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PREFACE:

This book represents the natural evolution of the lecture notes of the course “Dynamics and Vibrations of Machines”held at the Politecnico di Milano in the academic years 1981–1992 and of a book already published for the course “Simulation and modelling of mechanical systems”(academic years 1993–2014).

 These collected works can be considered as a natural extension of the didactic work carried out in this area, initially by Prof. O. Sesini and later by Profs. A. Capello, E. Massa and G. Bianchi. The contents of this book also sum up decades of experience gained by the research group which is part of the Section of Mechanical Systems at the Politecnico di Milano (former Institute of Applied Mechanics).

 It also draws upon the research topics developed by a research group of the Department of Mechanics, to which the authors belong. Said research was generally based on problems encountered in the industrial world, performed in collaboration with organizations and research centres including ABB, ENEL (Italian General Electricity Board), FS (Italian Railways), Bombardier, Alstom, Ansaldo, ENEL-CRIS, ISMES, Fiat, Ferrari and Pirelli, as well as countless others. In this context, the following research topics were considered of prime importance:

• analytical and experimental investigations on the vibration of power lines; 

• slender structures—wind interaction; 

• aeroelastic behaviour of suspension bridges; 

• dynamic behaviour of structures subjected to road and rail traffic;

 • rail vehicle dynamics, pantograph—catenary interaction, train—railway infrastructure interaction, etc.;

 • ground vehicle dynamics; and

 • rotor dynamics.

These themes impacted significantly on the development of this book. The educational content of this volume is primarily addressed to students of engineering taking courses in mechanics, aerospace, automation and energy, disciplines introduced recently by the Italian Ministry of Education in compliance with the New Italian University Order. However, given its organic structure and the comprehensive overview of the subjects dealt with, the book could also serve as a useful tool to professionals in the industry.