 |
Nagi G. Naganathan |
Nagi G. Naganathan, Ph.D. Professor and Dean College of Engineering Nitschke Hall 5012 University of Toledo Toledo, OH 43606 Phone: (419)530-8000 FAX: (419)530-8006 E-mail: nagi.naganathan@utoledo.edu |
v Biography
v Research_Interests
v Publications
v Former_Graduate_Students
Biography
Nagi Ganapathy Naganathan is currently serving as Dean of College of Engineering at The University of Toledo, Toledo, Ohio. He is a tenured Professor of Mechanical, Industrial, & Manufacturing Engineering and served as the founding Chairperson of the Mechanical, Industrial, & Manufacturing Engineering Department between 1995 and 2000. He has been on the faculty of The University of Toledo since 1986. He graduated with a B.E. (Honours) in Mechanical Engineering in 1978 from University of Madras, India, M.S. in Mechanical and Industrial Engineering from Clarkson University, New York, in 1981, and a Ph.D. in Mechanical Engineering from Oklahoma State University in 1986. He also serves as Director of the Dynamic & Smart Systems Research Laboratory at The University of Toledo.
Dr. Naganathan’s research interests are in the areas of smart material systems and structures, robotics, and microcomputer applications in electromechanical systems. His projects include design, analysis, and experimentation for smart material systems and devices involving piezoceramics and magnetorheological fluids, with applications to vibration control in automotives. Sponsors of the research include the National Science Foundation and automotive manufacturers. He has secured more than $2.6 million of sponsor funds to support his research program. Dr. Naganathan is author of more than 90 publications in peer-reviewed journals and in national and international conference proceedings. He has also been awarded a US patent on the use of piezoelectric devices in active suspension systems (US Patent 5,390,949) and he has two other patent applications under active review. He has served as the primary graduate advisor for more than 40 students at the masters and doctoral levels.
Dr. Naganathan is a recipient of many awards including the Fellow grade of ASME, The University of Toledo Outstanding Teacher Award, The University of Toledo Outstanding Research Award, the SAE Ralph R. Teetor Educational Award, the ASME Outstanding Regional Faculty Advisor Award, and named the TST/TSPE Engineer of the Year for 2003. In January 2003, he was invited to membership in Rotary International. As part of his professional experience outside academe, he spent a year with Dana Corporation conducting vibration analysis and control studies on heavy-duty truck powertrains and another year as a Design Engineer with Leyland Motors. He has also served as a consultant for many industries such as Dana Corporation, Eaton Corporation, General Motors, Proctor and Gamble, Solar Energy Research Institute, Teledyne CAE, Toledo Stamping, and Reed Air Products.n
Research Interests
Design, Analysis and Control of Smart Materials Systems
Conventional actuation using kinematic linkages (used as electro-mechanical systems, hydraulic systems, etc.) will not meet requirements of industrial tasks that demand highly precise, yet forceful motions. Actuators made of smart materials such as piezoceramics could logically meet both of the above task requirements. However, regulation of these devices to effect the desired performance has always been a challenging problem, particularly when process requirements exceed simplistic uniaxial motions. Dr. Naganathan and his research group have developed finite element based analytical models that will help to predict the performance of these devices. Additionally, experimental investigations are also being pursued. In the past, these devices have only been used in high frequency micro-actuation (motion ranges of the order of microns in the KHz range). A new class of large stroke, smart material actuators are now being developed at The University of Toledo that are capable of high as well as low frequency motion. The research group has also conducted extensive work on the use of magnetorheological fluids in vibration isolators. For more details on current smart systems research, please visit the Dynamics & Smart Systems Laboratory website.
Analysis & Control of Vibrations in Automotive Applications
Vibration issues have always demanded a great deal of attention in automotive applications. With the advent of high torque, low RPM engines, particularly in heavy duty truck applications, the automotive industry is in need of better techniques to model and predict these vibrations. Components whose performances have been taken for granted are once again being revisited for their design and performance adequacy. Dr. Naganathan's research emphasizes torsional vibrations in power trains and the associated rattle problems in gear trains. This research is now being conducted in cooperation with the automotive industry.
Sponsored Projects
Sponsor |
Project |
|
Dana Driveshaft Division |
Development of Engineering Methodologies for Heavy, Medium, and Light Duty Driveline Applications (renewal) |
|
McMaster Motor Company |
McMaster Rotary Engine - Phase III |
|
McMaster Motor Company |
McMaster Rotary Engine - Phase II |
|
National Science Foundation |
Engineering Senior Design Projects to Aid the Disabled |
|
McMaster Motor Company |
McMaster Rotary Engine – Phase I |
|
Dana Corporation |
Vehicle Engineering Program (renewal) |
|
Daimler-Chrysler Corporation |
Development of a Self-locking Flex plate |
|
Daimler-Chrysler Corporation |
NVH Improvement Techniques for Automotive Seats |
|
Dana Driveshaft Division |
Driveline Analysis - Off-highway applications |
|
National Science Foundation |
Analysis, Modeling and Experimental Validation of the Three-Dimensional Dynamic Response of the Human Knee Joint |
|
Daimler-Chrysler Corporation |
Vehicular Applications of Smart Materials - Phase II |
|
Dana Corporation |
Vehicle Engineering Program |
|
Dana Driveshaft Division |
Driveline Analysis - Medium & Light Duty Applications |
|
Defense Advanced Research Projects Agency (Subcontract to Material Systems, Inc, MA.) |
Preisach Models in Actuators |
|
Chrysler Corporation |
Vehicular Applications of Smart Materials |
|
Office of Naval Research (Subcontract to Material Systems, Inc.. MA) |
Multi-layer Actuator Modeling. |
|
Dana Driveshaft Division |
Driveline Analysis - Heavy-duty applications |
|
National Science Foundation and Morgan Matroc, Inc |
Synthesis of Smart Material Actuator Systems for Low and High Frequency Macro-motion - An Analytical and Experimental Investigation |
|
National Science Foundation |
Engineering Research Equipment - Data Acquisition Enhancement for Piezoceramic Material and Mechanics Characterization Studies. |
|
Ohio Board of Regents Research Challenge Program |
Macromotion Actuation |
|
Dana U-Joint Division |
MS Windows Interface for Universal Jt Analysis |
|
University of Toledo Faculty Research Awards & Fellowship Program |
Design of a Smart Helicopter Rotor Blade - A Feasibility Study |
|
Edison Industrial Systems Center & DENEB Robotics |
Robotics Lesson Plans using IGRIP |
|
National Science Foundation |
Performance of Piezoceramic Monolithic & Array Geometries in Microactuation - An Analytical & Experimental Study |
|
National Science Foundation |
Engineering Senior Design Projects to Aid the Disabled |
|
Ohio Board of Regents Research Challenge Program |
Design of a Light weight Automotive Active Suspension |
|
National Science Foundation |
Microactuation using Piezoceramics |
|
Edison Industrial Systems Center |
Off-line Computer Graphics Simulations of Industrial Tasks |
|
University of Toledo Faculty Research Awards & Fellowship Program |
Microactuation using Piezoceramics - A Preliminary Experimental Stud |
|
Edison Industrial Systems Center |
Mathematical Modeling and Computer Graphic Simulation of Real World Manufacturing Alternatives |
|
University of Toledo Program Excellence Award |
Integration of Artificial Intelligence and Knowledge-base Capabilities |
|
University of Toledo Faculty Research Awards & Fellowship Program |
Dynamic Performance Evaluation of a Flexible Manipulator |
Selected Journal Publications
Constantin Ciocanel, Mohammad H. Elahinia, Kevin E. Molyet, Nagi. G. Naganathan, Design, Analysis, and Control of a Magneto-rheological Fluid Based Torque Transfer Device, International Journal of Fluid Power, Vol. 9, No. 3, 2008, pp.19-24.
Constantin Ciocanel, Glenn Lipscomb, Nagi. G. Naganathan, A Constitutive Equation for Magneto-rheological Fluid Characterization, Journal of Phase Equilibria and Diffusion, vol. 29, no. 4, pp. 305-311, 2008.
K. Molyet, C. Ciocanel, H. Yamamoto and N.G. Naganathan - Design and Performance of a MR Torque Transfer Device, International Journal of Fluid Power, Vol. 7, No. 3, 2006, pp.21-28.
C. Ciocanel, K. Molyet, H. Yamamoto, S.L. Vieira and N.G. Naganathan - MR Fluid Behavior under Constant Shear Rates and High Magnetic Fields over Long Time Periods, ASME Journal of Engineering Materials and Technology, 128, pp. 163-168, 2006.
S.M. Peelamedu, C. Ciocanel and N. Naganathan - Impact detection for smart automotive damage mitigation systems, Smart Materials and Structures, Vol. 13, pp. 990–997, 2004.
S.L. Vieira, C. Ciocanel, P. Kulkarni, A. Agrawal and N.G. Naganathan - Behavior of MR Fluids in Squeeze Mode, International Journal of Vehicle Design, Vol. 33, Nos. 1-3, pp. 36-49, 2003.
P. Kulkarni, C. Ciocanel, S.L. Vieira and N.G. Naganathan - Study of the Behavior of MR Fluids in Squeeze, Torsional and Valve Modes, Journal of Intelligent Material Systems and Structures, Vol. 14, Issue 02, pp. 99-104, 2003.
Agrawal, C. Ciocanel, T. Martinez, S.L. Vieira, N.G. Naganathan, S. Robb and J. Duggan - A Bearing Application Using Magnetorheological Fluids, Journal of Intelligent Material Systems and Structures, Vol. 13, Issue 10, pp, 667- 673, 2002.
Y. Yu, Z. Xiao, N.G. Naganathan and R.V. Dukkipati - Preisach Modeling of Hysteresis for Piezoceramic Actuator System, JSME International, Series C, Vol. 44, No. 2, 2001, pp. 553-560.
Barnett, S.M. Peelamedu, R.V. Dukkipati and N.G. Naganathan - Finite Element Approach to Model and Analyze Piezoelectric Actuators, JSME International, Series C, Vol. 44, No. 2, 2001, pp. 476-485.
Agrawal, P. Kulkarni, S.L. Vieira and N.G. Naganathan, An Overview of Magneto- and Electro-Rheological Fluids and Their Applications in Fluid Power Systems, International Journal of Fluid Power, Vol. 2, No. 2, 2001, pp. 5-36.
Y. Yu, Z. Xiao, N.G. Naganathan and R.V. Dukkipati - Dynamic Preisach Modeling of Hysteresis for the Piezoceramic Actuator System, Proc. Instn. Mech. Engrs, Vol. 215, Part C, 2001, pp. 511-521.
Y. Yu, Z. Xiao, E.B. Lin and N.G. Naganathan - Analytic and Experimental Studies of a Wavelet Identification of Preisach Model of Hysteresis, Journal of Magnetism and Magnetic Materials, Vol. 208, 2000, pp. 255-263.
Y. Yu, N.G. Naganathan and R.V. Dukkipati - Review of Automotive Vehicle Engine Mounting Systems, International Journal of Vehicle Design, Vol. 24, No. 4, 2000, pp. 299-319.
Y.G. Kim, N.G. Naganathan and R.V. Dukkipati - A Real Time Collision Avoidance Algorithm, International Journal of Vehicle Design, Vol. 24, No. 2/3, 2000, pp.224-242.
V. Krishna, N.G. Naganathan, R. Phadnis and R.V. Dukkipati - Analysis of Driveline Loads in an Automotive Powertrain with Multiple Cardan Joints, Journal of Rail and Rapid Transit, Institution of Mechanical Engineers, Vol. 214, Part D, pp. 509-522, 2000.
Former Graduate Students
|
First |
Last |
Degree |
Yr. |
| Constantine | Ciocanel | Ph.D. | 2006 |
| Velu | Karuppaiah | MSME | 2006 |
| Kevin | Molyet | Ph.D. | 2005 |
| Gopala | Gorle | MSME | 2005 |
| Seungwon | Lee | MSIE | 2002 |
| Guru | Bandekar | MSME | 2001 |
| Prashant | Kulkarni | MSME | 2001 |
| Ashish | Agrawal | MSME | 2001 |
| Yunhe | Yu | Ph.D. | 2000 |
| Saravanan | Peelamedu | Ph.D. | 2000 |
| Tom | Essi | MSME | 1999 |
| Rahul | Phadnis | MSME | 1999 |
| Arvind | Srinivasan | MSME | 1998 |
| Devdas | Kumbla | MSME | 1998 |
| Duane | Alt | MSME | 1997 |
| Seungwon | Lee | Ph.D. | 1996 |
| Kevin | Molyet | MSME | 1996 |
| Jim | Duggan | MSME | 1995 |
| Monica (Gupta) | Katoria | MSME | 1995 |
| Vedam | Kumar | MSME | 1995 |
| Sandy | Niemeyer | MSME | 1995 |
| Tom | O'Neil | MSME | 1995 |
| Satish | Rao | MSME | 1995 |
| Gopal | Salvady | MSME | 1995 |
| Sridhar | Thirupathi | Ph.D. | 1995 |
| Kunal | Tipnis | MSME | 1995 |
| Sharif | Ziauddin | MSME | 1995 |
| Kannan | Govindaswamy | MSME | 1994 |
| Indra | Majumder | MSME | 1993 |
| Jim | Onders | MSME | 1993 |
| Sriram | Sreeram | MSME | 1993 |
| Yaoxian | Xu | MSME | 1993 |
| Heongill | Lee | MSES | 1992 |
| Arun | Shivaram | MSME | 1992 |
| Paul | Van Benthem | MSES | 1992 |
| Youngon | Kim | MSME | 1991 |
| Chenchiah | Kosaraju | MSME | 1991 |
| Ravi | Parthasarathy | MSME | 1991 |
| C.S. | Viswanath | MSME | 1991 |
| Seungwon | Lee | MSME | 1990 |
| Pandu | Visweswaran | MSME | 1990 |
| Alan | Barnett | MSME | 1989 |
| Cyriac | Devasia | MSME | 1989 |
| S. | Hioe | MSME | 1989 |
| R. | Natarajan | MSME | 1989 |
| Rajgopal | Rao | MSME | 1989 |
| Ranjit | Konkar | MSME | 1988 |
| Rao | Amireddy | MSME | 1987 |