Dr. Sheng's areas of expertise are in dynamics, acoustics and tribology applied in automotive systems, data storage systems, and mechanical/structural systems in arctic region.
Dr. Sheng's research interests include:
Dynamics, acoustics & tribology
Acoustics applied in automotive systems
Dynamics & tribology applied in data storage and automotive systems
Mechtronics condition monitoring and diagnosis
Dynamics and acoustics applied in the energy systems, infrastructures and environments in cold regions.
Set-up used to investigate the friction and sound of automotive belt transmission system
Courses:
ME 408 - Mechanical Vibrations (Fall 08,09)
ME 493/693 - Modeling and Simulations in Engineering (optimization portion, Fall 08)
ME 487 - Design Project (senior design, Spring 09)
ME 609 – Advanced Vibrations (Fall 09)
Education:
Ph.D. in Civil and Environmental Engineering, Nanyang Technological University, Singapore , 1997
M. S. in Mechanical Engineering, Shanghai Jiaotong University, China, 1987
B. S. in Mechanical Engineering, Shanghai Jiaotong University, China, 1984
Selected Publications:
Selected papers (from over 60 referred journal papers & books).
Sheng G., Brown L., Otramba J., Pang J., Dukkipati, R.V., Qatu, M. Chirp, squeal and dynamic instability of misaligned V-ribbed belts in automotive accessory belt drive systems, Int. J. Vehicle Noise and Vibration,3,1, 88-105, 2007.
Sheng G., Dukkipati R.V. Nonlinear dynamics of sub-10 nm flying height air bearing slider in modern hard disk recording system, Mechanism and Machine Theory, 41, 1230-1242, 2006.
Sheng G., Miller L., Liu K., Otramba J., Pang J., Dukkipati, R.V., Qatu, M. The mechanism of wet belt friction and friction-induced dynamic instability and noise in automotive accessory belt drive system, Int. J. Vehicle Noise and Vibration, 2,3, 249-265, 2006.
Sheng G., Brown L., Liu K. Otramba J., Pang J., Dukkipati, R.V., Qatu, M. A new mechanism of dynamic instability and slip squeal in automotive accessory belt drive system. Int. J. Vehicle Noise and Vibration, 2,4, 305-316, 2006.
Sheng G., Liu K., Otramba J., Pang J., Dukkipati R.V., Qatu,M. Model and experimental investigation of belt noise in automotive accessory belt drive, International Journal of Vehicle Noise and Vibration, 1, (1/2), 68-82, 2004.
Sheng G., Zhang J.An experimental and theoretical investigation of disk damage caused by head-disk impact in loading process, IEEE Transactions on Magnetics, 37, 1863-1865, 2001.
Sheng G., Yan L., Liu B., Sridhar U., Hua W., Miao Y., Xu B. Design and analysis of MEMS-based slider-suspensions for high performance magnetic recording system, Journal of Micromechanics & Microengineering, 10, 64-71, 2000.
Sheng G., Liu B., Hua W.An nonlinear dynamics theory for modeling slider-air bearings in hard disk drives, Journal of Applied Physics, 87(9), 6173-6175, 2000.
Sheng G., Liu B. A theoretical model of slider-disk interaction and acoustic emission sensing process for studying interface phenomena and estimating unknown parameters. Tribology Letters, 6, 233-239, 1999.
Sheng G., Liu B., Hua W.A Micro-machined dual slider-suspension for near-contact and contact recording, IEEE Trans. Mag., 35(5), 2472-2474, 1999.
Sheng G., Liu B. Generalized high-order accurate Newmark method for head-disk interface dynamics in magnetic recording technology, Finite Elements in Analysis and Design, 29, 87-103, 1998.
Sheng G., Fung T.C., Fan S.C.Parameterized formulations of Hamilton’s law for numerical solutions of dynamic problems: Part I & II. Global approximation, Computational Mechanics, 21(1), 441-460, 1998.
New Publications
Sheng G., Zheng, H., Qatu, M., Dukkipati, R. V., Modelling of friction-induced noise of timing belt, International Journal of Vehicle Noise and Vibration 4,4, 285 - 303, 2008.
Sheng G., He J.Z., Duan S.L., Disk roughness and defect monitoring for ultrahigh density computer hard disk drive, in Encyclopedia of Tribology, Springer, under publication, 2009.
Sheng G., Lee J.H., Friction-vibration interactions, in Encyclopedia of Tribology, Springer, under publication, 2009.
Awards and Honors:
Fellow of American Society of Mechanical Engineers, elected in fall 2008
Award of Evaluation of Patent Invention, Sony Corp., Singapore Research Lab, 2000.
1st Grade Awards of Excellent Book, The Ministry of Mechanical Industry of China,1996, for his co-authored book Mechanical Vibration System (published in 1991, with Hanmin Shi and Ya Wu).
