Publications
Text Box: I-Journal Papers Alsaleem, F. M. and Younis, M. I, “Stability Analysis of Electrostatically Actuated Resonators with Delayed Feedback Controller,” Journal of Computational and Nonlinear Dynamics, under review. Yagubizade, H. and Younis, M. I., “The effect of squeeze-film damping on suppressing the shock response of MEMS,” Sensors and Actuators A., under review. Ouakad, H. and Younis, M. I, “The Dynamic Behavior of MEMS Arch Resonators Actuated Electrically,” International Journal of Nonlinear Mechanics, accepted. Younis, M. I, Ouakad, H., Alsaleem, F. M., Miles, R., and Cui, W., “Nonlinear Dynamics of MEMS Arches Under Harmonic Electrostatic Actuation,” J. Microelectromech. Syst, accepted. Alsaleem, F. M., Younis, M. I, and Laura Ruzziconi, “An Experimental and Theoretical Investigation of Dynamic Pull-in in MEMS Resonators Actuated Electrostatically,” J. Microelectromech. Syst, accepted. Ibrahim, M., Younis, M. I, and Alsaleem, F. M., “An Investigation of the Effects of MEMS Nonlinearities on the Shock Spectrum of Microstructures,” International Journal of Nonlinear Mechanics, accepted. Alsaleem, F. M. and Younis, M. I, “Stabilization of electrostatic MEMS resonators using delayed feedback controller,” Smart Materials and Structures, Vol. 19, January, 11 pages, # 0964-1726/10/000000, 2010. Ibrahim, M. and Younis, M. I., “The dynamic response of electrostatically driven resonators under mechanical shock,” J. Micromech. Microeng., Vol. 20, #025006, 9 pages, 2010. H. Ouakad and Younis, M. I, “Static and Dynamic Behaviors of Electrically-Actuated Carbon Nanotube Resonator”, ASME Journal of Computational and Nonlinear Dynamics, JANUARY, Vol. 5, # 011009, 13 pages, 2010. F. Alsaleem, M. I. Younis, H. Ouakad, “On the Nonlinear Resonances and Dynamic Pull-in of Electrostatically Actuated Resonators,” J. Micromech. Microeng., Vol., 19, Article ID 045013, 14 pages, 2009. H. Ouakad and Younis, M. I, “Modeling and Simulations of Collapse Instabilities of Microbeams due to Capillary Forces,” Mathematical Problems in Engineering, Volume 2009, Article ID 871902, 16 pages, doi:10.1155/2009/871902, 2009. Younis, M. I., and Al-saleem, F. M., “Exploration of New Concepts for Mass Detection in Electrostatically-Actuated Structures Based on Nonlinear Phenomena,” J. Comput. Nonlinear Dynam., Vol. 4, Issue 2, DOI:10.1115/1.3079785, 15 pages, 2009. Al-saleem, F. M., Younis, M. I, and Ibrahim, M., “A study for the effect of the PCB motion and electrostatic force on the dynamics of MEMS devices under mechanical shock,” J. Microelectromech. Syst, Vol. 18, Issue 3, pp. 597-609, 2009. Al Saleem, F., Younis, M. I., and Miles, R., “An investigation for the effects of packaging on the response of a MEMS device under mechanical shock loads,” ASME Journal of Electronics Packaging, Vol. 130, DOI: 10.1115/1.2957319, 2008. Jordy, D, and Younis, M. I., “Characterization of the Dynamical Response of a Micromachined G-Sensor to Mechanical Shock Loading under the Influence of Squeeze-Film Damping,” Journal of Dynamic Systems, Measurement, and Control, Vol. 130, DOI: 10.1115/1.2936849, 2008. Younis, M. I., Al-saleem, F. M., Miles, R., and Su Q., “Characterization for the performance of capacitive switches activated by mechanical shock,” J. Micromech. Microeng., Vol. 17, pp. 1360-1370, 2007. Younis, M. I., Jordy, D., and Pitarresi, J., “Computationally Efficient Approaches to Characterize the Dynamic Response of Microstructures under Mechanical Shock,” J. Microelectromech. Syst, Vol. 16, pp. 628-638, 2007. Younis, M. I., Al Saleem, F., and Jordy, D., “The Response of Clamped-Clamped Microbeams under Mechanical Shock,” International Journal of Nonlinear Mechanics, Vol. 42, pp. 643-657, 2007. Younis, M. I. and Nayfeh, A. H., “Simulation of squeeze-film damping of microplates actuated by large electrostatic load,” ASME Journal of Computational and Nonlinear Dynamics, Vol. 2, July, 2007. Nayfeh, A. H., Younis, M. I., and Abdel-Rahman, E. M., “Dynamic Pull-in Phenomenon in MEMS Resonantors,” Nonl. Dyn., Vol. 48, pp. 153-163, 2007. Younis, M. I., Miles R., and Jordy D., “Investigation of the response of microstructures under the combined effect of mechanical shock and electrostatic forces,” J. Micromech. Microeng., Vol. 16, pp. 2463-2474, 2006. Nayfeh, A. H. and Younis, M. I. “Dynamics of MEMS resonators under superharmonic and subharmonic excitations,” J. Micromech. Microeng., Vol. 15, pp. 1840--1847, 2005. Nayfeh, A. H., Younis, M. I., and Abdel-Rahman, E. M., “Reduced-order models for MEMS applications,” Nonl. Dyn, Vol. 41, pp. 211--236, 2005. Abdel-Rahman, E. M., Younis, M. I., and Nayfeh, A. H., “Finite-amplitude motions of resonators and their stability,” Journal of Computational and Theoretical Nanoscience, Vol. 4, pp. 385--391, 2004. Nayfeh, A. H. and Younis, M. I. “Modeling and simulations of thermoelastic damping in microplates,” J. Micromech. Microeng, Vo. 14, pp. 1711--1717, 2004. Nayfeh, A. H. and Younis, M. I. “A new approach to the modeling and simulation of flexible microstructures under the effect of squeeze-film damping,” J. Micromech. Microeng., Vo. 14, pp. 170--181, 2004. Younis, M. I., Abdel-Rahman, E. M., and Nayfeh, A. H., “A reduced-order model for electrically actuated microbeam-based MEMS,’’ J. Microelectromech. Syst., Vol. 12, pp. 672--680, 2003. Younis, M. I. and Nayfeh, A. H., “A study of the nonlinear response of a resonant microbeam to an electric actuation,” Nonl. Dyn., Vol. 31, pp. 91--117, 2003. Abdel-Rahman, E. M., Younis, M. I., and Nayfeh, A. H., “Characterization of the mechanical behavior of an electrically actuated microbeam,” J. Micromech. Microeng., Vol. 12, pp. 759--766, 2002. II-Conference Papers Younis, M. I, “Nonlinear Dynamic Issues of Electrostatic MEMS,” 9th Brazilian Conference on Dynamics, Control and Their Applications’- DINCON 2010, submitted. H. Ouakad and M. I. Younis, “The Natural Frequencies of Slacked Carbon Nanotube NEMS Resonators,” In Proc. Of The ASME 2010 International Design Engineering Technical Conferences (IDETC), Montreal, Quebec, Canada, August, 2010, submitted. A. Bataineh, H. Ouakad and M. I. Younis, “Collapse of Microbeams due to the Combined Effect of Electrostatic and Capillary Forces,” In Proc. Of The ASME 2010 International Design Engineering Technical Conferences (IDETC), Montreal, Quebec, Canada, August, 2010, submitted. Alsaleem, F. M. and Younis, M. I, “Stability Analysis of Electrostatically Actuated Resonators with Delayed Feedback Controller,” In Proc. Of The ASME 2010 International Design Engineering Technical Conferences (IDETC), Montreal, Quebec, Canada, August, 2010, submitted. S. Kharabsheh and Younis, M. I, “Nonlinear Dynamics of MEMS Arches” In Proc. Of The ASME 2010 International Design Engineering Technical Conferences (IDETC), Montreal, Quebec, Canada, August, 2010, submitted. H. Ouakad, F. A. S., M. I. Younis, T. Levo, and J. Pitarresi, “Response of an Electrostatically Actuated Microbeam to Drop-Table Test,” IEEE Thermal, Mechanical & Multiphysics Simulation and Experiments in Micro/Nano-Electronics and Microsystems Conference, Eurosim 2010, Bordeaux, France, April, 26-, 2010, accepted. Abdallah H Ramini , Mohammad I Younis, Ronald Miles, and James Pitarresi , “Modeling the effects of PCB motion on the response of microstructures under mechanical shock,” IEEE Thermal, Mechanical & Multiphysics Simulation and Experiments in Micro/Nano-Electronics and Microsystems Conference, Eurosim 2010, Bordeaux, France, April, 26-, 2010, accepted. Ibrahim, M. and Younis, M. I “Reliability of Electrostatically Driven Resonant Sensors Under Mechanical Shock,” Proceedings of IMECE2009 2009 ASME International Mechanical Engineering Congress and Exposition, November 13-19, Lake Buena Vista, Florida, USA, paper #IMECE2009-12366. H. Yagubizade, M. Younis, G. Rezazadeh “The effect of squeeze-film damping on suppressing the shock response of MEMS,” Proceedings of IMECE2009 2009 ASME International Mechanical Engineering Congress and Exposition, November 13-19, Lake Buena Vista, Florida, USA, paper #IMECE2009- 12433. Alsaleem, F. M. and Younis, M. I, “STABILIZING THE DYNAMICS OF ELECTROSTATIC MEMS RESONATORS USING DELAYED FEEDBACK CONTROLLER,” Proceedings of the ASME 2009 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference IDETC/CIE 2009, August 30 - September 2, 2009, San Diego, California, paper #DETC2009- 86903. Alsaleem, F. M. and Younis, M. I, “AN EXPERIMENTAL AND THEORETICAL INVESTIGATION OF DYNAMIC PULL-IN IN MEMS DEVICES ACTUATED ELECTROSTATICALLY,” Proceedings of the ASME 2009 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference IDETC/CIE 2009, August 30 - September 2, 2009, San Diego, California, paper #DETC 2009- 86909. Ouakad, H., Younis, M. I, Alsaleem, F. M., Miles, R., and Cui, W., “THE STATIC AND DYNAMIC BEHAVIOR OF MEMS ARCHES UNDER ELECTROSTATIC ACTUATION,” Proceedings of the ASME 2009 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference IDETC/CIE 2009, August 30 - September 2, 2009, San Diego, California, paper # DETC2009-87024. Alsaleem, F. M. and Younis, M. I, “Controlling Dynamic Pull-in Escape in Electrostatic MEMS,” Proceeding of The 6th International Symposium on Mechatronics and its Applications (ISMA09), Sharjah, UAE, March, 2009. H. Ouakad and Younis, M. I, “The Static and Dynamic Behavior of MEMS Arches under Electrostatic Actuation,” Proceeding of The 6th International Symposium on Mechatronics and its Applications (ISMA09), Sharjah, UAE, March, 2009. Younis, M. I, Miles, R. , and Pitarresi, J., “The Effect of PCB Motion and Electrostatic Forces on the Response of MEMS Devices under Shock,” Proceeding of the 2009 NSF CMMI Engineering Research and Innovation Conference, Honolulu, Hawaii, June, 2009. Al-Saleem, F. M, Younis, M. I., and H. Ouakad “ Experimental and Theoretical Investigation of the Nonlinear Dynamics of an electrostatically-actuated device ,” 2008 ASME International Mechanical Engineering Congress and Exposition IMECE'08, Boston, MA, 2008, IMECE2008-67559. H. Ouakad and M. I. Younis, “ Static and Dynamic Behaviors of Electrically-Actuated Carbon Nanotube Resonator,” 2008 ASME International Mechanical Engineering Congress and Exposition IMECE'08, Boston, MA, 2008, IMECE2008-68974. H. Ouakad and M. I. Younis, “Modeling and Simulations of Collapse Instabilities of Microbeams due to Capillary Forces,” 2008 ASME International Mechanical Engineering Congress and Exposition IMECE'08, Boston, MA, 2008, IMECE2008-67502 .  Ibrahim, M. and Younis, M. I., “Enhancing The Sensitivity of a Resonant Accelerometer,” 2008 ASME International Mechanical Engineering Congress and Exposition IMECE'06, Boston, MA, 2008, IMECE2008-67544. Al-Saleem, F. M and Younis, M. I., “ On the utilization of the escape phenomenon to realize new mass detectors,” Proceedings of the ASME 2008 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference IDETC/CIE 2008, IDETC2008- 50122. Ibrahim, M. and Younis, M. I., “ An investigation for the nonlinear effects of squeeze film damping and electrostatic forces on the shock spectrum of a capacitive accelerometer,” Proceedings of the ASME 2008 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference IDETC/CIE 2008, IDETC2008- 50143. H. Ouakad and M. I. Younis “Modeling and simulation of a cantilever-paddle beam under the effect of capillary, shock, and electrostatic forces,” Proceedings of the ASME 2008 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference IDETC/CIE 2008, DETC2008-50134. Al-Saleem, F. M., Younis, M. I, and Ibrahim, M., " The effect of the PCB motion on the dynamic response of MEMS devices under mechanical shock loads,” Proceedings of the SEM XI International Congress & Exposition on Experimental and Applied Mechanics, Orlando, Florida June, 2008, paper#229. Younis, M. I. and Al-Saleem, F. M., “New Concepts of Mass Sensors Based on Nonlinear Dynamic Principles,” Proceedings of the SEM XI International Congress & Exposition on Experimental and Applied Mechanics, Orlando, Florida June, 2008, paper#227. Al-Saleem, F. M and Younis, M. I., “Theoretical and Experimental Investigation of Dynamic Instabilities in Electrostatic MEMS,” Proceedings of the SEM XI International Congress & Exposition on Experimental and Applied Mechanics, Orlando, Florida June, 2008, paper#231. Younis, M. I. and Arafat H., “Investigation of the Effect of Nonlinearities on the Response of Cantilever Microbeams under Mechanical Shock and Electrostatic Loading,” Proceedings of the SEM XI International Congress & Exposition on Experimental and Applied Mechanics, Orlando, Florida June, 2008, paper#230. H. Ouakad, H. Arafat, and M. I. Younis “The response of a cantilever microbeam with a plate attached to its tip to mechanical shock”, Proceeding of the 6th International Conference on Computation of Shell and Spatial Structures, Ithaca, NY, May, 2008. Younis, M. I. and Al-Saleem, F. M., “Switch Triggered by Mass Threshold”, Proceeding of the 6th International Conference on Computation of Shell and Spatial Structures, Ithaca, NY, May, 2008. Younis, M. I. and Al-Saleem, F. M., “Nonlinear Dynamics of MEMS Resonators and its Applications for Mass Sensing,” Dynamics and Control Workshop, Amman, Jordan, March 27, 2008. Al-Saleem, F. M., Younis, M. I., Miles, R., and Su Q., “Experimental and Theoretical Investigation of New Capacitive Switches Activated by Mechanical Shock and Acceleration”, in Proc. of the 21th Biennial Conference on Mechanical Vibration and Noise (VIB), September 4-7, 2007, Las Vegas, Nevada, DETC2007-35417. Jordy, D. and Younis, M. I., “Characterization of the Dynamical Response of a Micromachined G-Sensor to Mechanical Shock Loading”, in Proc. of the 21th Biennial Conference on Mechanical Vibration and Noise (VIB), September 4-7, 2007, Las Vegas, Nevada, DETC2007-34843. Younis, M. I., “Investigation into the Reliability of Microstructures under Mechanical Shock,” US-Tunisia Workshop: Research and Educational Advances in Design and Fabrication of Micro-Electro-Mechanical Systems, Hammamet, Tunisia, December, 2006 (presentation). Younis, M. I., Pitarresi, J., and Jordy, D., “Analyzing microbeams dynamics under mechanical shock,” ,” in Proc. The Third International Conference on Advances in Mechanical Engineering and Mechanics (ICAMEM 2006), Hammamet, Tunisia, December, 2006, MEMS02. Alsaleem, F. and Younis, M. I., “An Investigation for the effect of packaging on the response of MEMS devices under shock loads,” in Proc. The Third International Conference on Advances in Mechanical Engineering and Mechanics (ICAMEM 2006), Hammamet, Tunisia, December, 2006, MEMS01. Younis, M. I., Jordy, D., and Pitarresi, J., “Computationally efficient approaches to simulate the dynamics of microbeams under mechanical shock,” 2006 ASME International Mechanical Engineering Congress and Exposition IMECE'06, Chicago, IL, 2006, IMECE2006-14115. Younis, M. I., Jordy, D., and Pitarresi, J., “ Dynamics of microbeams under mechanical shock,” eleventh conference in nonlinear vibrations, stability, and dynamic of structures, Blacksburg, VA, August, 2006 (Abstract and presentation). Younis, M. I. and Miles, R., “ Response of MEMS devices under shock loads,” Proceedings of the 2005 ASME International Mechanical Engineering Congress and Exposition IMECE'05, Orlando, FL, 2005, IMECE2005-81217. Younis, M. I., and Nayfeh, A. H., “Modeling squeeze-film damping of electrostatically actuated microplates undergoing large deflections,” in Proc. 20th Biennial Conference on Mechanical Vibration and Noise (VIB), Long Beach, CA, IDETC2005-84421, 2005. Nayfeh, A. H., Younis, M. I., and Abdel-Rahman, E. M., “Dynamic analysis of MEMS resonators under primary resonance excitation,” in Proc. 20th Biennial Conference on Mechanical Vibration and Noise (VIB), Long Beach, CA, IDETC2005-84146, 2005. Nayfeh, A. H. and Younis, M. I., “Subharmonic excitation for electrically actuated microbeams,” in Proc. 20th Biennial Conference on Mechanical Vibration and Noise (VIB), Long Beach, CA, DETC2005-84144, 2005. Nayfeh, A. H., Younis, M. I., and Abdel-Rahman, E. M., “Reduced-order modeling of MEMS,” Third MIT conference on computational fluid and solid mechanics, Cambridge, MA, July 14-17, pp. 394-400, 2005. Younis, M. I., Abdel-Rahman, E. M., and Nayfeh, A. H., “Global dynamics of MEMS resonators under superharmonic excitation,” the International Conference on MEMS, NANO, and Smart Systems, Banff, Canada (ICMENS), August 2004, pp. 694-699. Nayfeh, A. H., Younis, M. I., and Abdel-Rahman, E. M., “Dynamic Pull-in Phenomenon in MEMS Resonant Sensors and RF Switches,” Tenth conference in nonlinear vibrations, stability, and dynamic of structures, Blacksburg, VA, July, 2004 (Presentation). Nayfeh, A. H. and Younis, M. I. “A model for thermoelastic damping in microplates,” 2004 Nanotechnology NanoTech 2004: in Proc. the 7th International Conference on Modeling and Simulation of Microsystems, Boston, March 2004, pp. 255 – 258. Younis, M. I. and Nayfeh, A. H. “Microplates modeling under a coupled structural-fluidic-electrostatic forces,” NanoTech 2004: in Proc. the 7th International Conference on Modeling and Simulation of Microsystems, Boston, March 2004, pp. 251 – 254. Younis, M. I., Abdel-Rahman, E. M., and Nayfeh, A. H., “Dynamic simulations of a novel RF MEMS switch,” NanoTech 2004: in Proc. the 7th International Conference on Modeling and Simulation of Microsystems, Boston, March 2004, pp. 287-290. Abdel-Rahman, E. M., Younis, M. I., and Nayfeh, A. H., “A nonlinear reduced-order model for electrostatic MEMS,” in Proc. 19th Biennial Conference on Mechanical Vibration and Noise (VIB), Chicago, IL, 2003, paper # DETC2003/VIB-48517. Abdel-Rahman, E. M., Nayfeh, A. H., and Younis, M. I., “Dynamics of an electrically actuated resonant microsensor,” in Proc. International Conference on MEMS, NANO and Smart Systems (ICMENS), Banff, Canada, pp. 188 -196, 2003. Younis, M. I., Abdel-Rahman, E. M., and Nayfeh, A. H., “A reduced-order model for electrically actuated resonators and microswitches,” Ninth conference in nonlinear vibrations, stability, and dynamic of structures, Blacksburg, VA, July, 2002 (Abstract and presentation). Younis, M. I., Abdel-Rahman, E. M., and Nayfeh, A. H., “Static and dynamic behavior of an electrically excited resonant microbeam,’’ in Proc. 43rd AIAA Structures, Structural Dynamics, and Materials Conference, Denver, CO, AIAA Paper # 2002-1305, 2002. III-Patent Younis, M. I., “A Smart MEMS switch triggered by shock and acceleration,” US patent 7493815, February 2009. Younis, M. I., “A Reliable Switch that is Triggered by the Detection of a Specific Gas or Substance,” US patent application filed, application # 60/893342, filed on March 2008.

The MEMS and NEMS

 Characterization  and Motion Lab