Optimizing dynamic pull-in threshold and periodic trajectories for magnetically actuated MEMS (magMEMS) in wearable sensors

Zhao L. He J.-H. Skrzypacz P. Bolatov A. Kuangaliyeva D. Ellis G. Pruchnik B. Putek P.
2025 Frontiers Media SA

Frontiers in Physics
2025 #13

Magnetically actuated micro-electro-mechanical systems (magMEMSs) are pivotal for wearable sensor applications that need high sensitivity, fast response, and compact integration, such as biomedical monitoring and motion-tracking devices. In this paper, we investigate the dynamic pull-in instability and periodic trajectory analysis of magMEMS models with current-carrying filaments, addressing critical challenges in a miniaturized sensor design. A simplified Galerkin approach is used to analyze a Lorentz-force-driven MEMS oscillator, deriving approximate expressions for the dynamic pull-in threshold—a key criterion for stable periodic operation—and the corresponding oscillation frequency and periodic solutions. Extensive numerical simulations support and validate the analytical results. These findings offer valuable insights to assist in the design and optimization of MEMS devices in wearable sensors. Copyright

dynamic pull-in , Galerkin approach , magMEMS , periodic solutions , singular MEMS oscillators , wearable sensors

Text of the article Перейти на текст статьи

Textile and Clothing School, Yancheng Polytechnic College, Yancheng, China
Department of Mathematical Sciences, Saveetha School of Engineering, SIMATS, Tamil Nadu, Chennai, India
School of Jia Yang, Zhejiang Shuren University, Zhejiang, Hangzhou, China
School of Mathematics and Big Data, Hohhot Minzu College, Inner Mongolia, Hohhot, China
School of Information Engineering, Yango University, Fuzhou, China
School of Sciences and Humanities, Mathematics Department, Laboratory for Electro-Mechanics and Mathematics with Applications (LEMMA), Nazarbayev University, Astana, Kazakhstan
Faculty of Electronics, Photonics and Microsystems, Wrocław University of Science and Technology, Wrocław, Poland

Textile and Clothing School
Department of Mathematical Sciences
School of Jia Yang
School of Mathematics and Big Data
School of Information Engineering
School of Sciences and Humanities
Faculty of Electronics

10 лет помогаем публиковать статьи Международный издатель

Книга Публикация научной статьи Волощук 2026 Book Publication of a scientific article 2026