SUPPRESSION OF LATERAL OSCILLATIONS OF FLEXIBLE ELEMENTS IN MACHINES AND DEVICES

摘要

Forced and parametric lateral oscillations of flexible elements (belts, cables, guy rapes, filaments, etc.) in machines and devices are studied. Mathematically the problem is presented as a partial differential equation describing interaction of parametric and forced vibrations of flexible element with due account of its geometrical and static non-linearities. By the mathematical simulation it is shown, that additional vibration loading of parametrically excited system can result in breakdown of parametric oscillations. On the base of this effect new approach to the suppression of unfavourable parametric vibrations of flexible elements is proposed.