Analysis of the Vibrational Behavior of a Bolted Beam in the Presence of Friction

This paper presents the effect of friction-induced vibration between two beams in relative motion according to Timoshenko’s beam theory. system is composed cantilever screwed together, allowing friction force occur contact interface. The nonlinear behavior can be divided into phases: stick and slip. differential equations phases are developed, with precision transition condition each phase. A number experiments carried out order validate theoretical model, main contribution which test these specimens modes greater than one. demonstrate influence changing clamping on stiffness structure thus its frequency damping ratio. comparison theory reveals a good agreement. In addition, tests show an increase modal ratio when frequencies increased. leads considerable energy dissipation by structure, making it choice as damper.