Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Ayman M. Alneamy"'
Modeling and Structural Analysis of MEMS Shallow Arch Assuming Multimodal Initial Curvature Profiles
Autor:
Ayman M. Alneamy, Hassen M. Ouakad
Publikováno v:
Mathematics, Vol 12, Iss 7, p 970 (2024)
The present investigation focuses on the design and mathematical modeling of a microelectromechanical (MEMS) mode-localized based sensor/actuator system. This device incorporates a sensitive clamped–clamped shallow arch microbeam with an initial cu
Externí odkaz:
https://doaj.org/article/319acbdc011c495cbe323266e729d63a
Autor:
Ayman M. Alneamy
Publikováno v:
Micromachines, Vol 14, Iss 10, p 1972 (2023)
This work investigates the primary and secondary resonances of an electrostatically excited double-clamped microbeam and its feasibility to be used for sensing applications. The sensor design can be excited directly in the vicinity of the primary and
Externí odkaz:
https://doaj.org/article/3f86e95e364f4ed79ed50c43e767b519
Autor:
Hassen M. Ouakad, Ayman M. Alneamy
Publikováno v:
Micromachines, Vol 14, Iss 5, p 903 (2023)
This paper investigated the mechanical performance of an electrostatically tunable microbeams-based resonators. The resonator was designed based on two initially-curved microbeams that are electrostatically coupled, offering the potential for improve
Externí odkaz:
https://doaj.org/article/0bd254118f374ded808b425887d155d0
Autor:
Ayman M. Alneamy, Hassen M. Ouakad
Publikováno v:
Micromachines, Vol 13, Iss 7, p 989 (2022)
With the constant need for the development of smart devices, Micro-Electro-Mechanical Systems (MEMS) based smart sensors have been developed to detect hazard materials, micro-particles or even toxic substances. Identifying small particles using such
Externí odkaz:
https://doaj.org/article/cede08c4719c49e79d2f5bf928c22edc
Publikováno v:
Journal of Vibration and Acoustics. 143
This article provides criteria for the design of electrostatic arch micro-tweezers. The tweezers can be operated in two modes: a traditional quasi-static mode where a direct current voltage commands the tweezers arms along a trajectory to manipulate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1b5cc66a2511b1fafbe54e2666e81a38
https://doi.org/10.1115/1.4048298
https://doi.org/10.1115/1.4048298
Autor:
Majed Al-Ghamdi, Katherine M. E. Stewart, Eihab M. Abdel-Rahman, Resul Saritas, Hamidreza Nafissi, Alexander Penlidis, Ahmad Abdel-Aziz, Alison J. Scott, Ayman M. Alneamy, M E Khater
Publikováno v:
2019 20th International Conference on Solid-State Sensors, Actuators and Microsystems & Eurosensors XXXIII (TRANSDUCERS & EUROSENSORS XXXIII).
We report a novel electrostatic MEMS sensor to detect solutes in aqueous media. This is the first demonstration of an electrostatic sensor in aqueous media. The sensor is excited electrostatically and its response is measured capacitively. It is equi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9a9533a0276da341b297367125e24184
https://doi.org/10.1109/transducers.2019.8808826
https://doi.org/10.1109/transducers.2019.8808826
Autor:
Majed Al-Ghamdi, Glenn R. Heppler, M E Khater, Eihab M. Abdel-Rahman, Ayman M. Alneamy, Ahmed K. Abdel-Aziz
Publikováno v:
Journal of Micromechanics and Microengineering. 30:095005
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7f13f41c6e9927507fc06b2dd8ad5454
https://doi.org/10.1088/1361-6439/ab94d1
https://doi.org/10.1088/1361-6439/ab94d1
Publikováno v:
International Journal of Non-Linear Mechanics. 118:103298
This paper presents a novel electrostatic micro-tweezers to manipulate particles with diameters up to 14 μ m. The tweezers consist of two grip-arms mounted to an electrostatically actuated initially curved micro-beam. It exploits bistable equilibria
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::836ddaef11853ea526df37deaafae814
https://doi.org/10.1016/j.ijnonlinmec.2019.103298
https://doi.org/10.1016/j.ijnonlinmec.2019.103298
Autor:
Majed Al-Ghamdi, Ayman M. Alneamy, Glenn R. Heppler, Eihab M. Abdel-Rahman, Sangtak Park, M E Khater
Publikováno v:
Journal of Applied Physics. 125:024304
We present electrostatic Micro-Electromechanical System actuators equipped with dimples and contact pads. The introduction of dimples and contact pads is shown to prevent stiction between the actuator and bottom electrodes and minimize dielectric cha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7027cb85de6c752d88270310c9c95305
https://doi.org/10.1063/1.5053597
https://doi.org/10.1063/1.5053597
Autor:
Majed Al-Ghamdi, Katherine M. E. Stewart, Ayman M. Alneamy, M E Khater, Eihab M. Abdel-Rahman, Alexander Penlidis
Publikováno v:
Journal of Micromechanics and Microengineering. 29:015005
A novel electrostatic MEMS gas sensor is demonstrated. It employs a dynamic-bifurcation detection technique. The sensor detects ethanol vapor in a binary mode, reporting ON-state (1) for concentrations above a preset threshold and OFF-state (0) for c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ceaf13a7e3e537c6a49044b86f14bf24
https://doi.org/10.1088/1361-6439/aaedf9
https://doi.org/10.1088/1361-6439/aaedf9