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Amal Z. Hajjaj
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Proceedings Papers

Geometry Optimization for Resonator Nonlinearities and Modes Controlling

Amal Z. Hajjaj, Nizar Jaber
Proc. ASME. IDETC-CIE2021, Volume 9: 17th International Conference on Multibody Systems, Nonlinear Dynamics, and Control (MSNDC), V009T09A038, August 17–19, 2021
Paper No: DETC2021-68529
DOI: https://doi.org/10.1115/DETC2021-68529
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Topics: Geometry, Optimization
Proceedings Papers

Wide Range Highly Sensitive Pressure Sensor Based on Heated Micromachined Arch Beam

Nouha Alcheikh, Amal Z. Hajjaj, Mohammad I. Younis
Proc. ASME. IDETC-CIE2019, Volume 4: 24th Design for Manufacturing and the Life Cycle Conference; 13th International Conference on Micro- and Nanosystems, V004T08A010, August 18–21, 2019
Paper No: DETC2019-97995
DOI: https://doi.org/10.1115/DETC2019-97995
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Topics: Arches, Micromachining, Pressure sensors, Pressure, Resonance, Biomedicine, Bridges (Structures), Buckling, Carbon nanotubes, Cooling
Proceedings Papers

A Sensitive Resonant Gas Sensor Based on Multimode Excitation of a Buckled Beam

Amal Z. Hajjaj, Nizar Jaber, Nouha Alcheikh, Mohammad I. Younis
Proc. ASME. IDETC-CIE2019, Volume 4: 24th Design for Manufacturing and the Life Cycle Conference; 13th International Conference on Micro- and Nanosystems, V004T08A012, August 18–21, 2019
Paper No: DETC2019-98148
DOI: https://doi.org/10.1115/DETC2019-98148
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Topics: Excitation, Resonance, Sensors, Thermal conductivity, Absorption, Bridges (Structures), Buckling, Chemical reactions, Microelectromechanical systems, Stability
Journal Articles

Theoretical and Experimental Investigation of Two-to-One Internal Resonance in MEMS Arch Resonators

Feras K. Alfosail, Amal Z. Hajjaj, Mohammad I. Younis
Journal: Journal of Computational and Nonlinear Dynamics
Article Type: Research-Article
J. Comput. Nonlinear Dynam. January 2019, 14(1): 011001.
Paper No: CND-18-1222
DOI: https://doi.org/10.1115/1.4041771
Published Online: November 19, 2018
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Topics: Arches, Excitation, Resonance, Microelectromechanical systems, Bifurcation
Proceedings Papers

Experimental and Theoretical Study of Two-to-One Internal Resonance of MEMS Resonators

Amal Z. Hajjaj, Feras K. Alfosail, Mohammad I. Younis
Proc. ASME. IDETC-CIE2018, Volume 6: 14th International Conference on Multibody Systems, Nonlinear Dynamics, and Control, V006T09A035, August 26–29, 2018
Paper No: DETC2018-85539
DOI: https://doi.org/10.1115/DETC2018-85539
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Topics: Microelectromechanical systems, Resonance, Excitation, Arches, Bifurcation, Dynamic response, Stiffness, Vibrational modes
Proceedings Papers

Effect of Initial Curvature on the Static and Dynamic Behavior of MEMS Resonators

Amal Z. Hajjaj, Nouha Alcheikh, Mohammad I. Younis
Proc. ASME. IDETC-CIE2017, Volume 6: 13th International Conference on Multibody Systems, Nonlinear Dynamics, and Control, V006T10A044, August 6–9, 2017
Paper No: DETC2017-67791
DOI: https://doi.org/10.1115/DETC2017-67791
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Topics: Microelectromechanical systems, Resonance, Shapes, Arches, Stiffness, Waves
Proceedings Papers

Electrostatically Tunable Nanomechanical Shallow Arches

Syed N. R. Kazmi, Amal Z. Hajjaj, Pedro M. F. J. Costa, Mohammad I. Younis
Proc. ASME. IDETC-CIE2017, Volume 4: 22nd Design for Manufacturing and the Life Cycle Conference; 11th International Conference on Micro- and Nanosystems, V004T09A011, August 6–9, 2017
Paper No: DETC2017-67845
DOI: https://doi.org/10.1115/DETC2017-67845
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Topics: Arches, Silicon-on-insulator, Cathode rays, Electrodes, Electron beams, Filtration, Lithography, Semiconductor wafers, Silicon, Temperature
Proceedings Papers

Scalable Pressure Sensor Based on Electrothermally Operated Resonator

Amal Z. Hajjaj, Md Abdullah Al Hafiz, Nouha Alcheikh, Mohammad I. Younis
Proc. ASME. IDETC-CIE2017, Volume 4: 22nd Design for Manufacturing and the Life Cycle Conference; 11th International Conference on Micro- and Nanosystems, V004T09A009, August 6–9, 2017
Paper No: DETC2017-67785
DOI: https://doi.org/10.1115/DETC2017-67785
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Topics: Pressure sensors, Pressure, Resonance, Bridges (Structures), Cooling, Design, Diaphragms (Mechanical devices), Diaphragms (Structural), Finite element model, Microelectromechanical systems
Proceedings Papers

Tunable Bandpass Filter Based on Electrothermally and Electrostatically Actuated MEMS Arch Resonator

Amal Z. Hajjaj, Md Abdullah Al Hafiz, Mohammad I. Younis
Proc. ASME. IMECE2016, Volume 10: Micro- and Nano-Systems Engineering and Packaging, V010T13A029, November 11–17, 2016
Paper No: IMECE2016-66700
DOI: https://doi.org/10.1115/IMECE2016-66700
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Topics: Arches, Filters, Microelectromechanical systems, Resonance, Hardening, Heat, Semiconductor wafers, Shapes, Silicon-on-insulator, Stiffness
Proceedings Papers

Electrothermally Tunable Bridge Resonator

Amal Z. Hajjaj, Nouha Alcheikh, Abdallah Ramini, Md Abdullah Al Hafiz, Mohammad I. Younis
Proc. ASME. IDETC-CIE2016, Volume 4: 21st Design for Manufacturing and the Life Cycle Conference; 10th International Conference on Micro- and Nanosystems, V004T08A007, August 21–24, 2016
Paper No: DETC2016-59892
DOI: https://doi.org/10.1115/DETC2016-59892
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Topics: Bridges (Structures), Buckling, Microbeams, Compressive stress, Euler-Bernoulli beam theory, Finite element model, Physics, Resonance, Simulation results
Proceedings Papers

Highly Tunable Electrothermally Actuated Arch Resonator

Amal Z. Hajjaj, Abdallah Ramini, Nouha Alcheikh, Mohammad I. Younis
Proc. ASME. IDETC-CIE2016, Volume 6: 12th International Conference on Multibody Systems, Nonlinear Dynamics, and Control, V006T09A018, August 21–24, 2016
Paper No: DETC2016-59898
DOI: https://doi.org/10.1115/DETC2016-59898
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Topics: Arches, Resonance, Microelectromechanical systems, Stress, Compressive stress, Euler-Bernoulli beam theory, Finite element model, Physics, Silicon, Thermal expansion