On the problem of self-excited vibration quenching by means of parametric excitation

摘要

The contribution deals with the problem of quenching self-excited vibrations of a mechanical system by means of parametric excitation. Parametric excitation is introduced via harmonic variation of a spring stiffness. Attention is given to systems having three or more degrees of freedom and where several modes of self-excited vibrations can be initiated. As an example, a three-mass system is analyzed. The analysis is complemented by a numerical simulation of the governing system of differential equations.