Journal Articles

Ruzziconi, L and Hajjej Ep Zemni, A (2023) Multiple Internal Resonance Couplings and Quasi-Periodicity Patterns in Hybrid-Shaped Micromachined Resonators, Chaos, Solitons and Fractals, 177, ISSN: 0960-0779. DOI: 10.1016/j.chaos.2023.114145.

Andreou, P, Hajjaj, A, Mohammad-Pour, M, Theodossiades, S (2023) Analytical multiphysics methodology to predict vibroacoustics in PMSMs combining tangential electromagnetic excitation and tooth modulation effects, IEEE Transactions on Transportation Electrification, ISSN: 2332-7782. DOI: 10.1109/TTE.2023.3325350.

Fang, Z, Theodossiades, S, Hajjaj, A (2023) Triple sensing scheme based on nonlinear coupled micromachined resonators, Nonlinear Dynamics, 111(24), pp.22185-22213, ISSN: 0924-090X. DOI: 10.1007/s11071-023-08674-6.

Fang, Z, Theodossiades, S, Ruzziconi, L, Hajjaj, A (2023) A multi-sensing scheme based on nonlinear coupled micromachined resonators, Nonlinear Dynamics, 111(9), pp.8021-8038, ISSN: 0924-090X. DOI: 10.1007/s11071-023-08294-0.

farokhi, H, Rocha, RT, Hajjej Ep Zemni, A, Younis, MI (Accepted for publication) Nonlinear Damping in Micromachined Bridge Resonators, Nonlinear Dynamics, ISSN: 0924-090X. DOI: 10.1007/s11071-022-07964-9.

Hajjaj, A, Ruzziconi, L, Alfosail, F, Theodossiades, S (2022) Combined internal resonances at crossover of slacked micromachined resonators, Nonlinear Dynamics, 110(3), pp.2033-2048, ISSN: 0924-090X. DOI: 10.1007/s11071-022-07764-1.

Hajjaj, A, Corrigan, K, Mohammadpour, M, Theodossiades, S (2022) On the stability analysis of gear pairs with tooth profile modification, Mechanism and Machine Theory, 174, 104888, ISSN: 0094-114X. DOI: 10.1016/j.mechmachtheory.2022.104888.

Hajjaj, A and Jaber, N (2021) Controlling resonator nonlinearities and modes through geometry optimization, Micromachines, 12(11), 1381, DOI: 10.3390/mi12111381.

Hajjaj, A, Ortiz, J, Abdelkefi, A (2021) Nonlinear size-dependent modeling and dynamics of nanocrystalline arc resonators, International Journal of Mechanics and Materials in Design, 18(1), pp.105-123, ISSN: 1569-1713. DOI: 10.1007/s10999-021-09574-6.

Hajjej, AZ, Jaber, N, Alcheikh, N, Younis, MI (2019) A Resonant Gas Sensor Based on Multimode Excitation of a Buckled Microbeam, IEEE Sensors Journal, 20(4), pp.1778-1785, ISSN: 1530-437X. DOI: 10.1109/jsen.2019.2950495.

Hajjej, A, Jaber, N, Ilyas, S, Alfosail, FK, Younis, MI (2019) Linear and nonlinear dynamics of micro and nano-resonators: Review of recent advances, International Journal of Non-Linear Mechanics, 119, pp.103328-103328, ISSN: 0020-7462. DOI: 10.1016/j.ijnonlinmec.2019.103328.

Alcheikh, N, Hajjej, AZ, Younis, MI (2019) Highly sensitive and wide-range resonant pressure sensor based on the veering phenomenon, Sensors and Actuators A: Physical, 300, pp.111652-111652, ISSN: 0924-4247. DOI: 10.1016/j.sna.2019.111652.

Hajjej, AZ, Alfosail, FK, Jaber, N, Ilyas, S, Younis, MI (2019) Theoretical and experimental investigations of the crossover phenomenon in micromachined arch resonator: part II—simultaneous 1:1 and 2:1 internal resonances, Nonlinear Dynamics, 99(1), pp.407-432, ISSN: 0924-090X. DOI: 10.1007/s11071-019-05242-9.

Hajjej, AZ, Alfosail, FK, Jaber, N, Ilyas, S, Younis, MI (2019) Theoretical and experimental investigations of the crossover phenomenon in micromachined arch resonator: part I—linear problem, Nonlinear Dynamics, 99(1), pp.393-405, ISSN: 0924-090X. DOI: 10.1007/s11071-019-05251-8.

Hajjej, AZ, Chappanda, KN, Batra, NM, Hafiz, MAA, Costa, PMFJ, Younis, MI (2019) Miniature pressure sensor based on suspended MWCNT, Sensors and Actuators A: Physical, 292, pp.11-16, ISSN: 0924-4247. DOI: 10.1016/j.sna.2019.03.036.

Alfosail, FK, Hajjaj, AZ, Younis, MI (2019) Theoretical and Experimental Investigation of Two-to-One Internal Resonance in MEMS Arch Resonators, Journal of Computational and Nonlinear Dynamics, 14(1), ISSN: 1555-1415. DOI: 10.1115/1.4041771.

Hajjaj, AZ, Alfosail, FK, Younis, MI (2018) Two-to-one internal resonance of MEMS arch resonators, International Journal of Non-Linear Mechanics, 107, pp.64-72, ISSN: 0020-7462. DOI: 10.1016/j.ijnonlinmec.2018.09.014.

Hajjaj, AZ, Jaber, N, Hafiz, MAA, Ilyas, S, Younis, MI (2018) Multiple internal resonances in MEMS arch resonators, Physics Letters A, 382(47), pp.3393-3398, ISSN: 0375-9601. DOI: 10.1016/j.physleta.2018.09.033.

Hajjaj, AZ, Alcheikh, N, Hafiz, MAA, Ilyas, S, Younis, MI (2017) A scalable pressure sensor based on an electrothermally and electrostatically operated resonator, Applied Physics Letters, 111(22), pp.223503-223503, ISSN: 0003-6951. DOI: 10.1063/1.5003563.

Kazmi, SNR, Hajjaj, AZ, Hafiz, MAA, Costa, PMFJ, Younis, MI (2017) Highly Tunable Electrostatic Nanomechanical Resonators, IEEE Transactions on Nanotechnology, 17(1), pp.113-121, ISSN: 1536-125X. DOI: 10.1109/tnano.2017.2777519.

Hajjaj, AZ, Alcheikh, N, Younis, MI (2017) The static and dynamic behavior of MEMS arch resonators near veering and the impact of initial shapes, International Journal of Non-Linear Mechanics, 95, pp.277-286, ISSN: 0020-7462. DOI: 10.1016/j.ijnonlinmec.2017.07.002.

Hafiz, MAA, Kosuru, L, Hajjaj, AZ, Younis, MI (2017) Highly Tunable Narrow Bandpass MEMS Filter, IEEE Transactions on Electron Devices, 64(8), pp.3392-3398, ISSN: 0018-9383. DOI: 10.1109/ted.2017.2716949.

Hajjaj, AZ, Ramini, A, Alcheikh, N, Younis, MI (2017) Electrothermally Tunable Arch Resonator, Journal of Microelectromechanical Systems, 26(4), pp.837-845, ISSN: 1057-7157. DOI: 10.1109/jmems.2017.2676006.

Alcheikh, N, Hajjaj, AZ, Jaber, N, Younis, MI (2017) Electrothermally actuated tunable clamped-guided resonant microbeams, Mechanical Systems and Signal Processing, 98, pp.1069-1076, ISSN: 0888-3270. DOI: 10.1016/j.ymssp.2017.05.049.

Hajjaj, A, Hafiz, MA, Younis, MI (2017) Mode coupling and nonlinear resonances of MEMS arch resonators for bandpass filters, Scientific Reports, 7(1), 41820, ISSN: 2045-2322. DOI: 10.1038/srep41820.

Ramini, AH, Hajjaj, AZ, Younis, MI (2016) Tunable Resonators for Nonlinear Modal Interactions, Scientific Reports, 6(1), 34717, DOI: 10.1038/srep34717.

Hajjej, AZ, Alcheikh, N, Ramini, A, Al Hafiz, MA, Younis, MI (2016) Highly Tunable Electrothermally and Electrostatically Actuated Resonators, IEEE Journal of Microelectromechanical Systems, 25(3), pp.440-449, ISSN: 1057-7157. DOI: 10.1109/jmems.2016.2542338.

Hajjaj, AZ, Ramini, A, Younis, MI (2015) Experimental and analytical study of highly tunable electrostatically actuated resonant beams, Journal of Micromechanics and Microengineering, 25(12), pp.125015-125015, ISSN: 0960-1317. DOI: 10.1088/0960-1317/25/12/125015.

Conferences

Fang, Z, Theodossiades, S, Dejene, F, Hajjaj, A (2024) Dynamics of a piezoelectric MEMS gas sensor based on coupled micromachined resonators. In 2023 IEEE 22nd International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications (PowerMEMS); 2023 IEEE 22nd International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications (PowerMEMS), Abu Dhabi, United Arab Emirates,ISBN: 9798350344219. DOI: 10.1109/powermems59329.2023.10417633.

Fang, Z, Theodossiades, S, Jaber, N, Hajjaj, A (2023) Gas sensor based on nonlinear coupled AlN-piezoelectric micromachined resonators. In Proceedings of IEEE Sensors, Vienna, Austria,ISBN: 9798350303872. DOI: 10.1109/SENSORS56945.2023.10324875.

Andreou, P, Zemni, AHE, Mohammad-Pour, M, Theodossiades, S (2022) Analytical multiphysics model for NVH prediction of a high-speed Surface-Permanent Magnet Synchronous Machine. In 53rd Spanish Congress of Acoustics 2022; Proceedings of the Spanish Congress of Acoustics, Alicante, Spain.

Alcheikh, N, Hajjaj, AZ, Younis, MI (2019) Wide Range Highly Sensitive Pressure Sensor Based on Heated Micromachined Arch Beam. In ASME 2019 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, Volume 4: 24th Design for Manufacturing and the Life Cycle Conference; 13th International Conference on Micro- and Nanosystems. DOI: 10.1115/detc2019-97995.

Hajjaj, AZ, Jaber, N, Alcheikh, N, Younis, MI (2019) A Sensitive Resonant Gas Sensor Based on Multimode Excitation of a Buckled Beam. In ASME 2019 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, Volume 4: 24th Design for Manufacturing and the Life Cycle Conference; 13th International Conference on Micro- and Nanosystems. DOI: 10.1115/detc2019-98148.

Hajjaj, AZ, Jaber, N, Alcheikh, N, Younis, MI (2019) A Sensitive Resonant Gas Sensor Based on Multimode Excitation of a Buckled Beam. In 2019 20th International Conference on Solid-State Sensors, Actuators and Microsystems & Eurosensors XXXIII (TRANSDUCERS & EUROSENSORS XXXIII), 2019 20th International Conference on Solid-State Sensors, Actuators and Microsystems & Eurosensors XXXIII (TRANSDUCERS & EUROSENSORS XXXIII). DOI: 10.1109/transducers.2019.8808228.

Hajjaj, AZ, Alfosail, FK, Younis, MI (2018) Experimental and Theoretical Study of Two-to-One Internal Resonance of MEMS Resonators. In ASME 2018 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, Volume 6: 14th International Conference on Multibody Systems, Nonlinear Dynamics, and Control. DOI: 10.1115/detc2018-85539.

Hajjaj, AZ, Alcheikh, N, Younis, MI (2017) Effect of Initial Curvature on the Static and Dynamic Behavior of MEMS Resonators. In ASME 2017 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, Volume 6: 13th International Conference on Multibody Systems, Nonlinear Dynamics, and Control. DOI: 10.1115/detc2017-67791.

Kazmi, SNR, Hajjaj, AZ, Costa, PMFJ, Younis, MI (2017) Electrostatically Tunable Nanomechanical Shallow Arches. In ASME 2017 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, Volume 4: 22nd Design for Manufacturing and the Life Cycle Conference; 11th International Conference on Micro- and Nanosystems. DOI: 10.1115/detc2017-67845.

Hajjaj, AZ, Hafiz, MAA, Alcheikh, N, Younis, MI (2017) Scalable Pressure Sensor Based on Electrothermally Operated Resonator. In ASME 2017 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, Volume 4: 22nd Design for Manufacturing and the Life Cycle Conference; 11th International Conference on Micro- and Nanosystems. DOI: 10.1115/detc2017-67785.

Kazmi, SNR, Hajjaj, AZ, Costa, PMFJ, Younis, MI (2017) Highly tunable NEMS shallow arches. In 2017 IEEE 17th International Conference on Nanotechnology (IEEE-NANO), pp.838-843, DOI: 10.1109/nano.2017.8117332.

Hajjaj, AZ, Al Hafiz, MA, Younis, MI (2016) Tunable Bandpass Filter Based on Electrothermally and Electrostatically Actuated MEMS Arch Resonator. In ASME 2016 International Mechanical Engineering Congress and Exposition, Volume 10: Micro- and Nano-Systems Engineering and Packaging. DOI: 10.1115/imece2016-66700.

Ramini, A, Hajjaj, A, Younis, MI (2016) Experimental Investigation of 2:1 and 3:1 Internal Resonances in Nonlinear MEMS Arch Resonators. In ASME 2016 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, Volume 6: 12th International Conference on Multibody Systems, Nonlinear Dynamics, and Control. DOI: 10.1115/detc2016-59538.

Hajjaj, AZ, Alcheikh, N, Ramini, A, Al Hafiz, MA, Younis, MI (2016) Electrothermally Tunable Bridge Resonator. In ASME 2016 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, Volume 4: 21st Design for Manufacturing and the Life Cycle Conference; 10th International Conference on Micro- and Nanosystems. DOI: 10.1115/detc2016-59892.

Hajjaj, AZ, Ramini, A, Alcheikh, N, Younis, MI (2016) Highly Tunable Electrothermally Actuated Arch Resonator. In ASME 2016 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, Volume 6: 12th International Conference on Multibody Systems, Nonlinear Dynamics, and Control. DOI: 10.1115/detc2016-59898.