Zobrazeno 1 - 10
of 106
pro vyhledávání: '"Najib Kacem"'
Publikováno v:
Actuators, Vol 12, Iss 10, p 374 (2023)
We propose to study the nonlinear stroke and lower-order modal interactions of a clamped–clamped shallow-arch flexible micro-electrode. The flexible electrode is electrically actuated through an in-plane parallel-plates field superimposed over out-
Externí odkaz:
https://doaj.org/article/82ccab2862d242aba8eeff52e02f14fa
Publikováno v:
Sensors, Vol 22, Iss 19, p 7657 (2022)
The functionalization of internal resonance (IR) is theoretically and experimentally demonstrated on a nonlinear hybrid vibration energy harvester (HVEH) based on piezoelectric (PE) and electromagnetic (EM) transductions. This nonlinear phenomenon is
Externí odkaz:
https://doaj.org/article/a8247fbe54cc4ba79b23546e5f774298
Publikováno v:
Micromachines, Vol 13, Iss 5, p 655 (2022)
In this paper, we develop a new approach in order to understand the origin of the quadrature error in MEMS gyroscopes. As the width of the flexure springs is a critical parameter in the MEMS design, it is necessary to investigate the impact of the wi
Externí odkaz:
https://doaj.org/article/86a0b261f79a474881998800ec203384
Publikováno v:
Actuators, Vol 10, Iss 2, p 25 (2021)
In this paper we study a generic model of a nonlinear quasiperiodic vibration energy harvester (VEH) based on electromagnetic transduction. The proposed device consists of multiple moving magnets guided by elastic beams and coupled by repulsive magne
Externí odkaz:
https://doaj.org/article/f4ca01ea7fa54d80a99498126ead2e50
Publikováno v:
Sensors, Vol 20, Iss 18, p 5295 (2020)
We present a mode localized mass sensor prototype based on a hybrid system excited at a fixed frequency slightly below the resonances. Indeed, we show, both theoretically and experimentally, that this condition yields higher sensitivities and similar
Externí odkaz:
https://doaj.org/article/45dd29f5d4d84b5d8c75f52ab26f394e
Publikováno v:
Proceedings, Vol 2, Iss 13, p 1084 (2018)
This paper presents a nonlinear analytical model of MEMS mass sensor, which is composed of two cantilevers of 98 µm and 100 µm length, 20 µm width and 1.3 µm thick. They are connected by a coupling beam and only the shortest cantilever is actuate
Externí odkaz:
https://doaj.org/article/fd2cf773770f4a33b09d75bb77a9743c
Publikováno v:
Micromachines, Vol 9, Iss 11, p 575 (2018)
In order to investigate the effects of geometric imperfections on the static and dynamic behavior of capacitive micomachined ultrasonic transducers (CMUTs), the governing equations of motion of a circular microplate with initial defection have been d
Externí odkaz:
https://doaj.org/article/79503a09613840ef970587731820615f
Publikováno v:
Applied Sciences, Vol 7, Iss 7, p 684 (2017)
Perfect structural periodicity is disturbed in presence of imperfections. The present paper is based on a realistic modeling of imperfections, using uncertainties, to investigate the robustness of the collective nonlinear dynamics of a periodic coupl
Externí odkaz:
https://doaj.org/article/0924bd02b0734dfda3b58f91cd365bef
Multiple internal resonances in three electrostatically coupled microbeams have been theoretically investigated and were utilized to multi-channel mass detection. The frequency ratio among the three electrostatically coupled resonators of different s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0d4ac8f2abeeb8d1f973fdacd289d701
https://doi.org/10.21203/rs.3.rs-2463619/v1
https://doi.org/10.21203/rs.3.rs-2463619/v1
Publikováno v:
Journal of Applied Mechanics. 89
The demand for detecting minute mass in biology and chemistry promotes the research of high sensitivity and strong robustness mass sensor based on MEMS resonators in the past few decades. The nonlinear behaviors are introduced to improve sensitivity,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eee579f418ec2f56c203a238eeb6838e
https://doi.org/10.1115/1.4055543
https://doi.org/10.1115/1.4055543