Simultaneous Vibration Suppression and Energy Harvesting

Abstract

Research results in support of creating a multifunctional UAV spar with capabilities of harvesting energy, storing energy, sensing, actuating and computing are presented. A multi layer multifunctional spar is fabricated and modeled. Experiments are performed to validate the model and simulations are reported that illustrate the use of harvested energy to perform active feedback control for gust alleviation is small UAVs. In addition a compensation algorithm was developed to account for the voltage dependence of the coupling coefficient in the feed back control law resulting from the PZT nonlinearity. A minimum energy control law was developed, implemented and compared against standard control laws. Formulas are derived to show how long a UAV must fly before enough energy is harvested to be able to suppress a gust.

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Document Details

Document Type
Technical Report
Publication Date
Aug 15, 2013
Accession Number
ADA585930

Entities

People

  • Daniel J. Inman
  • Pablo Tarazaga

Organizations

  • Virginia Tech

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms
  • Energy and Power Technologies
  • Space

DTIC Thesaurus Topics

  • Aircrafts
  • Composite Materials
  • Control Systems
  • Energy Harvesting
  • Energy Management
  • Energy Storage
  • Engineering
  • Engineers
  • Feedback
  • Materials
  • Mechanical Engineering
  • Piezoceramics
  • Simulations
  • Standards
  • Structural Health Monitoring
  • Unmanned Aerial Vehicles
  • Vibration

Fields of Study

  • Physics

Readers

  • Control Systems Engineering.
  • Energy Conservation and Renewable Energy Engineering.
  • Materials Science and Engineering.