Computational Aeroelasticity – Online Short Course (Starts June 24, 2021) 24 June - 15 July 2021 Orlando, Florida

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Instructed by Dr. Walt Silva, Senior Research Scientist, Aeroelasticity Branch at NASA Langley Research Center, NASA Structures Lead for the Low Boom Flight Demonstrator (LBFD) X-59, AIAA Fellow

  • From 24 June 2021 – 15 July 2021 (4 Weeks, 4 Lectures, 8 Hours)
  • Every Thursday at 1300-1500 Eastern Time (all sessions will be recorded and available for replay; course notes will be available for download)
  • All students will receive an AIAA Certificate of Completion at the end of the course
Overview
Aeroelasticity consists of the modeling and understanding of the interactions between the structural dynamics and unsteady aerodynamics of a configuration such as an airplane, a launch vehicle, or a bridge. By its very nature, aeroelasticity is a multi-disciplinary field and can, therefore, include other disciplines such as controls (aeroservoelasticity) and thermal effects (aerothermoelasticity). Over the last few years, the field of aeroelasticity has been transitioning from its classical origins involving linear, frequency-domain methods to more modern, nonlinear, computational-based methods. The study and application of aeroelasticity involves the evaluation of critical loads and dynamics problems including, for example, gust loads and flutter. While flutter, a dangerous condition that can result in damage or destruction of the structure, is a serious safety concern that needs to be addressed, there are also other aeroelastic concerns that address the structural health and longevity, as well as performance, of the vehicle.

This 8-hour online short course covers concepts and terminology associated with aeroelasticity, including structural dynamics, unsteady aerodynamics, aeroservoelasticity, and recent developments such as computational reduced-order models. An important component of this course is to familiarize the participants with the classical methods as well as the more modern methods in aeroelasticity, in order to understand the various options available to the aeroelastician. The course will also cover basic experimental concepts, including videos of wind-tunnel flutter incidents.


Learning Objectives 

Obtain a better understanding of several critical mathematical concepts
Obtain a better understanding of the various unsteady aerodynamic theories
Obtain a better understanding of structural dynamic principles
Obtain a better understanding of aeroelastic principles
Obtain a better understanding of aeroservoelasticity
Obtain a better understanding of computational methods and reduced-order models


Who Should Attend
This short course provides a unified presentation of the various elements that are required for accurate aeroelastic and aeroservoelastic analyses.  This unified approach clarifies and enhances understanding of unsteady aerodynamics, structural dynamics, aeroelasticity, aeroservoelasticity, and reduced-order models.  Therefore, anyone interested in, or a practitioner of, anything related to aeroelasticity will benefit from the material provided in this course.

Course Fees:
  • AIAA Member Price: $595 USD
  • Non-Member Price: $795 USD
  • AIAA Student Member Price: $395 USD

Outline
  • Mathematical Foundations
    • Classification of Systems
    • Linear/Nonlinear and Time Invariant/Time Varying Concepts
    • Deterministic/Stochastic, Stationary/Nonstationary Systems
    • Influence Functions
    • StateSpace Modeling
    • System Identification
    • Examples/Discussion
  • Unsteady Aerodynamics
    • Classical Methods
    • Modern Linear Methods
    • Computational Fluid Dynamics (CFD) Methods
    • Examples/Discussion
  • Structural Analysis
    • Modal Analysis
    • Finite Element Models
    • Examples/Discussion
  • Aeroelasticity (AE)
    • Fundamental Concepts, Assumptions
    • Equations of Motion
    • Classical Solution Methods
    • Modern Solution Methods
    • Examples/Discussion
  • Aeroservoelasticity (ASE)
    • Definitions
    • Rational Function Approximations
    • Model Developments
    • Examples/Discussion
  • ReducedOrder Models
    • Fundamental Concepts
    • Method Development
    • Applications
Materials

Classroom hours / CEUs: 8 classroom hours / .8 CEU/PDH

Course Delivery and Materials

The course lectures will be delivered via Zoom.  You can test your connection here: https://zoom.us/test

 

Access to the Zoom classroom will be provided to registrants near to the course start date.

 

All sessions will be available on-demand within 1-2 days of the lecture.  Once available, you can stream the replay video anytime, 24/7. 

 

All slides will be available for download after each lecture.  No part of these materials may be reproduced, distributed, or transmitted, unless for course participants. All rights reserved.

Instructors

Dr. Walt Silva is a Senior Research Scientist and Engineer in the Aeroelasticity branch at the NASA Langley Research Center. Dr. Silva has more than 30 years of experience in industry, government, and academia in the fields of unsteady aerodynamics, structural dynamics, aeroelasticity, reduced-order models, nonlinear dynamics, and flutter testing. Dr. Silva has taught several invited short courses in aeroelasticity at national and international organizations. Dr. Silva is a NASA Floyd Thompson Fellow and a Fellow of the AIAA. He is also an adjunct professor at Old Dominion University and at the College of William & Mary.  Dr. Silva has been awarded Patent 8060350, "Method of Performing Computational Aeroelastic Analysis", based on his Reduced-Order Modeling (ROM) technology.  He is also the recipient of NASA's Exceptional Achievement Medal for his contributions in the development of nonlinear unsteady aerodynamic models.  Dr. Silva is currently the NASA Lead for Structures for the Low Boom Flight Demonstrator (X-59).