Wpływ tarcia konstrukcyjnego na drgania wału z tuleją

In the paper analysis of vibration of a dynamical system with permanent joint between shaft and sleeve with structural friction taken into account is presented. The shaft is modelled as continuous system. For needs of the analysis mathematical model has been built, describing two states of the joint, i.e. The state in which act the friction torques, end the state when the the cooperating elements undergo mutal slip. The obtained differential equations of motion have been solved by making use of the Krylov - Bogolubov - Mitropolski asymptotic method. The equation describing vibration amplitude corresponding to torsional motion of the joint elements in function of the excitation torque and excitation frequency has been found. The obtained results are presented in the form of resonant curves.