...Ryan J. Monroe; Steven W. Shaw; Alan H. Haddow; Bruce K. Geist Centrifugal pendulum vibration absorbers are used for reducing engine-order torsional vibrations in rotating machines. The most common configuration of these devices utilizes a bifilar suspension in which the absorber mass is suspended...

...Steven W. Shaw; Bruce Geist This paper considers the dynamic response and performance characteristics of a special class of centrifugal pendulum torsional vibration absorbers. The absorbers of interest are designed by selection of the path that their center of mass follows, such that their dynamics...

...M. Senesh; A. Wolf; O. Gottlieb In this paper, we develop and implement a nonlinear model based procedure for the estimation of rigid-body motion via an indirect measurement of an elastic appendage. We demonstrate the procedure by motion analysis of a compound planar pendulum from indirect...

...Yukio Ishida; Tsuyoshi Inoue; Tomohiko Fukami; Motohiko Ueda Centrifugal pendulum vibration absorbers (CPVA) have been used for a long time as a method to suppress torsional vibration. Recently, roller type CPVA, that has a similar characteristic but simpler structure, have been investigated...

...Roland Horvath; George T. Flowers; Jerry Fausz Passive balancing techniques have received a great deal of attention in recent literature, with much of this work focused on ball balancer systems. However, for certain applications, balancing systems that use pendulums rather than rolling balls may...

... preserve the lowest Floquet exponents of the original system, which are the same as the eigenvalues in 36 , 37 . Next consider the five mass inverted pendulum with periodic follower force in Fig. 3 . The linearized system at ( x 1 , … , x 5 ) = ( η 1 , … , η 5...

...Hiroshi Yabuno, Associate Professor, Member, ASME; Tomohiko Murakami; Jun Kawazoe; Nobuharu Aoshima, Professor, The dynamic response of a parametrically excited cantilever beam with a pendulum is theoretically and experimentally presented. The equation of motion and the associated boundary...

...Phillip H. Nguyen; Jerry H. Ginsberg A simple pendulum whose pivot executes harmonic motion in the vertical direction is a prototype for systems subjected to parametric excitation. Forced excitation of this system is represented as a harmonically varying torque whose frequency is taken...

... the established, analytic approaches gives the best prediction of the onset of resonance in the stochastic layer compared to numerical investigation. The stochastic layers in the periodically-driven pendulum are discussed as another example. Illustrations of stochastic layers in the twin-well Duffing oscillator...

... vibration isolation feedback structural engineering pendulums eigenvalues and eigenfunctions This paper experimentally investigates a feedback control technique known as eigenvector scaling which may be used to localize modes and thus control vibration propagation in flexible structures...