Vibration Control of a Structure by Using a Tunable Absorber and an Optimal Vibration Absorber Under Auto-Tuning Control

Nagaya, Kosuke; Kurusu, A.; Ikai, Sigeo; Shitani, Y.

doi:10.1006/jsvi.1999.2443

Cited by 89 publications

(50 citation statements)

References 15 publications

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“…These designs utilise certain combinations of passive mechanical elements (springs and dampers) to reduce the vibration amplitude of a system. With recent advances in motion sensing and actuating, the design of vibration absorbers that utilise actively actuated elements has become more attractive (NAGAYA et al, 1999).…”

Section: Different Vibration Suppression Strategiesmentioning

confidence: 99%

Tuned vibration absorber for suppression of rest tremor in Parkinson's disease

Hashemi

Golnaraghi

Patla

2004

Med. Biol. Eng. Comput.

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A simple approach for the suppression of the tremor associated with Parkinson's disease is presented. The proposed system is a tuned vibration absorber (TVA), which has been very effective in the suppression of vibrations in an experimental model of the human arm with two degrees of freedom. Theoretical and numerical methods were used to study the behaviour of the arm model and to develop an effective tremor reduction approach. Based on these studies, a vibration absorber was designed, tested numerically and fabricated for experimental testing. Experimental investigations indicated that optimum control performance was related to the position of the controller and the excitation frequency. With a distance of 160 mm from the end of forearm, the TVA was found to have the best performance, and, for different tremor frequencies, the vibration of the experimental model was reduced by more than 80%.

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Section: Different Vibration Suppression Strategiesmentioning

confidence: 99%

Tuned vibration absorber for suppression of rest tremor in Parkinson's disease

Hashemi

Golnaraghi

Patla

2004

Med. Biol. Eng. Comput.

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“…In recent years, semi-active and active-passive vibration absorbers have been proposed to suppress harmonic excitations with time-varying frequency [2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18]. Semi-active vibration absorbers can be separated into several types: variable stiffness through mechanical mechanisms [2,8,16,17] or using controllable new materials [6,12,13,18], variable inductor connected in series with the piezoelectric patch for piezoelectric absorbers [7,[9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Application of dynamic vibration absorbers in structural vibration control under multi-frequency harmonic excitations

et al. 2008

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“…Therefore, a number of measures for tuning the frequencies of DVAs have been developed, including tuning the curvature of two parallel curved beams [1], changing effective coil number of a spring [2], controlling the space between two spring leaves [3], adjusting the length of threaded flexible rods [4], changing effective length of a flexible cantilever beam by moving the intermediate support [5], varying the pressure of air springs [6], and adopting a variable magnetic spring controlled by current [7]. Although they are able to successfully adjust the frequencies, most of them face such challenges as large dimensions, large weight, slow adjusting speed, and high energy consumption.…”

Section: Introductionmentioning

confidence: 99%

Vibration Reduction for a Flexible Arm Using Magnetorheological Elastomer Vibration Absorber

Bian

Liang

Gao

2018

Shock and Vibration

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The application of the magnetorheological elastomer (MRE) to nonlinear vibration control for a flexible arm is investigated in this paper. A semiactive control method is suggested to reduce vibration via the internal resonance and the MRE. To establish a vibration energy transfer channel, a tuned vibration absorber based on the MRE is developed. Through adjusting the coil current, the frequency of the vibration absorber can be readily controlled by the external magnetic field, thereby maintaining the internal resonance condition with the flexible arm. By the perturbation analysis, it is proven that the internal resonance can be successfully established between the flexible arm and the MRE vibration absorber, and the vibration energy of the flexible arm can be transferred to and dissipated by the MRE vibration absorber. Through numerical simulations, virtual prototyping simulations, and experimental investigation, it is verified that the proposed method and the suggested MRE vibration absorber are effective in controlling nonlinear vibration of the flexible arm.

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Vibration Control of a Structure by Using a Tunable Absorber and an Optimal Vibration Absorber Under Auto-Tuning Control

Cited by 89 publications

References 15 publications

Tuned vibration absorber for suppression of rest tremor in Parkinson's disease

Tuned vibration absorber for suppression of rest tremor in Parkinson's disease

Application of dynamic vibration absorbers in structural vibration control under multi-frequency harmonic excitations

Vibration Reduction for a Flexible Arm Using Magnetorheological Elastomer Vibration Absorber

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