FRICTION-INDUCED PARAMETRIC RESONANCES IN DISCS: EFFECT OF A NEGATIVE FRICTION–VELOCITY RELATIONSHIP

摘要: Abstract Parametric resonances are studied which occur when an elastic system is rotated around annular disc with friction having a negative slope velocity. The consists of two spring–dashpots, in the transverse and in-plane (circumferential) directions, common point mass. complete arrangement driven through stiffness damper. It demonstrated that effect (including friction–velocity relationship) (i) to introduce additional parametric destabilised by damper, (ii) reduce regions instability other resonances.