.... After a shock, different parts of the system oscillate. If one of them is excited at a particular frequency, such as its proper frequency, important oscillations appear and can lead to the deterioration of the system by introducing important stresses. In this paper, we propose an analysis in order...

... doubling, one-well, and two-well chaos, superharmonic resonances and on and off chaotic oscillations are found. 08 05 2009 04 03 2010 27 09 2010 27 09 2010 beams (structures) bifurcation chaos electrostatic actuators micromechanics oscillations resonance vibrations...

..., having a cubic form as the charge-voltage characteristics. The modal approximation and the finite differences numerical scheme are used to analyze the dynamical behavior of the system: Resonant oscillations and bifurcation diagram leading to chaos are observed for some values of the polarization voltage...

...Andrew J. Dick; Balakumar Balachandran; C. Daniel Mote, Jr. Intrinsic localized modes are localization events caused by intrinsic nonlinearities within an array of perfectly periodic coupled oscillators. Recent developments in microscale fabrication techniques have allowed for the studies...

... investigation of this rig from the identification of system parameters to the validation of stability boundaries and vibration frequencies of shimmy motion. The experimental results confirm the validity of those tire models that include delay effects. A peculiar quasiperiodic oscillation detected during...

...Attilio Maccari A complex nonlinear system under state feedback control with a time delay corresponding to two coupled nonlinear oscillators with a parametric excitation is investigated by an asymptotic perturbation method based on Fourier expansion and time rescaling. Four coupled equations...

...Madeleine Pascal In this paper, we present an analytical method to investigate the behavior of a two-degree-of-freedom oscillator excited by dry friction. The system consists of two masses connected by linear springs. These two masses are in contact with a driving belt moving at a constant velocity...

...Giuseppe Rega; Narakorn Srinil We investigate nonlinear forced oscillations of sagged inclined cables under planar 1:1 internal resonance at avoidance. To account for frequency avoidance phenomena and associated hybrid modes, actually distinguishing inclined cables from horizontal cables...

...Zsolt Szabó; Attila Lukács The current paper investigates the nonlinear stationary oscillations of a quarter vehicle model with two degrees of freedom subjected to a vertical road excitation. The damping of the wheel suspension has a bilinear characteristic, so that the damping strength is larger...

...Michael A. Michaux; Aldo A. Ferri; Kenneth A. Cunefare This work examines how friction-induced oscillations in a traditional mass-on-a-moving-belt system are affected by high-frequency excitations, commonly referred to as dither signals. Two different friction laws are considered: a Stribeck...

..., and the effects of the problem nonlinearity on the beam motion are analyzed. In particular, the superharmonics oscillations and the resonances are investigated in depth. Combining Eqs. 16 , 9 and the continuity conditions Eq. (8a–d) we get five polynomial equations with respect to ε , which...

...Jeff Moehlis; Eric Shea-Brown; Herschel Rabitz Variational methods are used to determine the optimal currents that elicit spikes in various phase reductions of neural oscillator models. We show that, for a given reduced neuron model and target spike time, there is a unique current that minimizes...