Prerequisite: ENAE655 or equivalent; ENAE644 or equivalent; ENAE651 or equivalent

This course will demonstrate the practical application of Smart Materials and Spatially Distributed Transducers to the design and control of advanced structures. The course will be focused toward the active control of continuum structures using advance Spatially Distributed Parameter System control techniques and concepts. Effective system parameterizations will be used to reduce distributed parameter system models to classical canonical state space form for the purpose of robust adaptive structure design. Application case studies, including morphing structures will be employed as necessary to enhance the students intuition and understanding of Distributed Parameter Systems.

0101(23841) STAFF (Seats=1, Open=1, Waitlist=0) Books FF

Topic: Advanced Structural Dynamics

1. Background and Introduction
2. Classical Models and Definitions
3. Integral Representations
4. Spatial Weighting of Transducers
5. Generalized Functions as a Compact Representation of Spatial Weighting
6. Review of Optimal Control Performance Metrics and Techniques
• Modeling for Control
  
• MIMO Performance Issues
  
• Controllability
  
• Observability
  
• State Feedback
  
• State Estimation
  
• Model Based Controllers
  
• LQG/LTR Design Methodologies

7. Lumped Parameter System Control Extensions to Spatially Distributed Systems
8. DPS MIMO Performance Metrics
9. Morphing Airfoil Design

Grading: (1/3) Quizes  and  Homeworks; (1/3) Mid-Term; (1/3) Final

MAE 589C Space Flight Mechanics
Dr. R.H. Tolson (North Carolina State University)
Space Flight Mechanics (SFM) is a foundational course for research or applications in any field using artificial satellites to accomplish the objectives. Whether it be a low Earth orbiting communication satellite or a trajectory from the Earth to Pluto, the topics covered in Space Flight Mechanics will provide the student with the methods and tools to address the problem. Most orbits are well approximated by simple Keplerian two-body motion and this topic is covered exhaustively in SFM. However, all satellite orbits are perturbed from Keplerian motion and first order perturbations due to atmospheric drag, gravity anomalies and other forces are essential to orbit design. Gaussian, Langrangian, special and general perturbation approaches to orbit perturbation are emphasized. In fact, sun-synchronous and frozen orbits, used extensively for Earth observation and remote sensing, depend on orbit perturbations for their very existence. Such special orbits are covered to provide the student with a real world orbit design experience.  Finally, the Lagrangian points in the three body problem have recently been used for numerous applications and both the existence, location and stability of these equilibria are covered.

MAE 589D Spacecraft Attitude Dynamics & Control 1
Dr. P.A. Cooper (North Carolina State University)
There are two main functions in control of spacecraft motion. The first, in the realm of particle dynamics, is analysis and control of the trajectory of the center of mass of the spacecraft. The second, in the realm of three-dimensional rigid body dynamics, is control of the orientation of the spacecraft or components on the spacecraft.  This course is concerned with the latter function.  Reference frames are defined, both inertial and body-fixed, and methods for describing orientation and orientation rate change with respect to these frames are introduced.  The course includes an in-depth review of rigid body dynamics with development and solutions of the Euler equations of motion and methods for providing dynamic stability. Torques, both secular and applied, and methods for applying control torques to spacecraft are studied as is internal and external momentum transfer devices.  Methods for sensing orientation are described in some depth.  With an understanding of the dynamics of the spacecraft, actuation devices, and orientation sensing methods, the student is then able to apply this knowledge in the control of the spacecraft attitude control. Attitude control techniques as applied to spacecraft are covered in a companion course following this course. 

ECE 686 Nanophotonics
Dr. Mool Gupta (University of Virginia)
Dr. Harry C. Dorn (Virginia Tech)

NOTE: This course requires an on-site lab. Students must be able to travel to Charlottesville and Blacksburg during Week 11.

NANOCARBON MATERIALS
VT Course #ECE 5984, UVa Course #ECE 695
Spring 2008
Tuesday and Thursday 2-3:15 p.m.

Instructors:
Dr. Harry C. Dorn:
Professor of Chemistry &
Director, Center for Self-Assembled Nanostructures and Devices
(CSAND) and the Carbonaceous Nanomaterials Center (CNC)
Virginia Tech
Office: 1109 Hahn Hall; Blacksburg, VA 24061
E-mail: hdorn@vt.edu
Phone: 540-231-5953
Fax: 540-231-3255
Web Page: http://www.dorn.chem.vt.edu/teaching.html
http://www.learn.vt.edu (Blackboard)

Dr. Mool C. Gupta
Langley Distinguished Professor &
Director for NSF I/UCRC Laser Center
Dept. of Electrical & Computer Engineering
University of Virginia – P.O. Box 400743
Thornton Hall, 351 McCormick Rd.
Charlottesville, Virginia 22904-4743
E-mail: mgupta@virginia.edu
Phone: 434-924-6167
Fax: 434-924-8818
Web Page: http://www.faculty.virginia.edu/laser

The goal of this course is to introduce students to the "state-of-the-art" in the area on advanced carbon nanomaterials including: (fullerenes, metallofullereness, nanotubes, graphene) and their potential applications in nanotechnology.. Students are expected to gain knowledge of structure, properties, fabrication, and applications of carbonaceous nanomaterials. Structure control at the nanoscale and effect of structure on properties will be discussed.

Background References:

1. Di Ventra, Massimiliano; Evoy, Stephane; Heflin, James R., Jr. (Editors) Introduction to Nanoscale Science and Technology Publisher: Kluwer Academic Publishers, (2004).
2. Y. Gogotsi (Editor), Carbon Nanomaterials (CRC Press, Boca Raton) 2006.
3. Hugh O. Pierson, “Handbook of Carbon, Graphite, Diamond and Fullerenes,” Noyes Publications, Park Ridge, NJ, 1994
4. P.J.F. Harris, “Carbon Nanotubes and Related Structures,” Cambridge University Press, Cambridge, 1999.
5. O.A. Shenderova, V.V. Zhirnov, and D.W. Brenner, Carbon Nanostructures, Critical Reviews in Solid State and Materials Sciences, v. 27(3/4) 227–356 (2002)

Grading Scheme:
Midterm Test 30%
Final 30%
(Homework) 10%
Term paper 20%
Laboratory 10%

Tentative Class Schedule:

AOE 5114 High-Speed Aerodynamics
Dr. Bernard Grossman (Virginia Tech)
The course  presents  some of the important theoretical concepts of inviscid fluid flow with emphasis on high-speed gasdynamics. Flows at high speeds often have correspondingly high temperatures, due to shock heating and high stagnation enthalpies. These high-temperature effects may lead to chemical reactions and eventually to non-equilibrium thermodynamics and chemistry.

This course presents a unified treatment of real gasdynamics. Traditional treatment of this subject is usually presented with specialized derivations for perfect gases and separately, for real gases or chemically-reacting flows. These presentations are unified by deriving as much as possible for general gases, and then indicating the results of perfect gas assumptions or equilibrium chemistry assumptions. The course begins with a thorough review of classical thermodynamics for single species and for reacting mixtures of gases. Then equilibrium chemistry concepts for reacting mixtures of thermally perfect gases is presented. Applications for equilibrium air is described and software is made available for air calculations for temperatures up to 25,000K and densities between 10-7 and 103 the value of sea level density. The governing equations are then derived and specialized for equilibrium and frozen flows. Shock and contact surface discontinuities are considered for all flow regimes. A general treatment of one-dimensional gasdynamics is presented and applications are made for both perfect gas and equilibrium chemical reactions in nozzles and shock waves.  Analytic solutions (by method of characteristics) are presented for one-dimensional unsteady and two-dimensional steady flows of perfect gases. The course concludes with a discussion of flow simultude and brief overviews of transonic and hypersonic flows.

The pre-requisites for the course are an undergraduate compressible flow class. Detailed notes will be distributed in the class. Additional information on course may be found on the website: http://research.nianet.org/~grossman/AOE5114.html

About the instructor: Dr. Bernard Grossman serves as the Vice President of Education and Outreach for the National Institute of Aerospace in Hampton, Virginia. He is responsible for the development of a unique, multi-university graduate program, a broadly-based continuing education program which includes knowledge re-use strategies for NASA and a large public outreach program involving teacher development in science, technology, engineering and mathematics. He comes to NIA from Virginia Polytechnic Institute and State University, where he was a Professor and Department Head of Aerospace and Ocean Engineering. He also served as the Director of the Multidisciplinary Analysis and Design (MAD) Center for Advanced Vehicles. He is currently on leave from his faculty position at Virginia Tech. His research interests include computational fluid dynamics and multidisciplinary design optimization, and has published more than 250 technical papers. He has taught courses in computational fluid dynamics, numerical analysis and various topics in fluid mechanics and gasdynamics. He is a Fellow of the American Institute of Aeronautics and Astronautics, where he has served as an Associate Editor of the AIAA Journal, a member of the Fluid Dynamics and Multidisciplinary Design Optimization Technical Committees. He was the Technical Chair of the 12th AIAA Computational Fluid Dynamics Conference and the General Chair of the 11th AIAA/ISSMO Multidisciplinary Analysis and Optimization Conference. Dr. Grossman may be reached at grossman@nianet.org or at (757) 325-6730.

ECE 5984 Special Topics: Space Science
Dr. Robert Clauer (Virginia Tech)
This course will describe the electrodynamics and plasma processes responsible for space weather.   It will describe the plasma environment from the Sun to the Earth’s upper atmosphere.   The basic plasma physics required for the understanding of this environment will be developed.   The course will describe the expansion of the solar wind and the interaction of the solar wind the the Earth’s magnetosphere.  The processes that couple energy, momentum, and mass from the solar wind to the magnetosphere will be described.   The dynamics of the “geospace” environment will be described as well as the effects that the dynamics of this environment have on modern technologies, including  solid state devices, satellite technology, communications and global navigation systems, ground based power systems and long distance pipelines.

Prerequisites ECE 3106 (Electromagnetic Fields)  or equivalent
Senior standing or graduate status or permission from the instructor.

ME 5734 Advanced Aeroacoustics
Dr. Christopher Fuller (Virginia Tech)
The fundamental principles underlying the generation, transmission, and reception of acoustics waves will be presented. Methods for analytically investigating various acoustical situations encountered in practice will be developed. The application of these methods to typical engineering acoustical problems with physical interpretation of the results will be studied.