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Jesse Caldwell & Jon Schwank. Micromechanical Flight. MAE 268. Flight on micro level Types of Flight (MAV’s) Rotary Flapping MAV Aerodynamics Current Designs Future Applications Possible Improvements. Overview. Can flight be achieved on MEMS level? No self-contained MEMS flyers yet

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Micromechanical flight

Jesse Caldwell & Jon Schwank

Micromechanical Flight

MAE 268


Overview

  • Flight on micro level

  • Types of Flight (MAV’s)

    • Rotary

    • Flapping

  • MAV Aerodynamics

  • Current Designs

  • Future Applications

  • Possible Improvements

Overview


Introduction

Introduction


Introduction1

Introduction


Flight on micro level

Flight on micro level


Types of flight mav s

Generating more lift:

  • Unsteady flapping or rotation

    – Can generate two additional lift mechanisms

  • Mimicking Insects

  • Extremely difficult to mimic

Types of Flight (MAV’s)

Typical insect wing stroke showing the wing tip location and angle of attack.


Insect flight

Insect Flight

Lift


Rotary microflight

Rotary Microflight



Future applications

Implantation of MEMS into Insects insects

Surveillance & intelligence

Search & rescue

Military

Future Applications


Possible improvements

Possible Improvements


Torsional ratcheting actuater

Direct conversion to rotary motion insects

  • Low actuation voltage ~ 18-35 V

  • Easily Controlled (Square Wave)

  • Advantages

    • Generates large torques

  • Disadvantages

    • Failure at high speeds

Torsional Ratcheting Actuater


Gearing

  • Gear Train insects

    • Multiple gears to increase Torque or Speed

  • Convert high torque to high speed

    • Ideal solution for TRA

Gearing


Conclusion

  • Looking to nature

  • Current Design

  • Future Ideas

  • Possible Improvements

  • Conclusion


    Questions
    Questions? insects


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