The second edition of Rotor Systems book covers analysis and identification in rotor systems including rotor dynamic phenomena, gyroscopic effects and instabilities. It is biased towards the FEM analysis of complex rotors and covers the unbalanced identification and bearing dynamic parameter identification algorithms, sensors and exciters used in rotor system and related signal conditioning equipment. Control of rotor system including analysis of simple and multi-DOF rotor system has been expanded. Covers rotor analysis from simple single degree of freedom to multi-degree of freedom with lots of solved examples Bearing and seals theory are discussed with perspective to rotor dynamicsDiscusses finite element method and transfer matrix methods for torsional and transverse vibration analysisContains basic information on the condition monitoring of various types of rotating machineryReviews control of rotor system includes analysis of simple and multi-DOF rotor system. This book is aimed at senior undergraduate/graduate students in mechanical engineering, rotordynamics, rotating machinery/turbomachinery, and related fields.