A high-reliability acceleration switch based on a compliant bistable mechanism

IF 3.7 2区 工程技术 Q2 ENGINEERING, MANUFACTURING
Luqing Hu, Hongxi Wang, Bohan Zhao, Sijiao Wang, Yuan Xue
{"title":"A high-reliability acceleration switch based on a compliant bistable mechanism","authors":"Luqing Hu,&nbsp;Hongxi Wang,&nbsp;Bohan Zhao,&nbsp;Sijiao Wang,&nbsp;Yuan Xue","doi":"10.1016/j.precisioneng.2025.06.014","DOIUrl":null,"url":null,"abstract":"<div><div>Acceleration switches play a crucial role as control devices in the inertial control system. Their ability to make reliable contact and close has a direct impact on the safety and stability of the entire system. This paper presents the design of a passive bistable acceleration switch. The design is based on the switching characteristics of a three-segment fully compliant bistable mechanism (TSFCBM) and the principle of frictional vibration reduction, aiming to improve system stability and reliability through friction damping. Firstly, the nonlinear stiffness of the TSFCBM and the static design relationship of the bistable acceleration switch are analyzed. Secondly, a dynamic model of the bistable acceleration switch under the coupling action of multiple forces, such as inertial force, friction damping force, and elastic force, is established. Then, dynamic characteristic simulations and experiments are conducted. The relative error between the simulation results and the experimentally measured switch closing threshold is less than 6.7 %. Moreover, once the switch is closed, it remains in the closed state even when the acceleration signal disappears, demonstrating good threshold characteristics and reliability of the bistable characteristic switch. Next, based on the above, the features of the half-sine wave acceleration signal that enable the bistable acceleration switch to close stably are further analyzed. Finally, a mathematical model between pulse width and amplitude on the closure boundary is obtained, thereby providing a theoretical basis for the threshold design of the bistable acceleration switch.</div></div>","PeriodicalId":54589,"journal":{"name":"Precision Engineering-Journal of the International Societies for Precision Engineering and Nanotechnology","volume":"96 ","pages":"Pages 246-256"},"PeriodicalIF":3.7000,"publicationDate":"2025-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Precision Engineering-Journal of the International Societies for Precision Engineering and Nanotechnology","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S014163592500203X","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, MANUFACTURING","Score":null,"Total":0}
引用次数: 0

Abstract

Acceleration switches play a crucial role as control devices in the inertial control system. Their ability to make reliable contact and close has a direct impact on the safety and stability of the entire system. This paper presents the design of a passive bistable acceleration switch. The design is based on the switching characteristics of a three-segment fully compliant bistable mechanism (TSFCBM) and the principle of frictional vibration reduction, aiming to improve system stability and reliability through friction damping. Firstly, the nonlinear stiffness of the TSFCBM and the static design relationship of the bistable acceleration switch are analyzed. Secondly, a dynamic model of the bistable acceleration switch under the coupling action of multiple forces, such as inertial force, friction damping force, and elastic force, is established. Then, dynamic characteristic simulations and experiments are conducted. The relative error between the simulation results and the experimentally measured switch closing threshold is less than 6.7 %. Moreover, once the switch is closed, it remains in the closed state even when the acceleration signal disappears, demonstrating good threshold characteristics and reliability of the bistable characteristic switch. Next, based on the above, the features of the half-sine wave acceleration signal that enable the bistable acceleration switch to close stably are further analyzed. Finally, a mathematical model between pulse width and amplitude on the closure boundary is obtained, thereby providing a theoretical basis for the threshold design of the bistable acceleration switch.
一种基于兼容双稳态机制的高可靠性加速开关
加速度开关在惯性控制系统中起着至关重要的控制作用。他们能否进行可靠的接触和紧密联系,直接影响到整个系统的安全和稳定。本文介绍了一种无源双稳态加速度开关的设计。本设计基于三段式全柔性双稳机构(TSFCBM)的开关特性和摩擦减振原理,旨在通过摩擦阻尼提高系统的稳定性和可靠性。首先,分析了TSFCBM的非线性刚度和双稳态加速度开关的静态设计关系。其次,建立了惯性力、摩擦阻尼力和弹性力等多重力耦合作用下双稳态加速度开关的动力学模型;然后进行了动态特性仿真和实验。仿真结果与实验测量的开关合闸阈值的相对误差小于6.7%。而且,开关一旦闭合,即使加速度信号消失,也保持闭合状态,显示了双稳特性开关良好的阈值特性和可靠性。接下来,在此基础上,进一步分析了使双稳加速开关稳定合闸的半正弦波加速度信号的特征。最后,得到了闭合边界上脉冲宽度与幅值之间的数学模型,从而为双稳加速开关的阈值设计提供了理论依据。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
CiteScore
7.40
自引率
5.60%
发文量
177
审稿时长
46 days
期刊介绍: Precision Engineering - Journal of the International Societies for Precision Engineering and Nanotechnology is devoted to the multidisciplinary study and practice of high accuracy engineering, metrology, and manufacturing. The journal takes an integrated approach to all subjects related to research, design, manufacture, performance validation, and application of high precision machines, instruments, and components, including fundamental and applied research and development in manufacturing processes, fabrication technology, and advanced measurement science. The scope includes precision-engineered systems and supporting metrology over the full range of length scales, from atom-based nanotechnology and advanced lithographic technology to large-scale systems, including optical and radio telescopes and macrometrology.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术官方微信