One of the aircraft mandatory requirements demands that aircraft flight is flutter-free. Flutter is a dynamic aeroelastic instability due to the interaction of inertial, elastic and aerodynamic forces. It is an undesirable phenomenon for safety requirements in aircraft since it causes divergent oscillations that may lead to structural damage or failure, performance and ride comfort degradation, or loss of control, in addition to comfort. Costly redesign is required if flutter is discovered at the aircraft certification stage. Emergence of flutter compromises not only the long-term durability of the wing structure but also the operational safety, flight performance and energy efficiency of the aircraft. Effectual means of flutter prevention are, therefore, mandatory in the certification of new flight vehicles. In the present chapter, flutter problems and solution in predicting their occurrence are discussed in a fundamental and elementary manner, to reveal the physical principles and their essential characteristics. The treatment is manifested by the use of simplified aerodynamic models and examples. However, this should not distract our attention to the relevant phenomenon to be revealed, which will be more complex with the presence of other physical elements that are here neglected and simplified mathematical approach adopted.


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    Titel :

    Flutter Stability of a Typical Section-An Elementary Discussion


    Beteiligte:

    Erschienen in:

    Introduction to Aeroelasticity ; Kapitel : 6 ; 245-267


    Erscheinungsdatum :

    2023-09-04


    Format / Umfang :

    23 pages




    Medientyp :

    Aufsatz/Kapitel (Buch)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch