Dynamics of Machinery I

This textbook is based on the first part of the Dynamics of Machinery lecture course given since 1993 to students of the English Stream in the Department of Engineering Sciences (D.E.S.), now F.I.L.S., at the University Politehnica of Bucharest. It grew in time from a postgraduate course taught in Romanian between 1985 and 1990 at the Strength of Materials Chair.

This book is application oriented and limited to what can be taught in an one-semester (28 hours) lecture course. It also contains many exercises to support the tutorial, where the students are guided to write simple finite element computer programs in Matlab, and to assist them in solving problems as homework.

The course aims to: (a) increase the knowledge of machinery vibrations; (b) further the understanding of dynamic phenomena in machines; © provide the necessary physical basis for the development of engineering solutions to machinery problems; and (d) make the students familiar with machine condition monitoring techniques and fault diagnosis.

Finite element modeling of rotor-bearing systems and hydrodynamic bearings are treated in the second part. Analysis of rolling element bearings, machine condition monitoring and fault diagnosis, balancing of rotors as well as elements of the dynamic analysis of reciprocating machines are presented in the third part. No reference is made to the vibration of discs, impellers and blades.