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Dr. Norman M. Wereley

Dr. Norman M. Wereley
Professor, Techno-Sciences Inc. Faculty Fellow/ Director, Composites Research Laboratory
Room 3180 Martin Hall
wereley@umd.edu | 301-405-1927

Research in Active, semi-active and passive vibration control, as well as adaptive crashworthiness systems, for helicopters and automobiles. Magnetorheological energy absorbers and fluids. Smart pneumatic systems.

Education
Ph.D., Massachusetts Institute of Technology (1990)
M.S., Massachusetts Institute of Technology (1987)
B.Eng., McGill University (1982)

Publications

Chapters in Books

[1]  A.H. von Flotow and N.M. Wereley (1990). “Insights and Approximations in the Dynamic Analysis of Spacecraft Tethers.” Chap. 25, Mechanics and Control of Flexible Structures, J.L. Junkins, Editor, AIAA, pp. 678–696.

[2]  T.F. Zahrah, N.M. Wereley, F.H. Charron, and J.R. Mills (1993). “Hot Isostatic Pressing Using the Intelligent Processing of Materials Approach.” Hot Isostatic Pressing 1993, Eds. L. Delaey and H. Tas, Elsevier Publishers. pp. 109–116.

[3}  C.B. Smith and N.M. Wereley (1997). “Composite Rotorcraft Flexbeams With Viscoelastic Damping Layers for Aeromechanical Stability Augmentation.” M3DIII: Mechanics and Mechanisms of Material Damping, American Society of Testing and Materials, ASTM STP 1304, A. Wolfenden and V.K. Kinra, Eds., American Society for Testing and Materials, 1997, pp. 62–77.

[4]  G.M. Kamath and N.M. Wereley (1997). “Modeling the Damping Mechanism in Electro-Rheological Fluid Based Dampers.” M3DIII: Mechanics and Mechanisms of Material Damping, American Society of Testing and Materials, ASTM STP 1304, A. Wolfenden and V.K. Kinra, Eds., American Society for Testing and Materials, 1997, pp. 331-348.

[5]  N.M. Wereley, R. Snyder, R. Krishnan, and T. Sieg (2001). "Helicopter Damping.” Encyclopedia of Vibration. Editors: S.G. Braun, D.J. Ewins and S.S. Rao, Academic Press, London, UK, Volume 2, pp. 629-642.

[6]  D.-C. Chang, G. Wang, and N.M. Wereley (2006). “Mathematical Analysis of Fly Fishing Rod Static and Dynamic Response.” Proceedings of the Conference on Differential and Difference Equations and Applications. Chapter 28. At Press.

Patents

[1]   Peter C. Chen and Norman M. Wereley (2003). “Magnetorheological Damper and Energy Dissipation Method.” U.S. Patent 6,694,856. July 2003.

In Journals

[1]   D. Guitton, R.E. Kearney, N.M. Wereley, and B.W. Peterson (1986). “Visual, Vestibular, and Voluntary Contributions to Human Head Stabilization.” Experimental Brain Research, Vol. 64, No. 1, pp. 59–69.

[2]   D. Cleveland, L.J. O’Brien, and N.M. Wereley (1986). “An Automated Aid for Isolating Defects in the Heat Exchanger Tubing Of Nuclear Steam Generators.” Instrument Society of America Transactions, Vol. 25, No. 3, pp. 61–72.

[3]   B.K. Walker, N.M. Wereley, R.H. Luppold and E. Gai (1989). “Effects of Redundancy Management on Reliability Modeling.” IEEE Transactions on Reliability, Vol. R38, No. 4, pp. 475–482.

[4]   N.M. Wereley and B.K. Walker (1990). “Approximate Evaluation of Semi-Markov Chain Reliability Models.” Reliability Engineering and System Safety, Vol. 28, No. 2, pp. 133–164.

[5]   S.R. Hall and N.M. Wereley (1993). “Performance of Higher Harmonic Control Algorithms for Helicopter Vibration Reduction.” Journal of Guidance, Control and Dynamics, Vol. 16, No. 4, pp. 794–797.

[6]   N.M. Wereley, T.F. Zahrah, and F.H. Charron (1993). “Intelligent Control of Consolidation and Solidification Processes.” J. Materials Engineering and Performance. Vol. 2, No. 5, pp. 671–682.

[7]   G.M. Kamath, M.K. Hurt and N.M. Wereley (1996). “Analysis and Testing of Bingham Plastic Behavior in Semi-Active Electrorheological Fluid Dampers.” Smart Materials and Structures. Vol. 5, No. 5, pp. 576–590

[8]   C.B. Smith and N.M. Wereley (1996). “Transient Analysis for Damping Identification in Rotating Composite Beams With Integral Damping Layers.” Smart Materials and Structures. Vol. 5, No. 5, pp. 540–550.

[9]   G.M. Kamath* and N.M. Wereley (1997). “Nonlinear Viscoelastic Plastic Model for Electrorheological Fluids.” Smart Materials and Structures. Vol. 6, No. 3, pp. 351–359.

[10]  G.M. Kamath and N.M. Wereley (1997). “Nonlinear Viscoelastic-Plastic Mechanisms-Based Model of an Electrorheological Damper.” AIAA Journal of Guidance, Control and Dynamics. Vol. 20, No. 6, November-December, pp. 1125–1132.

[11]  N.M. Wereley and G.M. Kamath (1997). “Bringing Relevance to Freshman Aerospace Engineering: Demonstration of Model Scale Comanche Helicopter Lag Mode Damper.” International Journal of Engineering Education. Vol. 13, No. 5, pp. 369–375.

[12]  N.M. Wereley and Li Pang (1998). “Nondimensional Analysis of Semi-Active Electrorheological and Magnetorheological Dampers Using Approximate Parallel Plate Models.” Smart Materials and Structures. Vol. 7, No. 5, pp. 732–743.

[13]  N.M. Wereley, Li Pang, and G.M. Kamath* (1998). “Idealized Hysteresis Modeling of Electrorheological and Magnetorheological Dampers.” Journal of Intelligent Material Systems and Structures. Vol. 9, No. 8, August, pp. 642–649.

[14]   J. Lindler and N.M. Wereley (1999). “Analysis and Testing of Electrorheological Bypass Dampers.” Journal of Intelligent Material Systems and Structures. Vol. 10, No. 5, May, pp. 363-376.

[15]   G.M. Kamath, N.M. Wereley, and M.R. Jolly (1999). “Characterization of magnetorheological helicopter lag dampers.” Journal of the American Helicopter Society. Vol. 44, Number 3, July, pp. 234–248.

[16]   N.M. Wereley, G.M. Kamath, V. Madhavan* (1999). “Hysteresis modeling of semi-active magnetorheological helicopter lag dampers.” Journal of Intelligent Material Systems and Structures. Vol. 10, No. 8, August, 1999, pp. 624–633.

[17]   G. Hiemenz and N.M. Wereley (1999). “Seismic Response of Civil Structures Utilizing Semi-active MR and ER Damping Systems.” Journal of Intelligent Material Systems and Structures. Vol. 10, No. 8, August, 1999, pp. 646–656.

[18]   J. Lindler and N.M. Wereley (1999). “Double Adjustable Shock Absorbers Using Electrorheological Fluids.” Journal of Intelligent Material Systems and Structures. Vol. 10, No. 8, August, 1999, pp. 652–657.

[19]   D.Y. Lee and N.M. Wereley (1999). “Quasi-steady Herschel-Bulkley Analysis of Electro- and Magneto-rheological Flow Mode Dampers.” Journal of Intelligent Material Systems and Structures.Vol. 10, No. 10, September, pp. 761–769.

[20]   C.B. Smith and N.M. Wereley (1999). “Nonlinear damping identification from transient data.” AIAA Journal. Vol. 37, No. 12, December, pp. 1625-1632.

[21]   J. Crassidis, A. Baz, and N.M. Wereley (2000). “H∞ control of active constrained layer damping.” Journal of Vibration and Control. Vol. 6, No. 1, January, pp. 113-136.

[22]   G. Wang, S. Veeramani, and N.M. Wereley (2000). “Analysis of Sandwich Plates with Isotropic Face Plates and Viscoelastic Cores.” ASME Journal of Vibration and Acoustics, Vol. 122, No. 3, July, pp. 305-312.

[23]   R. Snyder, G.M. Kamath, and N.M. Wereley (2001). “Characterization and Analysis of Magnetorheological Damper Behavior Under Sinusoidal Loading.” AIAA Journal, Vol. 39, No. 7, July 2001, pp. 1240-1253.

2002
[24]   G. Wang and N.M. Wereley (2002). “Free In-Plane Vibration of Plates.” AIAA Journal. Volume 40, Number 5, May, pp. 953-959.

[25]   G. Wang and N.M. Wereley (2002). “Spectral Finite Element Analysis of Sandwich Beams with Passive Constrained layer Damping.” ASME Journal of Vibration and Acoustics. Volume 124, Number 3, July, pp. 376-386.

[26]    D.-C. Chang, G. Wang, and N.M. Wereley (2002). “A generalized Kantorovich method and its application to free in-plane plate vibration problem.” International Journal of Applicable Analysis. Volume 80, Number 3, pp. 493-523.

[27]    N. Rosenfeld, N.M. Wereley, R. Radhakrishnan and T.S. Sudarshan (2002). “Behavior of Magnetorheological Fluids Utilizing Nanopowder Iron,” International Journal of Modern Physics Part B. Volume 16, Numbers 17-18, pp. 2392-2398.

[28]    Y.-T. Choi and N.M. Wereley (2002). “Comparative Analysis of the Time Response of Electrorheological and Magnetorheological Dampers Using Nondimensional Parameters.” Journal of Intelligent Material Systems and Structures. Volume 13, No. 7/8, July-August, pp. 443-452

[29]     D.-Y. Lee, and Y.-T. Choi, and N.M. Wereley (2002). “Performance Analysis of Smart Impact Damper System Using Herschel-Bulkley Model.” Journal of Intelligent Material Systems and Structures. Volume 13, No. 7/8., July-August, pp. 525-532

[30]     G. Dimock, J.-H. Yoo, and N.M. Wereley (2002). “Bingham Biplastic Analysis of ER and MR Dampers.” Journal of Intelligent Material Systems and Structures. Volume 13, No.9, September, pp. 549-560.

[31]     L. Bitman, Y.-T. Choi, and N.M. Wereley (2002). “Electrorheological Damper Analysis Using an Eyring Constitutive Relationship.” Journal of Intelligent Material Systems and Structures. Volume 13, No.10, pp. 633-640.

[32]     J.-H. Yoo and Norman M. Wereley (2002). “Design of a High-Efficiency Magnetorheological Valve.” Journal of Intelligent Material Systems and Structures. Volume 13, No. 10, pp. 679-687.

2003
[33]    G. Hiemenz, Y.-T. Choi, and N.M. Wereley (2003). “Seismic Control of Civil Structures Utilizing Semi-Active MR Braces.” Journal of Computer-Aided Civil and Infrastructure Engineering. Vol. 18, No. 1, January, pp. 31–44.

[34]    J. Lindler and N.M. Wereley (2003). “Quasi-steady Bingham-Plastic Analysis of an Electrorheological Flow Mode Bypass Damper with Piston Bleed.” Smart Materials and Structures. Vol. 12, No.3, pp. 305-317.

[35]    G. Wang, N.M. Wereley, and D.-C. Chang (2003). “Analysis of plates with constrained layer damping using 2D plate modes.” AIAA Journal. Vol. 41, No. 5, pp. 924-932.

[36]    Y.-T. Choi and N.M. Wereley (2003). “Vibration Control of a Landing Gear System Featuring Electrorheological / Magnetorheological Fluids.” AIAA Journal of Aircraft. Vol. 40, No. 3, pp. 432-439.

[37]     D.-C. Chang, G. Wang, and N.M. Wereley (2003). “Analysis and Applications of the Extended Kantorovich-Krylov Method.” Applicable Analysis. Vol. 82, No. 7, July, pp. 713-740.

[38]     S.R. Hong, S.B. Choi, Y.-T. Choi and N.M. Wereley (2003). “Comparison of Damping Force Models for an Electrorheological Fluid Damper.” International Journal of Vehicle Design. Vol. 33, Nos. 1/2/3, pp. 17-35.

[39]     J. Lindler, Y.-T. Choi and N.M. Wereley (2003). “Double Adjustable Electorheological and Magnetorheological Shock Absorbers.” International Journal of Vehicle Design. Vol. 33, Nos. 1-3, pp. 189-206.

[40]     S.R. Hong, S.B. Choi, Y.-T. Choi and N.M. Wereley (2003). “Nondimensional Analysis for Effective Design of Semi-Active Electrorheological Damping Systems,” IMechE Part D Journal of Automobile Engineering, Vol. 217, No. 12, pp. 1095–1106.

2004
[41]    P. Poddar, J. L. Wilson, H. Srikanth, Y.-H. Yoo, N. M. Wereley, S. Kotha, L. Barghouty and R. Radhakrishnan (2004). “Nanocomposite Magneto-Rheological (MR) Fluids With Uniformly Dispersed Fe Nanoparticles,” Journal of Nanoscience and Nanotechnology, Vol. 4, No. 1-2, January-February.

[42]     N. Wereley, J. Lindler, N. Rosenfeld, and Y.-T. Choi (2004). “Biviscous Damping Behavior in Electrorheological Shock Absorbers.” Smart Materials and Structures. Vol. 13, No. 4, August, pp. 743-752.

[43]     Y. Zhao, Y.-T. Choi, and N. M. Wereley (2004). “Semi-active Damping of Ground Resonance in Helicopters Using Magnetorheological Dampers.” Journal of the American Helicopter Society. Vol. 49, No. 4, October, pp. 468-482.

[44]    J.-H. Yoo and N.M. Wereley (2004). “Performance of a Magnetorheological Hydraulic Power Actuation System,” Journal of Intelligent Material Systems and Structures. Vol. 15, No. 11, November, pp. 847-858.

[45]    N. Rosenfeld and N.M. Wereley (2004). “Volume-Constrained Optimization of Magnetorheological and Electrorheological Valves and Dampers.” Smart Materials and Structures. Vol. 13, No. 6, December, pp. 1303-1313.

[46]    G. Wang and N.M. Wereley (2003). “Free Vibration Analysis of Rotating Blades With Uniform Tapers,” AIAA Journal. Vol. 42, No. 12, December, pp. 2429-2437.

2005
[47]     L. Bitman, Y.-T. Choi, S.-B. Choi, N.M. Wereley (2005). “Electrorheological Damper Analysis Using an Eyring-Plastic Model.” Smart Materials and Structures. Vol. 14, No. 1, February, pp. 237–246.

[48]     S.C. Lim, J.S. Park, S.B. Choi, Y.T. Choi and N.M. Wereley (2005). “Design and Analysis Program of Electorheological Devices for Vehicle Systems.” International Journal of Vehicle Autonomous Systems. Vol. 3, No. 1, pp. 15-33.

[49]     S.B. Choi, S.R. Hong and N.M. Wereley (2005). “Characteristics of MR Fluids and Their Application to Vibration Control: Examples of Applied Research and Research Trends,” Journal of the Korean Society of Noise and Vibration Engineers, Vol. 15, No. 1, pp. 9-19. (In Korean).

[50]      G. Wang, N.M. Wereley, D.-C. Chang (2005). “Analysis of Bending Vibration of Rectangular Plates Using 2D Plate Modes,” AIAA Journal of Aircraft. Vol. 42, No. 2, March–April, pp. 542–550.

[51]     S. B. Choi, H. J. Choi, Y. T. Choi and N. M. Wereley (2005). "Preparation and Mechanical Characteristics of Poly(methylaniline) Based Electrorheological Fluid." Journal of Applied Polymer Science. Vol. 96, No. 5, pp. 1924-1929.

[52]    Y.-T. Choi, L. Bitman, and N.M. Wereley (2005). “Nondimensional Eyring Analysis of Electrorheological and Magnetorheological Dampers.” Journal of Intelligent Material Systems and Structures. Vol. 16, No. 5, pp. 383-394.

[53]    A. Chaudhuri, Norman M. Wereley, S. Kotha, R. Radhakrishnan and T.S. Sudarshan (2005). “Viscometric Characterization of Cobalt Nano-Particle-Based Magneto-rheological Fluids using Genetic Algorithms.” Journal of Magnetism and Magnetic Materials. Vol. 293, No. 1, May, pp. 206-214.
[54]    Y.-T. Choi and N.M. Wereley (2005). “Mitigation of Biodynamic Response to Vibratory and Blast-Induced Shock Loads Using Magnetorheological Seat Suspensions.” IMechE Journal of Automobile Engineering. Vol. 219, No. 6, June, pp. 741-754.

[55]    A. Chaudhuri, G. Wang, N.M. Wereley, V. Tasovski, and R. Radhakrishnan (2005). “Partial Substitution of Micron by Nanometer Scale Powders in Magneto-rheological Fluids.” International Journal of Modern Physics Part B. Vol. 19 No. 7-9, pp. 1374-1380.

[56]     Wei Hu and N.M. Wereley (2005). “Magnetorheological Fluid and Elastomeric Lag Damper for Helicopter Stability Augmentation.” International Journal of Modern Physics Part B. Vol. 19, No. 7-9, pp. 1471-1477.

[57]  Wei Hu and N.M. Wereley (2005). “Rate-Dependent Elasto-Slide Model for Single and Dual Frequency Magnetorheological Lag Damper Behavior.” International Journal of Modern Physics Part B. Vol. 19, No. 7-9, pp. 1527-1533.

[58]   W.B. Facey, N.C. Rosenfeld, Y.-T. Choi, N.M. Wereley, S.B. Choi, and P.C. Chen (2005). “Design and Testing of a Compact Magnetorheological Impact Damper for High Impulsive Loads.” International Journal of Modern Physics Part B. Vol. 19, No. 7-9, pp. 1549-1555.

[59]    J.-H. Yoo, and N.M. Wereley (2005). “Nondimensional Analysis of Annular Duct Flow in ER/MR Dampers.” International Journal of Modern Physics Part B. Vol. 19, No. 7-9, pp. 1577-1583.

[60]    Y.-T. Choi and N.M. Wereley (2005). “Nondimensional quasisteady analysis of a magnetorheological dashpot damper.” International Journal of Modern Physics Part B, Vol. 19, No. 7-9, pp. 1584-1590.

[61]    Y. M. Han, J. Y. Jung, S. B. Choi, Y. S. Jeon, Y. T. Choi and N. M. Wereley (2005). “Sliding Mode Control of ER Seat Suspension Considering Human Vibration Model.” International Journal of Modern Physics Part B. Vol. 19, No. 7-9, pp. 1689-1695.

[62]    M. S. Cho, Y. I. Kim, S. B. Choi, Y. T. Choi and N. M. Wereley (2005). “Control Performance of Vehicle ABS Featuring ER Valve Pressure Modulator.” International Journal of Modern Physics Part B. Vol. 19, No. 7-9, pp. 1696-1702.

[63]     S.R. Hong, S.B. Choi, Y.-T. Choi, and N.M. Wereley (2005) “A Hydro-Mechanical Model for Hysteretic Damping Force Prediction of ER Damper: Experimental Verification.” Journal of Sound and Vibration. Vol. 285, No. 4-5, August, pp. 1180-1188.

[64]     Y.-T. Choi, J.-U. Cho, S.-B. Choi, and N. M. Wereley (2005). “Constitutive Models of Electrorheological and Magnetorheological Fluids using Viscometers.” Smart Materials and Structures. Vol. 14, No. 5, pp. 1025–1036.

[65]     Y.-T. Choi, N.M. Wereley, and Y.-S. Jeon (2005). “Semi-active Vibration Isolation Using Magnetorheological Isolators.” AIAA Journal of Aircraft. Vol. 42, No. 5, Sept.-Oct., pp. 1244-1251.

[66]     Y.-T. Choi, N.M. Wereley (2005). “Biodynamic Response Mitigation to Shock Loads Using Magnetorheological Helicopter Crew Seat Suspensions.” AIAA Journal of Aircraft. Vol. 42, No. 5, Sept.-Oct., pp. 1288-1295.

[67]     S.-R. Hong, S.B. Choi, Y.-T. Choi, and N.M Wereley (2005). “Non-dimensional analysis and design of a magnetorheological damper.” Journal of Sound and Vibration. Vol. 288, No. 4-5, 20 December 2005, pp. 847-863.

[68]     J.H. Yoo, J. Sirohi, and N.M. Wereley (2005). “A Magnetorheological Piezo Hydraulic Actuator.” Journal of Intelligent Material Systems and Structures. Vol. 16, No. 11-12, Nov.-Dec., pp. 945-954.

2006
[69]     D.-C. Chang, T. Nguyen, G. Wang and N.M. Wereley (2006). “Applications of the Poincare Inequality to Extended Kantorovich Method.” Journal of Inequalities and Applications. Vol. 2006, No. 32356, pp. 1-21. [paper: PDF; 614 Kb]

[70]     Y.M. Han, J.Y. Jung, S.B. Choi, Y.T. Choi and N.M. Wereley (2006). “Ride Quality Investigation of an Electrorheological Seat Suspension to Minimize Human-Body Vibration.” Proceedings of the Institution of Mechanical Engineers (IMechE) Part D - Journal of Automobile Engineering. Vol. 220, No. 2, February, pp. 139-150.

[71]     A. Chaudhuri, N.M. Wereley, R. Radhakrishnan, and S.B. Choi (2006). “Rheological Parameter Estimation for A Ferrous Nanoparticle-Based Magnetorheological Fluid Using Genetic Algorithms.” Journal of Intelligent Material Systems and Structures. Vol. 17, No. 3, pp 261-269.

[72]     N.M. Wereley, A. Chaudhuri, J.-H. Yoo, S. John, S. Kotha, A. Suggs, R. Radhakrishnan, B. Love, and T.S. Sudarshan (2006). “Bidisperse Magnetorheological Fluids Using Fe Particles at Nanometer and Micron Scale.” Journal of Intelligent Material Systems and Structures. Vol. 17, No. 5, pp 393-401.

[73]    M.S. Cho, S.-B. Choi and N. M. Wereley (2006). "Wheel-Slip Control of a Passenger Vehicle Using Electrorheological Valve Pressure Modulator." Proceedings of the Institution of Mechanical Engineers: Part D - Journal of Automobile Engineering. Vol. 220, No. 5, pp. 519–529.

[74] S.R. Hong, G. Wang, W. Hu and N.M. Wereley (2006). “Liquid Spring Shock Absorber with Controllable Magnetorheological Damping.” Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering. Vol. 220, Number 8, pp. 1019-1029.

[75] S. John, C. Cadou, J.-H. Yoo and N.M. Wereley (2006). “Application of CFD in the Design and Analysis of a Piezoelectric Hydraulic Pump.” Journal of Intelligent Materials Systems and Structures. Vol. 17, No. 11, pp. 967-979.

2007

[76] W. Hu, N.M. Wereley, L. Chemouni, and P.C. Chen (2007). “Semi-active Linear Stroke Magnetorheological Fluid-Elastic (MRFE) Damper for Helicopter Main Rotor Blades.” AIAA Journal of Guidance, Control, and Dynamics. Vol. 30, No. 2, pp. 565-575

[77] K. Kothari, R. Radhakrishnan, N.M. Wereley and S. Sudarshan (2007). "Microstructure And Mechanical Properties of Consolidated Gamma Titanium Aluminides." Powder Metallurgy. Vol. 50, No. 1, pp. 21-27.

[78] G. Hiemenz, Y.-T. Choi and N.M. Wereley (2006). “Semi-Active Control of a Vertical Stroking Helicopter Crew Seat For enhanced crashworthiness.” AIAA Journal of Aircraft. Vol. 44, No. 3, pp. 1031–1034. [DOI: 10.2514/1.26492.

[79] G.T. Ngatu and N.M. Wereley (2007). “Viscometric and Sedimentation Characterization of Bidisperse Magnetorheological Fluids.” IEEE Transactions on Magnetics. 43(6):2474-2476.

[80] W. Hu, E.B. Cook, and N.M. Wereley (2007). “Energy Absorber Using a Magnetorheological Bypass Valve Filled with Ferromagnetic Beads.” IEEE Transactions on Magnetics. Vol. 43, No. 6, pp. 2695-2697.

[81] Y.-M. Han, S.-B. Choi and N.M. Wereley (2007). “Hysteretic Behavior of Magnetorheological Fluid and Identification Using Preisach Model,” J. Intelligent Material Systems and Structures, 18(8):973-981

[82] S. John, J. Sirohi, G. Wang, and N.M. Wereley (2007). “Comparison of piezoelectric, magnetostrictive and electrostrictive hybrid hydraulic actuators.” J. Intelligent Material Systems and Structures, 18(10):1035–1048.

[83] G.T. Ngatu and N.M. Wereley (2007). “High vs. Low Field Viscometric Characterization of Magnetorheological Fluids.” Inter. J. Modern Physics B, 21(28-29):4922–4928.

[84] B. Woods, N. Nersessian, and N.M. Wereley. (2007). “Manufacture of Bulk Magnetorheological Elastomers Using Vacuum Assisted Resin Transfer Molding.” Inter. J. of Modern Physics B. 21(28-29):5010–5017.

[85] Q.-H. Nguyen, Y.-M. Han, S.B. Choi and N.M. Wereley(2007). “Geometry optimization of MR valves constrained in a specific volume using the finite element method.” Smart Materials and Structures, 16(6):2242-2252.

[86] M. Brigley, Y.-T. Choi, N.M. Wereley and S.-B. Choi (2007). “Magnetorheological Isolators Using Multiple Flow Modes.” J. Intelligent Material Systems and Structures, 18(12):1143-1148.

[87] E.B. Cook, W. Hu, and N.M. Wereley (2007). “Magnetorheological Bypass Damper Exploiting Flow Through A Porous Channel.” J. Intelligent Material Systems and Structures. 18(12):1197-1203.

[88] D. Woo, S.-B. Choi, S.-R. Hong, Y.-T. Choi, and N.M. Wereley (2007). “Frontal Crash Mitigation Using MR Impact Damper for Controllable Bumper.” J. Intelligent Material Systems and Structures, 18(12):1211-1215.

[89] M. Mao, W. Hu, Y.-T. Choi, and N.M. Wereley (2007). “A Magnetorheological Damper with Bifold Valves for Shock and Vibration Mitigation.” J. Intelligent Material Systems and Structures, 18(12):1227-1232.

[90] W. Hu and N.M. Wereley (2007). “A Distributed Rate-Dependent Elasto-Slide Model for Elastomeric Lag Dampers.” AIAA Journal of Aircraft. Vol. 44, No. 6. Nov.-Dec., pp. 1972-1984.

2008

[91] N.M. Wereley, J.-U. Cho*, Y.-T. Choi and S.B. Choi (2008). “Nondimensional Quasi-steady Analysis of Shear Mode Dampers.” Smart Materials and Structures. 17(015022):1-11, Jan-Feb. DOI: 10.1088/0964-1726/17/01/015022

[92] R.C. Bell, J.O. Karli**, A.N. Vavreck, D.T. Zimmerman, G.T. Ngatu*, and N.M. Wereley (2008). “Magnetorheology of submicron diameter microwires dispersed in silicon oil.” Smart Materials and Structures. 17(015028):1-6, Jan-Feb. DOI: 10.1088/0964-1726/17/01/015028.

[93] Y.-T. Choi and N.M. Wereley (2008). “Shock Isolation Systems Using Magnetorheological Dampers.” ASME J. Vibrations and Acoustics. 30(2):024503 (6 pages). DOI: 10.1115/1.2775517.

[94] N. Wereley (2008). “Quasi-Steady Herschel-Bulkley Analysis of Magnetorheological and Electrorheological Dampers.” J. Intelligent Material Systems and Structures. 19(3):257-268. DOI: 10.1177/1045389X07088107.

[95] S. John*, A. Chaudhuri*, and N.M. Wereley (2008). “A Magnetorheological Actuation System: Test and Model.” Smart Materials and Structures. 17:025023 (15pp), Mar-Apr. DOI: 10.1088/0964-1726/17/2/025023

[96] Q.-H. Nguyen, S.-B. Choi, and N.M. Wereley (2008). “Optimal Design of Magnetorheological Valves via a Finite Element Method Considering Control Energy and a Time Constant.” Smart Materials and Structures. 17:025024 (12pp), Mar-Apr. DOI:10.1088/0964-1726/17/2/025024.

[97] S.-R. Hong, N.M. Wereley, Y.-T. Choi and S.-B. Choi (2008). “Analytical and Experimental Validation of a Nondimensional Bingham Model for Mixed Mode Magnetorheological Dampers.” J. Sound and Vibration. 312(3): 6 May 2008, Pages 399-417. DOI:10.1016/j.jsv.2007.07.087

[98] M. Brigley, Y.-T. Choi and N.M. Wereley (2008). “Experimental and Theoretical Development of Multiple Mode Magnetorheological Isolators.” AIAA J. of Guidance, Control and Dynamics. 31(3):449-459. DOI: 10.2514/1.32969.

[99] W. Hu and N.M. Wereley (2008). “Rate-dependent Elasto-slide Model for Magnetorheological Damper.” AIAA J. of Guidance, Control and Dynamics. 31(3):479-489. DOI: 10.2514/1.32732.

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[100] R. Grilli, R. Krishnan, N.M. Wereley and T. Sieg (2008). “Mechanisms-Based Analysis of Filled Elastomeric Dampers Under Single and Dual Frequency Excitations.” J. American Helicopter Society. 53(3):252-266.

[101] G.J. Hiemenz, W. Hu, and N.M. Wereley (2008). “Semi-Active Magnetorheological Helicopter Crew Seat Suspension for Vibration Isolation.” AIAA J. Aircraft. 45(3):945–953. May-Jun. DOI: 10.2514/1.32736.

[102] W. Hu and N.M. Wereley (2007). “Hybrid magnetorheological fluid elastomeric dampers for helicopter stability augmentation.” Smart Materials and Structures. 17:045021 (16 pp). DOI: 10.1088/0964-1726/17/4/045021.

[103] G. Ngatu, N.M. Wereley, J. Karli, and R.C. Bell (2008). “Dimorphic magnetorheological fluids: exploiting partial substitution of microspheres by nanowires.” Smart Materials and Structures. 17:045022 (8 pp). DOI: 10.1088/0964-1726/17/4/045022.

[104] S.-R. Hong, S. John, N.M. Wereley, Y.T. Choi and S.B. Choi (2008). “A unifying perspective on the quasi-steady analysis of magnetorheological dampers.” J. Intelligent Material Systems and Structures. 19(8): 959-976. DOI:10.1177/1045389X07082949.

[105] E.F. Burguera, B.J. Love, R. Sahul, G. Ngatu and N.M. Wereley (2008). “A physical basis for stability in bimodal dispersions including micrometer-sized particles and nanoparticles using both linear and non-linear models to describe yield.” J. Intelligent Systems and Structures. 19(11). DOI:10.1177/1045389X07086692.

Honors and Awards

Fellow, American Society of Mechanical Engineers (2008)

Techno-Sciences Faculty Fellow (2007)

Editor, Journal of Intelligent Material Systems and Structures (2007)

American Society of Mechanical Engineers Adaptive Structures and Material Systems Best Paper Award (2004).

Grover E. Bell Award to the Smart Structures Program at the University of Maryland. Team Award to researchers at UMCP working on the smart structures program for rotorcraft vibration control and stability augmentation.

Outstanding Achievement Award presented to Materials Modification Inc. and the University of Maryland for National Science Foundation STTR Phase 2 Award on “Magnetorheological Fluids for Sensor Actuator Systems.” Awarded by the Virginia Office of Science and Technology.

Fellow, Institute of Physics, UK (2001)

Associate Fellow, American Institute of Aeronautics and Astronautics (1999)

Army Young Investigator Award (1997). This was the only award given in 1997 from the engineering and environmental science division.

Faculty Early Career Development (CAREER) Award from the National Science Foundation (1997).

U. Maryland AIAA Student Chapter Broken Propeller Award (1994).

Quality Performance Award for Technical Excellence and Leadership, Infrared Materials Producibility Program, BDM Federal, Inc. (1992).

Vertical Flight Foundation GE Aircraft Engines Fellowship (1989-90)
William L. Steward Jr. Award, MIT (1987)

Captain, McGill University Varsity Rugby Team (1980-81, 1981-82)

Greville Smith Scholarship, McGill University (1978-1979, 1979-1980)

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