Completed notes of the course

Pagina 1

Structural Dynamics and Aeroelasticity Notes from prof. Quaranta’s lessons Jacopo Alberti, Luigi Maria Boccia and Lorenzo Lucatello 2023 - 2024 Preface Questa dispensa ` e stata scritta sulla base degli appunti presi a lezione. Non ` e in alcun modo pensata per poter sostituire un libro di testo o il seguire le lezioni n´ e se ne assicura la totale correttezza. Questa dispensa viene distribuita gratuitamente e non deve essere venduta. Nel caso di errori da correggere ` e possibile scrivere a [email protected] o [email protected] This book has been written using our notes taken in class. This is not meant to substitute the following classes or the book Professor Quaranta suggested. This book is free. It’s not meant to be sold. If you find errors please write at [email protected] [email protected] First edition, 2024 Second edition, 2024. Correction of errors in 2.5.3, 3.4, 3.5.3, 4.1.1, 4.2 0 Structural Dynamics and Aeroelasticity Index 1 Introduction 8 1.1 What is structural dynamics? . . . . . . . . . . . . . . . . . . . . . . . . . 8 1.2 What is Aeroelasticity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 1.3 Divergence and Flutter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 1.3.1 Divergence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 1.3.2 Flutter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 1.4 Brief history of Aeroelasticity . . . . . . . . . . . . . . . . . . . . . . . . . 10 2 Static Aerolasticity 11 2.1 Rigid wing model: typical section . . . . . . . . . . . . . . . . . . . . . . . 11 2.1.1 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 2.2 Divergence . . . . . . . . . . . . . . . . . . . . . . . . .…