Damping characteristics of an impact damper and its application

Ema, Satoshi; Marui, Etsuo

doi:10.1016/0890-6955(95)00073-9

Cited by 51 publications

(14 citation statements)

References 7 publications

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“…These nonlinearities introduce mistuning that can significantly reduce vibration mitigation performance. Nonlinear vibration absorbers, among which we can cite the autoparametric vibration absorber [10,11], the nonlinear energy sink [12][13][14][15][16] and other variants [17][18][19][20][21][22][23], represent an interesting alternative to linear vibration absorbers in view of their increased bandwidth.…”

Section: Introductionmentioning

confidence: 99%

A fully passive nonlinear piezoelectric vibration absorber

Lossouarn

Deü

Kerschen

2018

Phil. Trans. R. Soc. A.

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The objective of this study is to develop the first fully passive nonlinear piezoelectric tuned vibration absorber (NPTVA). The NPTVA is designed to mitigate a specific resonance of a nonlinear host structure. To avoid the use of synthetic inductors which require external power, closed magnetic circuits in ferrite material realize the large inductance values required by vibration mitigation at low frequencies. The saturation of an additional passive inductor is then exploited to build the nonlinearity in the NPTVA. The performance of the proposed device is demonstrated both numerically and experimentally.This article is part of the theme issue 'Nonlinear energy transfer in dynamical and acoustical systems'.

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Section: Introductionmentioning

confidence: 99%

A fully passive nonlinear piezoelectric vibration absorber

Lossouarn

Deü

Kerschen

2018

Phil. Trans. R. Soc. A.

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“…Roberson [9] showed that by adding a cubic nonlinearity to a classical passive system, the cancellation band of the device increases with respect the one of the linear damper [10]. Since then many types of nonlinear absorbers are developed which as representative examples of the vast list in this domain we can name: pendulum-type absorbers [11], autoparametric absorbers [12], systems with softening springs, for instance arrays of Belleville washers mounted back to back [13], impact systems [14] and nonlinear energy sink (NES) [15]. The NES systems in their original developments consist of a pure cubic nonlinear system (with no linear part) i.e.…”

Section: Introductionmentioning

confidence: 99%

Extended complexification method to study nonlinear passive control

et al. 2019

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The present research work aims to design a passive vibration control based on nonlinear energy pumping. An extended asymptotic approach is introduced based on the invariant manifold approach for the case of 1:1 resonance. It consists in introducing an extended form of Manevitch's complex variables, taking into consideration higher harmonics, enabling the detection of the invariant manifold of the system at fast time scale. At the slow time scale, equilibrium points and singularities are identified analytically in order to predict periodic regimes and strongly modulated responses. The example of a passive shunt loudspeaker using a nonlinear absorber is studied. Unlike classical investigations, the first and third harmonics are taken into consideration. It is demonstrated that the presence of the third harmonic improves the approximations of the results. Different cases are considered, where the obtained analytical results are in good agreement with those obtained via direct numerical integration of the principal system of equations.

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“…• Effective application to suppress excess vibration. In the past few years, behavior of impact dampers has been investigated experimentally, analytically and numerically [6][7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Suppressing Undesired Vibration of 3R Robot Arms using Impact Dampers

Rashidifar¹,

Ahmadi²

2014

IJMECH

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The behavior of a vibration system suppressed with an impact damper is investigated, where the impact damper is simplified as a combination of spring and viscous damping. The analytical answer for the contact duration is developed using iteration perturbation technique. Iteration perturbation is a new analytical technique which can solve strongly nonlinear equations. In the presented work an impact damper is used to reduce the undesired vibration of an industrial robot arm. For this reason a 3R robot is equipped with a simple model of a single unit impact damper which is constructed using spring, mass and viscous damper. The output forces of robot with and without impact damper are compared and effects of using the impact damper on correct application of the robot are shown.

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Damping characteristics of an impact damper and its application

Cited by 51 publications

References 7 publications

A fully passive nonlinear piezoelectric vibration absorber

A fully passive nonlinear piezoelectric vibration absorber

Extended complexification method to study nonlinear passive control

Suppressing Undesired Vibration of 3R Robot Arms using Impact Dampers

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