Zobrazeno 1 - 10
of 40
pro vyhledávání: '"Amal Z. Hajjaj"'
Autor:
Amal Z. Hajjaj, Nizar Jaber
Publikováno v:
Micromachines, Vol 12, Iss 11, p 1381 (2021)
Controlling the nonlinearities of MEMS resonators is critical for their successful implementation in a wide range of sensing, signal conditioning, and filtering applications. Here, we utilize a passive technique based on geometry optimization to cont
Externí odkaz:
https://doaj.org/article/cc52c77b067c412dbd0992259375b6b6
Publikováno v:
Nonlinear Dynamics. 111:8021-8038
A new multi-sensing scheme via nonlinear weakly coupled resonators is introduced in this paper, which can simultaneously detect two different physical stimuli by monitoring the dynamic response around the first two lowest modes. The system consists o
Publikováno v:
Nonlinear Dynamics. 111:2311-2325
This study presents a thorough theoretical and experimental investigation on the nonlinear damping of in-plane micromachined electromechanical resonators. More specifically, experiments are conducted on an electrically actuated bridge resonator, and
Publikováno v:
Nonlinear Dynamics. 110:2033-2048
The dynamics of micro-/nanoelectromechanical systems (M/NEMS) curved beams have been thoroughly investigated in the literature, commonly for curved arch beams actuated with electrodes facing their concave surface. Except for few works on slacked carb
Publikováno v:
International Journal of Mechanics and Materials in Design. 18:105-123
The adequate modeling of the micro/nano arc resonators' dynamics is vital for their successful implementation. Here, a size-dependent model, wherein material structure, porosity, and micro-rotation effects of the grains are considered, is derived by
Publikováno v:
IEEE Sensors Journal. 20:1778-1785
We report a new gas sensing technique based on the simultaneous tracking of multiple modes of vibration of an electrothermally heated bridge resonator operated near the buckling point. The proposed technique maximizes the sensitivity of the sensor to
Autor:
Amal Z. Hajjaj, Nizar Jaber
Publikováno v:
Volume 9: 17th International Conference on Multibody Systems, Nonlinear Dynamics, and Control (MSNDC).
In this paper, we utilize a passive technique based on geometry optimization to control the nonlinearities and the dynamical response of MEMS resonators. To achieve this, we propose a new hybrid shape combining a straight and initially curved microbe
Publikováno v:
Nonlinear Dynamics. 99:407-432
We investigate in a silicon micromachined arch beam the activation of a one-to-one internal resonance between the first symmetric and first antisymmetric modes simultaneously with the activation of a two-to-one internal resonance between these modes
Publikováno v:
Nonlinear Dynamics. 99:393-405
We investigate, experimentally and theoretically, the linear mode coupling between the first symmetric and antisymmetric modes of an electrothermally tuned and electrostatically actuated micromachined arch resonator. The arch is excited using an anti
Autor:
Mohammad I. Younis, Nitin M Batra, Amal Z. Hajjaj, Pedro M. F. J. Da Costa, Karumbaiah N. Chappanda, M. A. A. Hafiz
Publikováno v:
Sensors and Actuators A: Physical. 292:11-16
Conventional pressure sensors rely on diaphragms with large surface areas, which deform in response to pressure. Down scalability of these devices is one of the major challenges of the technology along with reducing the overall actuation voltage and