4 research outputs found
Magnetorheological damping and semi-active control of an autoparametric vibration absorber
Nonlinear oscillations of a coupled autoparametrical system with ideal and nonideal sources of power
An ideal and nonideal autoparametrical system excited by DC motor with unbalanced
mass is presented in this work. The system consists of the body of mass
M
which is hung on a nonlinear spring with a nonlinear
damper, and a pendulum of the length l and mass m mounted to the body of mass M. It is assumed
that the motion of the pendulum is damped by nonlinear resistive forces. Vibrations of both models
(ideal and nonideal) are researched. Solutions for the system response are presented for specific
values of the parameters of system and the energy transfer between modes of vibrations is
studied. Next excited vibrations for both models have been examined analytically and numerically.
Except different kinds of periodic vibrations, there may also appear chaotic vibrations