Research on active-passive integrated vibration isolator based on metal rubber and piezoelectric actuator

IF 3.7 3区材料科学 Q1 INSTRUMENTS & INSTRUMENTATION

Smart Materials and Structures Pub Date : 2024-08-27 DOI:10.1088/1361-665x/ad6ed0

Jiaxi Jin, Xuan Sun, Yuechen Liu, Zhaobo Chen

引用次数: 0

Abstract

The paper introduces a novel active-passive integrated vibration isolator based on metal rubber and piezoelectric actuator, along with an adaptive active vibration control strategy. The active control strategy employs the adaptive dynamic step filtered-x normalized least mean squares algorithm, allowing the step size to adaptively adjust with the error. The secondary control path of the algorithm is modeled using the enhanced rate-dependent Prandtl–Ishlinskii model and the auto-regressive with extra inputs model. The active-passive integrated vibration isolator achieves broadband vibration isolation from 10 to 200 Hz. Compared to passive isolation, the transmissibility decreases from 0.99 to 0.056 at 10 Hz, from 3.02 to 0.068 at the resonance frequency, and from 0.057 to 0.046 at 200 Hz. This study provides a theoretical and experimental foundation for the design of a novel, broadband, and efficient active-passive integrated vibration isolator structure and active control method.

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基于金属橡胶和压电致动器的主被动一体化隔振器研究

本文介绍了一种基于金属橡胶和压电致动器的新型主被动一体化隔振器，以及一种自适应主动振动控制策略。该主动控制策略采用自适应动态步长滤波-x 归一化最小均方差算法，允许步长随误差自适应调节。该算法的二级控制路径采用了增强型速率相关普兰德-伊什林斯基模型和带有额外输入的自动回归模型。主动-被动一体化隔振器实现了 10 至 200 Hz 的宽带隔振。与被动隔振相比，传递率在 10 Hz 时从 0.99 降至 0.056，在共振频率时从 3.02 降至 0.068，在 200 Hz 时从 0.057 降至 0.046。这项研究为设计新型、宽带、高效的主被动一体化隔振器结构和主动控制方法提供了理论和实验基础。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Smart Materials and Structures 工程技术-材料科学：综合

CiteScore

7.50

自引率

12.20%

发文量

317

审稿时长

3 months

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