Some Selected Research Reports
Jet engine related airplane accidents, 1998
Control of High-Frequency Smart Structures Through NiTiNOL fibers, 1995
Analysis of mistuned blades with chordwise modes, 1993
Smart structures with twisted and braided optical fibers, University of Connecticut report under the Economic Development Initiative, 1993
Modeling Hierarchical Structures, 1992
Modeling Buckyballs, 1992
Modeling thermal cracks: A review, 1992
Characteristics of Dry Friction Damping. R84956479.
Advanced Turboprop Vibratory Characteristics. NASA:CR 174708.
Basic Study of Bladed Disk Structural Response. AFWALTR832075.
Effects of Mistuning on Blade Torsional Flutter. NASA:CR 165137.
Turbojet Engine Blade Damping. NASA:CR 165496.
Flutter Analysis of Rotating Cylindrical Shells Immersed in a Rotating Compressible Fluid.
Stage Vibration Analysis via a Modified Modal Synthesis Procedure.
Calculation of Mode Shapes of Bladed Disk Assemblies from Holograms.
Analysis and Testing of Synchronous Vibration Absorbers.
Parallel Damped Dynamic Vibration Absorbers.
Concepts of Impedence Analysis.
The Determination of Mathematical Models from Impedance Test Data.
Archival Publications
Emerging Workplace, Paper presented at the Ninth International Conference on Management of Technology, Miami, Florida, February 2000
Characterization of the Laws of Friction in the Context of Blade Dynamics, Journal of Engineering for Power, 1999
Flutter and Resonant Vibration Characteristics of Engine Blades, IGTI Scholar Paper, Journal of Engineering for Gas Turbines and Power, October 1997, Vol. 119, pp 741-775
Multiplexing Embedded NiTiNOL Actuators to Obtain Increased Bandwidth in Structural Control, Journal of Intelligent Material Systems and Structures, Vol. 8, No. 3, March, 1997
Biomimetics: Advancing manmade materials through guidance from nature, An Update, Applied Mechanics Reviews, 1996
Smart Biological Systems as Models for Engineered Structures, Journal of Materials Science and Engineering: C 4 (1996), 19-26
Control of High-Frequency Smart Structures Through Embedded NiTiNOL fibers, paper presented at the 3rd International Conference on Intelligent Materials, Lyon, June 3-5, 1996.
Excitation of a Beam using Multiple Shape Memory Alloy Actuators, Paper presented at the 2nd International Conference on Composites Engineering, New Orleans, August 1995
Machine Tool Chatter Suppression through Gyroscopic Vibration Absorbers, Paper presented at the Society of Engineering Science Conference, New Orleans, October, 1995
Galloping of Transmission Lines, Paper presented at the EPRI workshop on Smart Materials, EPRI, TR-105072, Project 9000 Proceedings, May 1995
Are Biological Structures Smart? paper presented at the Society of Engineering Science Conference, Texas A&M, College Station, Texas, 1994.
Direct use of Unsteady Aerodynamic Pressures in the Flutter Analysis of Mistuned Blades. Paper presented at the International Gas Turbine Conference and Exhibit, The Hague, June 1994; Journal de Physique III, France 5, 1587-1597, October, 1995
Twisted and Braided Fiber-Optic Sensors in Smart Structures. Paper presented at the Intelligent Materials and Structures Conference, Williamsburg, Va., May 1994
Hierarchical Structures; A Challenge to Modeling. Paper presented at the International Invitational UACEM Symposium, Danvers, MA, August 1993.
Hierarchy as a Principle in the Design and Development of Structural Components, AIAA Journal, Vol. 32, # 9, pp 1933-1935, 1994.
Smart Structures and Materials; ASME, AD Volume 24, 1991.
Modal Analysis Through Piezo Films, Paper presented at the WAM of ASME, December 1991, ASME AD Volume 24.
Biomimetics: Advancing manmade materials through guidance from nature, Applied Mechanics Reviews, Vol. 44, # 11, pp 463-482, November 1991.
Thermal and Mechanical Considerations in Using Shape Memory Alloys to Control Vibrations in Flexible Structures; Metallurgical Transactions, Series A, Volume 22A, 1991.
The Influence of Massively Parallel Processing in Boundary Element Computations, Paper presented at the Conference on Boundary Elements, October 1989.
Dynamic Friction. Chapter in Large Space Structures and Control, Springer Verlag, 1988.
Structural Dynamics of a Helicopter Rotor Blade System, Journal of The American Helicopter Society, January, 1990; Paper presented at the 44th Annual National Forum of the American Helicopter Society, May 1988, Washington, DC.
A Nonlinear Theory of Dynamic Systems With Dry Friction Forces, Journal of Engineering for Gas Turbines and Power, 108, 525-530, July 1986; Presented at the 31st International Gas Turbine Conference and Exhibit, Dusseldorf, Federal Republic of Germany, June 8-12, 1986.
Dynamic Characteristics of an Assembly of Prop-Fan Blades, Journal of Engineering for Gas Turbines and Power, 108, 306-312, April 1986; Presented at the 30th International Gas Turbine Conference and Exhibit, Houston, Texas, March 18-21, 1985.
Aeroelastic Instabilities in Labyrinth Air Seal Systems. Presented at 29th International Gas Turbine Conference and Exhibit, Amsterdam, The Netherlands, June 1984.
Aerodynamically Excited Vibrations of a Part Span Shrouded Fan, Journal of Engineering for Gas Turbines and Power, 107, 399-407, April 1985; Presented at the 29th International Gas Turbine Conference and Exhibit, Amsterdam, The Netherlands, June 4-7, 1984.
Recent Advances in the Understanding and Prediction of Turbomachine Subsonic Stall Flutter. Journal of Engineering for Gas Turbines & Power, 107, April, 1985; Presented at the 29th Gas Turbine Conference and Exhibit, Amsterdam, The Netherlands, June 1984.
Vibrations of Bladed Disk Assemblies: A Selected Survey, Journal of Vibration, Acoustics, Stress and Reliability in Design; Transaction of the ASME, Vol. 106, #2, pp 165-168, April 1984,
Paper presented at the Sixth World Congress on the Theory of Machines and Mechanisms, New Delhi, India, December 1983.
Characteristics of Dry Friction Forces. Presented at Vibration Damping Workshop, Long Beach, CA, February 1984.
Cascade Flutter Analysis of Cantilevered Blades. Journal of Engineering for Gas Turbines and Power, 106, 34-43, January 1984, Presented at 28th International Gas Turbine Conference and Exhibit, Phoenix, AZ, March 27-31,1983
Measurement of Relative Vibratory Motion at the Shroud Interfaces of a Fan, Journal of Vibration, Acoustics, Stress and Reliability in Design, 106, 189-197, Transaction of the ASME, April 1984, Paper presented at the ASME Design Engineering Division Conference on Mechanical Vibration and Noise, Dearborn, MI; Published in the symposium volume, Vibration of Bladed Disk Assemblies, September 1983.
Vibrations of Bladed Disk Assemblies, bound volume published by ASME for presentation at the Design Engineering Division Conference on Mechanical Vibration and Noise, Dearborn, MI, September 1983.
Twin Mode Analysis of Aeroengine Fan Vibrations & Flutter, Published in Vibration of Bladed Disk Assemblies, September 1983, ASME Design Engineering Division Conference on Mechanical Vibration and Noise, Dearborn, MI.
Dry Friction Damping Mechanisms in Engine Blades, Journal of Engineering for Power, 105, pp 332-341, Transaction of the ASME, April 1983, Paper presented at the 27th International Gas Turbine Conference and Exhibit, London, England, April 18-22, 1982.
Effects of Mistuning on Blade Torsional Flutter. Paper presented at the 5th International Symposium on Air Breathing Engines, Bangalore, India, February 1981.
Basic Research and the N.S.F. Excerpts published in a joint report entitled Research Needs in Nonlinear Dynamics, 1979.
Dynamic Analysis of an Assembly of Shrouded Blades Using Component Modes, ASME Journal of Mechanical Design, Vol. 100, No. 3, pp 520-527, July 1978.
Structural Dynamic Aspects of Bladed Disk Assemblies, bound volume published by ASME at the Winter Annual Meeting, New York, NY, December 1976.
Effects of Mistuning on Resonant Stress of Turbine Blades. Paper presented at the ASME Winter Annual Meeting, New York, NY, December 1976.
Influence of Mistuning on Rotor Blade Vibrations. AIAA Journal, Vol. 13, No. 14, pp. 460-464, April 1975.
Flutter of Coaxial Cylindrical Shells in an Incompressible Axisymmetric Flow. AIAA Journal, Vol. 12, No. 12, pp.1631-1635, December 1974.
Traveling Waves in Rotating Cylindrical Shells. Transactions of the Journal of Engineering for Industry, Transactions of the ASME, Vol. 93, Series B, pp 1229-1232 November 1971.
Flutter Analysis of Rotating Cylindrical Shells Immersed in a Circular Helical Flow Field of Air, AIAA Journal, 9, No. 3, pp 394-400, March 1971, Paper presented at the AIAA/ASME 12th Structures, Structural Dynamics and Materials Conference, Anaheim, CA, April 19-21, 1971.
Gyroscopic Systems as Vibration Absorbers, Journal of Engineering for Industry, Vol. 91, # 4, Series B, pp 1156-1160, November 1969, Paper presented at the ASME Vibrations Conference, Philadelphia, PA, March 30 – April 2, 1969.
Analysis of Parallel Damped Dynamic Vibration Absorbers, Journal of Engineering for Industry, Transactions of the ASME, Vol. 91, Series B, No. 1, pp 282-287, February 1969, Paper presented at the Winter Annual Meeting, ASME, New York, NY, December 15, 1968.
Recent Advances in the Study of the Synchronous Vibration Absorbers, Bulletin 37, Part 6, January, 1968, Paper presented at the 37th Shock and Vibration Symposium, October 1967.
Dynamic Stability of Beam Columns. AIAA Journal, Vol. 5, # 9, pp 1685-1686, September 1967.
Nonlinear Vibrations of Beams and Plates. International Journal of Nonlinear Mechanics, 1, No. 3, pp 179-191, November 1966.
Steady State Response of Beams Supported on Nonlinear Springs. AIAA Journal, Vol. 4, # 10, pp 1863-1864, October 1966.
Large Amplitude Free Oscillations of Beams and Plates. AIAA Journal, Vol. 3, # 10, pp 1951-1953, October 1965.
Buckling Loads of Bars with Variable Stiffness: A Simple Numerical Method. AIAA Journal, Vol. 2, #1, pp 139-140, January 1964.
Response of Portal Frames to Dynamic Loading, Vol. 23, Publications of the International Association for Bridge and Structural Engineering, Zurich, 1963.