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American Institute of Aeronautics and Astronautics

    Course Overview

    Robust Aeroservoelastic Stability Analysis


    This course will introduce the concept of robustness to the study of flutter and aeroservoelasticity. The models that are traditionally used for stability analysis are augmented with uncertainties to reflect potential errors and unmodeled dynamics. The mu method is developed to directly account for these uncertainties. The resulting robust stability margin is a worst-case measure of the smallest flutter speed for the system as effected by any of the uncertainty values. This course demonstrates the procedure for formulating a model in the mu framework and computing the associated robust stability margin. Furthermore, the course discusses methods to compute uncertainties in the models based on flight data analysis. Several applications from recent flight tests are presented for which the mu method was used to compute robust aeroservoelastic stability margins.

    Key Topics:

    • State-space modeling of flutter and aeroservoelasticity
    • Considering uncertainty in open-loop and closed-loop models
    • Using flight data to identify models and associated uncertainty
    • Computing robust flutter margins

    Who Should Attend:

    This course is intended for engineers interested in aeroservoelasticity and flutter. The course will be of particular value to anyone interested in flight test program in which flutter is a concern. The students are assumed to be familiar with basic structural dynamics but not robust stability theory. The material is at a level for graduate students and practicing engineers.

    Course Information:

    Type of Course: Instructor-Led Short Course
    Course Level: Intermediate

    Course scheduling available in the following formats:

    • Course at Conference
    • Onsite Course
    • Stand-alone/Public Course

    Course Length: 2 days
    AIAA CEU's available: yes