Advances in Unmanned Air Vehicles (UAVs) for Environmental Monitoring and Security - PowerPoint PPT Presentation

Loading...

PPT – Advances in Unmanned Air Vehicles (UAVs) for Environmental Monitoring and Security PowerPoint presentation | free to view - id: 1db2c2-ZDc1Z



Loading


The Adobe Flash plugin is needed to view this content

Get the plugin now

View by Category
About This Presentation
Title:

Advances in Unmanned Air Vehicles (UAVs) for Environmental Monitoring and Security

Description:

Advances in Unmanned Air Vehicles UAVs for Environmental Monitoring and Security – PowerPoint PPT presentation

Number of Views:457
Avg rating:3.0/5.0
Slides: 17
Provided by: johnko62
Category:

less

Write a Comment
User Comments (0)
Transcript and Presenter's Notes

Title: Advances in Unmanned Air Vehicles (UAVs) for Environmental Monitoring and Security


1
Advances in Unmanned Air Vehicles (UAVs) for
Environmental Monitoring and Security
  • John Kosmatka
  • University of California
  • San Diego, CA 92093
  • (858) 534-1779, jkosmatka_at_ucsd.edu
  • http//casl.ucsd.edu/

UCSD Jacobs School of Engineering Research
ReviewFriday, February 27, 2004
2
Introduction
Unmanned Air Vehicles (UAV) have unique
capabilities that are different from manned
aircraft and satellites
  • High altitudes and low speed for extremely
    accurate experimentation
  • Uncompromised endurance travel, dwell, and
    loiter for long durations
  • Complex flight patterns over difficult terrain
    and through hazardous environments or extreme
    weather
  • Innovative shapes and geometries

Global Hawk
Altair
X-47
Predator Hunter-Killer
3
Expected Uses
Military monitoring, hunting, weapon delivery,
rescue
Civil Government homeland security, emergency
response
Sciences Atmospheric air quality, weather
patterns Marine water currents, temperature,
sea-life patterns Environmental animal
migration
Agriculture crop inspection, harvesting,
pesticide Geophysics earth, soil, magnetic
fields
Commercial remote health inspections, low-orbit
satellite Other monitor nuclear storage, waste,
transportation
4
NASA High Altitude Long Endurance (HALE)
Helios Solar-Powered with Regenerative Fuel Cells
Aircraft Altitude Record 96,500 ft (18
miles) Atmosphere is similar to Mars Goal
Extended flights greater than 24 hours
  • Next Generation Satellite
  • Operates for extended periods on the edge of
    space with the ability to land, upgrade
    electronics, and relaunch.
  • Much cheaper than current satellites
  • Platform for low-g shuttle-like experiments

5
Space Sciences Research ARES UAV, Mars 2007
6
UCSD UAV Expertise
Design
  • Aircraft Design
  • Structural Design and Testing
  • Low-Cost Manufacturing
  • Low-speed Aerodynamics
  • Propulsion
  • Autonomous Flight Controls
  • Formation Flying
  • Communications (Vehicle / Ground / Satellite)
  • Wireless Communications
  • Micro - Atmospheric Sensors

Analysis
Fabrication
Full-Scale Testing
Engine Dyno
Flight Research
Sensors
7
Global Albedo Research Vehicle (GARV)Kosmatka
(UCSD-SE) Ramanathan (UCSD-Scripps)
Scientific Objectives
8
Challenges in studying the aerosol indirect effect
Global Albedo Research Vehicle (GARV)Kosmatka
(UCSD-SE) Ramanathan (UCSD-Scripps)
  • Aerosol effects on climate are highly uncertain
    due to the lack of data.
  • UAVs provide a platform for long-term,
    long-duration atmospheric monitoring to beat the
    sampling problem.

9
Intercontinental transport of aerosols
Global Albedo Research Vehicle (GARV)Kosmatka
(UCSD-SE) Ramanathan (UCSD-Scripps)
  • Atmospheric circulation patterns transport
    aerosols (dust and industrial pollution) between
    continents.
  • Aerosols affect the climate by
  • - reflecting sunlight back into space.
  • - changing cloud properties and precipitation.

10
Global Albedo Research Vehicle (GARV)Kosmatka
(UCSD-SE) Ramanathan (UCSD-Scripps)
Low-Cost Composite Construction
Inverted V-Tail
Fuel Tanks
Preprogrammed mission can be monitored/ changed
on Iradium satellite network
Blended Wing
Hawaii to San Diego
Instrument 5 kg Mission 5000 km Cruise 35 m/sec
San Diego
Hawaii
11
Global Albedo Research Vehicle (GARV)Kosmatka
(UCSD-SE) Ramanathan (UCSD-Scripps)
Pyronameter
Low-Cost Composite Construction
Inverted V-Tail
Condensation Particle Counter
Total solar radiation
Concentrations of aerosals in clouds
Blended Wing
Optical Particle Counter
Hawaii to San Diego
Concentrations of particles in clouds
Instrument 5 kg Mission 5000 km Cruise 35 m/sec
San Diego
Hawaii
12
Global Albedo Research Vehicle (GARV)Kosmatka
(UCSD-SE) Ramanathan (UCSD-Scripps)
Payload Integration, Flight Controls, Instrument
Check-Out
Flight Testing El Mirage, CA
Payload Integration
Flight Testing Washington
13
In-Flight Health Monitoring for Unmanned Air
VehiclesProfessors Kosmatka, Lanza, Conte
Develop a system to monitor the structural
integrity of unmanned composite aircraft over
their life.
  • Automated maintenance scheduling
  • Emergency flight envelop changes
  • Fiber-optic and piezo-electric sensors
  • Embedded in composite wings, tails
  • Identify and locate structural anomalies ranging
    from material degradation to flight-induced
    battle damage
  • Algorithm to assess vehicle integrity
  • Ground Testing
  • Stiffness / Strength Correlation
  • Vibration, Acoustic, Fatigue Testing
  • Induced Damage Testing
  • Flight Testing

Active/Passive Sensing (pitch-catch)
14
Vibration Testing Flutter Analysis of GA-ASI
PredatorSponsor General Atomics Aeronautical
Systems
15
Hunter Aircraft
Polytec Scanning Laser Vibrometer
16
Summary
  • A wide range of UAVs are required to satisfy the
    needs of our military, our scientists, and our
    commercial industries.
  • UAVs allow one to study the atmosphere and ocean
    in unique ways This will lead to a better
    understanding of our planet.
  • UAV research, development, and education is
    becoming one of the aerospace industries most
    important needs.
  • Universities are ideally suited to develop
    inter-disciplinary education and research
    programs in UAV development because of the
    required low-cost expectations.
  • UCSD plans on being a leader in the development
    of new UAV technology.
About PowerShow.com