This course offers the opportunity to integrate the preparation acquired in the basic courses with advanced methodologies and tools for the dynamic analysis of aerospace structures in time and Fourier-Laplace domain. The response of linear structural systems to both deterministic and stochastic dynamic loads is studied, introducing some essential issues on random vibration theory. The course also presents order reduction techniques (static and dynamic condensation) of finite element models together with seismic excitation problems on aerospace structures such as aircraft and launchers. A special focus is also given to the main structural damping models for studying vibration control with dynamic absorbers. Finally, an overview is given of propagation problems in aerospace structures in which fast dynamic processes are involved. Numerical integration methods are used to study the responses of these structural systems, highlighting the differences with respect to the responses obtained with linear analysis.
Learning objectives
General
After completing this course, the student will be able to understand all the fundamental aspects related to the dynamics of aerospace structures, study the problems of response to random seismic loads with performance evaluation, design a passive and active control system of structural vibrations using dynamic absorbers and evaluate nonlinear effects in the case of structures characterized by fast dynamics. Finally, the student will have matured the cultural background to dialogue with certification bodies for the qualification to fly / launch of structural systems and with the bodies / professionals responsible for experimental dynamic tests.
