基于驻极体换能器的自传感微振动隔离器设计与建模

doi:10.3901/JME.2025.23.145

机械工程学报 ›› 2025, Vol. 61 ›› Issue (23): 145-155.doi: 10.3901/JME.2025.23.145

• 机械动力学 • 上一篇

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基于驻极体换能器的自传感微振动隔离器设计与建模

蒋帅, 朱铎, 郭振坤

北京建筑大学机电与车辆工程学院北京 100044

收稿日期:2024-12-17 修回日期:2025-04-28 发布日期:2026-01-22
作者简介:蒋帅,男,2001年出生。主要研究方向为振动控制。E-mail:js1736957811@126.com
朱铎,男,1999年出生,硕士研究生。主要研究方向为声学超材料。E-mail:15998760876@163.com
郭振坤(通信作者),男,1989年出生,博士,副教授,博士研究生导师。主要研究方向为噪声与振动控制。E-mail:guozhenkun@bucea.edu.cn
基金资助:
国家自然科学基金(12472004);北京市教育委员会科学研究计划 (KM202410016005)资助项目

Design and Modeling of Self-sensing Micro-vibration Isolator Based on Electret Transducer

JIANG Shuai, ZHU Duo, GUO Zhenkun

School of Mechanical, Electrical and Vehicle Engineering, Beijing University of Civil Engineering and Architecture, Beijing 100044

Received:2024-12-17 Revised:2025-04-28 Published:2026-01-22

摘要/Abstract

摘要： 航天器微振动隔离系统中嵌入紧凑、轻便传感器的需求是当前的研究重点，旨在有效检测振动隔离器的细微振动并预警潜在危害。提出一种基于驻极体换能器的自传感微振动隔离器，运用哈密顿原理，推导出其理论模型，研究了系统的耦合动力学，为模型设计提供指导。此外，采用有限元法对所提出模型进行了仿真验证，以检验模型的有效性。研究结果表明，驻极体换能器是微振动隔离器嵌入式传感器的理想选择。通过合理的尺寸设计和布置方式，驻极体换能器能够精确检测振动隔离器负载的平动和旋转运动。研究结果为开发具有高灵敏度和集成性的自传感微振动隔离器提供了理论依据，展示了其在空间应用中的广阔前景。

关键词: 驻极体, 微振动, 自传感, 振动隔离器, 微重力空间应用

Abstract: The demand for compact and lightweight sensors embedded in micro-vibration isolators in spacecraft is a focus of current research, aiming to effectively detect subtle vibrations of the isolators and warn of potential hazards. A self-sensing micro-vibration isolator based on electret transducer is proposed by using Hamilton’s principle and the theoretical model is established. The coupled dynamics of the system are studied, and guidance is provided for design of the model. In addition, the proposed model is simulated and verified using the finite element method to verify and extend the validity of the model. The results show that the electret transducer is an ideal candidate for embedded sensors in micro-vibration isolators. Through reasonable size design and deployment methods, the electret transducer can accurately detect translational and rotational motion under the load of the isolator. The results provide a theoretical basis for the development of micro-vibration isolators with high sensitivity and integration, demonstrating its broad prospects in space applications.

Key words: electret, micro-vibration, self-sensing, vibration isolators, microgravity space applications

中图分类号:

O328

蒋帅, 朱铎, 郭振坤. 基于驻极体换能器的自传感微振动隔离器设计与建模[J]. 机械工程学报, 2025, 61(23): 145-155.

JIANG Shuai, ZHU Duo, GUO Zhenkun. Design and Modeling of Self-sensing Micro-vibration Isolator Based on Electret Transducer[J]. Journal of Mechanical Engineering, 2025, 61(23): 145-155.

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基于驻极体换能器的自传感微振动隔离器设计与建模

Design and Modeling of Self-sensing Micro-vibration Isolator Based on Electret Transducer

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