... 13 01 2012 13 01 2012 beams (structures) differential algebraic equations linear synchronous motors motion control multidimensional systems nonlinear systems periodic control piezoelectric actuators servomechanisms structural acoustics vibration control vibrations...

... energy, can be used to create effective passive mitigation designs of structures under impulsive loads. damping elastic constants nonlinear acoustics nonlinear systems shock absorbers structural acoustics nonlinear stiffening nonlinear damping enhancement nonlinear energy sink...

... 12 08 2006 01 07 2008 acoustic resonance ball bearings elasticity nonlinear systems rotors shafts springs (mechanical) vibrations Some rotating machines, such as generators, have a rotor with an asymmetry in the shaft stiffness. Most of these rotors are supported...

... machine bearings nonlinear systems rotors rotor system sliding bearing rotating elastic medium finite element simulation lubrication layer self-sustained modes turbocharger The three-dimensional simulation of the dynamics of the rotor system (RS) combined with sliding bearings has...

... 2005 08 02 2006 vibrations structural acoustics transient response nonlinear systems system identification nonlinear systems flutter System identification can be employed to obtain simplified models of complex aeroelastic systems. Linear system identification methods...

... and (for nonlinear systems) periodically modulated nonlinearities via the Lyapunov-Floquet transformation. Then a master-slave separation of degrees of freedom is used and a relation between the slave coordinates and the master coordinates is constructed. Two possible order reduction techniques are suggested...

...Chung-Jen Lu Under proper working conditions, a ball-type automatic balancer can effectively reduce the imbalance vibrations of an optical disk drive. The proper working conditions can be determined by a stability analysis of the equilibrium states of the nonlinear system formed by the rotating...

...Muhammad Haroon; Douglas E. Adams; Yiu Wah Luk Conventional nonlinear system identification procedures estimate the system parameters in two stages. First, the nominally linear system parameters are estimated by exciting the system at an amplitude (usually low) where the behavior is nominally...

...Chulho Yang; Douglas E. Adams; Sam Ciray A novel method of experimental sensitivity analysis for nonlinear system identification of mechanical systems is examined here. It has been shown previously that embedded sensitivity functions, which are quadratic algebraic products of frequency response...

... an unbalance excitation as if the rotor were rotating in the negative (clockwise) direction. 24 02 2003 01 12 2004 rotors stators vibrations structural acoustics mechanical contact nonlinear systems electric machines wear Rotor-to-stator rubbing can degrade the performance...

.... Previous studies have shown that input shaping can be used on linear systems to produce point-to-point motion with no residual vibration. This paper extends command-shaping theory to nonlinear systems, specifically systems with Coulomb friction. This idea is applied to a PD-controlled mass with Coulomb...

... to contradiction between experiments and theory. This contradiction draws the attention to the limitations of the small parameter approach related to the highly interrupted cutting condition. 23 12 2003 10 06 2004 milling milling machines cutting tools vibrations nonlinear systems...