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American Institute of Aeronautics and Astronautics

    A Tutorial on a Unified Approach for Computational Aeroelasticity

    Member Price: $99
    Non-Member Price: $149 USD
    Student Member Price: $9.99 USD

    DirectTech On-Demand – From the 2018 SciTech Forum

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    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 1 hour 30 minute tutorial covered 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 also covered basic experimental concepts, including videos of wind-tunnel flutter incidents.

     

    Key Topics

    • Mathematical Foundations of Aeroelasticity
    • Unsteady Aerodynamics
    • Structural Analysis
    • Aeroelasticity (AE)
    • Aeroservoelasticity (ASE)
    • Reduced-Order Models

     

    Who Should Attend

    This tutorial is a must for anyone working in the field of aeroelasticity or having an interest or need to understand the discipline.

     

    Instructor

    Dr. Walt Silva is a Senior Researcher 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 an Associate Fellow of the AIAA. He is also an adjunct professor at Old Dominion University and at the College of William & Mary.

     

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