2020-03-10

Introduction to Dynamics of Structures

In the first part of today's class I gave a number of definitions regarding Dynamics of Structures and later introduced some of the different types of Dynamic Loadings, Dynamic Analysis (Determinisitic and Non Deterministic) and finally i gave a sketchy summary of some of the different tecniques needed to write the equation of motion.

Single Degree of Freedom System - Free Vibrations

In the second part, I introduced the single most useful model of dynamic behaviour, the Single Degree Of Freedom system (or SDOF).
After a discussion of the linearization procedure for a generical force in a neighborhhood of the position of equilibrium and some consideration on the stability, we found the solution of the free vibration problem for either a non dissipative system or a dissipative system.

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Giacomo Boffi