STABILITY OF PERIODICALLY OPERATING DYNAMIC SYSTEIVIS

This paper focuses on parametric vibrations excited on mechanical systems, mechanisms and machinery. It derives the stability conditions of free and forced vibration of periodically operating systems, and investigates the distributions of instability domains for low variation excitation. The extensive and abstract theory will be discussed briefly, by using a specific interpretation. Possibilities of applications of the results are also described. The main purpose of the paper is to facilitate deepening in the comprehensive theory and, at the same time, to cover the fundamental knowledge needed in spreading mechanical and vibration applications