight is either controlled autonomously by computers or under the remote control of a pilot on the ground.

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essentially, a drone is an aircraft without a human pilot

aboard ; a flying robot.

Small flight vehicles with a different mechanism doing more missions.

Suitable for situations where human cannot involve directly.

Uses more efficient flapping wing mechanism.

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Different names

Drone Unmanned aerial vehicle UAV Uninhabitated aerial vehicle UAV Unmanned aerial system UAS Remotely piloted vehicle RPV Remotely piloted aircraft RPA Remotely piloted aircraft system RPAS Remotely operated air vehicles ROAV Micro aerial vehicle MAV

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Different types of DRONES

fixed wing drone

rotary wing drone

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Micro UAV’S fixed wing aircraft

rotary wing aircraft

flapping wing aircraft

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Biomimetic UAV

Blimps or Balloons

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SCOPE OF DRONE

UAS category max takeoff range

weight category Micro 0.10 close range

Mini W<10 close range

Small 10-150 close range

Medium short 150-500 short range

Medium 500-2000 medium range

Large W>2000 long range

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TASKS OF NANO DRONES

Military (Spying). Surveying farms (to check health of crops). Searching for victims of natural disasters. Reconnaissance application. Operation in constraint environment. Bio chemical sensing. Crowd control. Nowdays used for delivery purpose.

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INTRODUCTION TO FLAPPING WING MECHANISM

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KELVIN’S IDEA

KELVIN’S IDEA is from the flapping wing aerodynamics. Kelvin’s circulation theorem, the net circulation around insect

body is zero. ordinary insects, this build-up of high lift coefficient is

delayed. One species of insects, ENCASIA FORMOSA , which avoid

any delay in built up of maximum lift.

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Working Principle

1. Air comes straight at the wing.

Air comes straight at the wings, bends around it and leaves straight behind the wing.

There is no net action on the air so there can be no lift.

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2. Air passing over the wing.

Fig. shows the stream line as in the action. To generate lift, a wing must divert air down. The air passes over the wing and is bent down. As newton’s law suggests, the wing must change something of

air to get lift. Changes in the airs momentum will result in forces on the

wing.

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Unsteady Aerodynamics

The most important unsteady aerodynamic effects are

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LEADING EDGE VORTEX

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CLAP AND FLING MECHANISM

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WING ROTATION OVER ONE FLAPPING CYCLE

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SWEEP AND INCLINATION PARAMETER

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FLAPPING WING PARAMETERS

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WEIS FOGH’S 2-D flapping wing model

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Different NANO DRONES

BLACK HORNET NANO DRONES

Weighing in at roughly half an ounce and four inches long, the Black Hornet nano helicopter was designed to capture and relay video and still mages to remote users, and can fly even in windy conditions.

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HUMMING BIRD DRONE

Shaped like a bird, the “nano humming bird” drone is negligibly larger than an actual humming bird and fits in the palm of one’s hand.

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MOSQUITO DRONE

Mosquito drone, its potential to land on some one and use a needle like pincer to extract DNA from its victim or alternatively inject drugs or other foreign substances.

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DRAGONFLY DRONE

“ Insect sized spies” that could not be detected and would be able to fly into buildings to ‘ photograph, record, and even attack insurgents and terrorists’.

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Different NANO DRONES

Cyborg drone Samarai drone Nano quadrators Micro bat drone Spy butterfly drone Switch blade drone Raven drone

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ADVANTAGES AND DISAVANTAGES OF NANO DRONE

ADVANTAGES Nano drones are much cheaper to maintain than traditional

drones. Nano drones can easily recover from in flight collisions. Nano drones can save more lives in natural disaster because

their small size and ability to fly makes them very maneuverable.

Nano drones can save soldiers in combat positions by scouting the enemy territory to make sure it is safe to procede.

Low mass , low power requirements, High lift and low landing speed.

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DISADVANTAGES

Nano drones could be used by enemies to spy on other nations possibly revealing top secret information for an enemy.

They are not self powered. cannot launch from ground. There chances of air bag buckling.

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CONCLUSION

MICRO OR NANO air vehicles are new development of the technology by which a variety of operations are done.

Simple flapping of the wings does not generate sufficient lift.

So special mechanism is designed to get the required lift using weis fogh’s model.

Flapping mechanism have more lift compared to fixed wing mechanism.

It can increase the lift without increasing vehicle speed.

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REFERENCES

mohd. Sharif ammo, Md. Nizam Dahalan , “micro air vehicle: technology review and design study, department of aeronautics and automotive”,

faculty of mechanical engineering

university technology , Malaysia.

Dr K.C.Wang “ design and development of micro air vehicle” school of aerospace , University of Sydney.

www.slideshare.net/micro-air-vehicles .

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THANK YOU