A Novel Adaptive Scheme to Improve the Performance of Feedforward Active Vibration Control Systems

Batista, Eduardo Luiz Ortiz; Barghouthi, Maurizio Radloff; Lopes, Eduardo Márcio de Oliveira

doi:10.1109/tmech.2021.3104307

Cited by 16 publications

(5 citation statements)

References 40 publications

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“…No Modo 1, é possível ler todos os acelerômetros e giroscópios de até 3 IMUs (a uma taxa de 250 Hz), além de fazer leituras de um canal do ADC a 1 kHz, e acionamento não adaptativo dos atuadores (com estímulos pré-definidos, como harmônicos e ondas quadradas, dentre outros). Por outro lado, o Modo 2 (controle ativo) pode funcionar tanto para modelagem de caminhos (secundário e de feedback) [2], quanto para o controle adaptativo propriamente dito usando diferentes algoritmos adaptativos [4], [20].…”

Section: Software Supervisóriounclassified

“…O segundo experimento envolve controle ativo de vibrações usando o algoritmo controller-vibration-aware FxNLMS (CVA-FxNLMS), o qual corresponde a uma variação do FxNLMS mais robusta a problemas que ocorrem no transitório de aprendizagem do controlador adaptativo [4]. Nesse contexto, considera-se uma perturbação harmônica de 38 Hz aplicada à viga, com o posicionamento de sensores e atuadores descrito no início desta seção.…”

Section: B Experimento 2: Controle Ativounclassified

“…Essas duas formas de controle podem ser consideradas complementares, sendo frequentemente utilizadas em conjunto visando estabelecer esquemas híbridos de controle de vibrações [3]. O presente trabalho é dedicado à pesquisa em controle ativo de vibrações, área essa que tem atraído grande atenção nas últimas décadas [4].…”

Section: Introductionunclassified

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Um Sistema Experimental de Código Aberto para Pesquisa em Controle Ativo de Vibrações

Batista¹,

Citadin²,

Marin³

et al. 2022

Anais Do XL Simpósio Brasileiro De Telecomunicações E Processamento De Sinais

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Resumo-O presente trabalho é dedicado ao desenvolvimento de um sistema experimental para realização de atividades de pesquisa em controle ativo de vibrações por antecipação usando filtros adaptativos. O objetivo é obter um sistema de baixo custo e alta qualidade que possa ser reproduzido e aperfeiçoado com certa facilidade por outros pesquisadores. O desenvolvimento de tal sistema envolve escolha de componentes, projeto de placa de circuito impresso, desenvolvimento de firmware, projeto de uma estrutura experimental de referência, e também a elaboração de um software supervisório personalizado. Resultados experimentais são apresentados visando ilustrar a efetividade do sistema desenvolvido.Palavras-Chave-Controle ativo de vibrações, filtragem adaptativa, FxNLMS.

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Section: Software Supervisóriounclassified

Section: B Experimento 2: Controle Ativounclassified

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Um Sistema Experimental de Código Aberto para Pesquisa em Controle Ativo de Vibrações

Batista¹,

Citadin²,

Marin³

et al. 2022

Anais Do XL Simpósio Brasileiro De Telecomunicações E Processamento De Sinais

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“…For the limitations of the feedback control, the feedforward control strategy has received great attention (Dai et al, 2021; Hakvoort and Beijen, 2023; Luiz et al, 2022; Qin et al, 2022; Song et al, 2023). The feedforward control can improve the vibration isolation performance, by predicting vibration and compensating for the time delay of the feedback control.…”

Section: Introductionmentioning

confidence: 99%

Active vibration hybrid control strategy based on multi-DOFs piezoelectric platform

Pu,

Fu,

Wang

et al. 2023

Journal of Intelligent Material Systems and Structures

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With the increasing requirements for vibration isolation in multiple degrees of freedom (multi-DOFs), active control strategy is becoming more meaningful. However, the vibration isolation performance is limited by the time delay of feedback control, and cannot meet higher requirements. Therefore, this paper proposes a multi-DOFs active vibration hybrid control (AVHC) strategy based on a piezoelectric platform. The AVHC integrates the adaptive feedforward control based on the modified recursive least squares (MRLS) algorithm, and the feedback control based on the integral force feedback (IFF) algorithm. To achieve advanced response, the ground-based vibration signal is offset by the MRLS algorithm. To further reduce the coupling of multi-DOFs, the feedback and feedforward coordinates are fused through the matrix transformation, and the signals are linearly superimposed by the AVHC. The experimental results show that the AVHC can further reduce the resonance peaks of the three translational directions ( X/ Y/ Z) compared with the feedback (FB) control. The resonance peaks are reduced from 14.6 dB (FB) to 3.11 dB (AVHC), from 14.56 dB (FB) to 5.14 dB (AVHC), and from 12.44 dB (FB) to 3.78 dB (AVHC) in X/ Y/ Z directions, respectively. The attenuation rates are improved by 73.36%, 66.19%, and 63.10% in X/ Y/ Z directions, respectively.

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“…As the isolation performance is limited, a passive vibration isolation system cannot be applied to higher-demand scenarios [ 25 , 26 ]. Active vibration control can effectively compensate for the shortcomings of passive vibration isolation systems with the use of control algorithms [ 27 , 28 , 29 , 30 ]. Chang et al [ 31 ] designed an active control technique with visual feedback using adaptive sliding mode control and filtered LMS algorithms for vibration suppression comparison and verified the effectiveness of both visual feedback-based active control methods in suppressing low-frequency vibrations of equipment on translation or pitch platforms.…”

Section: Introductionmentioning

confidence: 99%

An Active Vibration Isolation and Compensation System for Improving Optical Image Quality: Modeling and Experiment

Wang

Xiong

et al. 2023

Micromachines

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Optical detection equipment (ODE) is subjected to vibrations that hamper the quality of imaging. In this paper, an active vibration isolation and compensation system (VICS) for the ODE is developed and systematically studied to improve the optical imaging quality. An active vibration isolator for cameras is designed, employing a dual-loop control strategy with position compensation and integral force feedback (IFF) control, and establishing the mapping relationship between vibration and image quality. A performance metric for evaluating images is also proposed. Finally, an experimental platform is constructed to verify its effectiveness. Based on the experimental results, it can be concluded that the proposed VICS effectively isolates vibrations, resulting in a reduction of 13.95 dB in the peak at the natural frequency and an 11.76 Hz widening of the isolation bandwidth compared with the system without it. At the same time, the experiments demonstrate that the image performance metric value increases by 46.03% near the natural frequency.

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A Novel Adaptive Scheme to Improve the Performance of Feedforward Active Vibration Control Systems

Cited by 16 publications

References 40 publications

Um Sistema Experimental de Código Aberto para Pesquisa em Controle Ativo de Vibrações

Um Sistema Experimental de Código Aberto para Pesquisa em Controle Ativo de Vibrações

Active vibration hybrid control strategy based on multi-DOFs piezoelectric platform

An Active Vibration Isolation and Compensation System for Improving Optical Image Quality: Modeling and Experiment

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