Professor of Aerospace Engineering, The Pennsylvania State University
Deputy Director, Penn State Vertical Lift Research Center of Excellence (VLRCOE)
229 Hammond Building, University Park, PA 16802
Phone: (814) 865-1164, Facsimile: (814) 865-7092, E-mail: fgandhi@engr.psu.edu
RESEARCH EXPERIENCE AND INTERESTS
Rotorcraft Dynamics and Aeroelasticity – Conventional helicopters, compound helicopters, tiltrotor aircraft, and swashplateless rotors. Passive design optimization, active and semi-active controls; for helicopter vibration reduction, aeroelastic and aeromechanical stability augmenation, and blade-vortex interaction alleviation. Smart Materials and Structures – Shape Memory Alloys and polymers, Electrorheological and Magnetorheological Fluids, Piezoelectric actuators and Active Constrained Layer Treatments; for structural vibration reduction and damping augmentation. Variable Stiffness Structures, Cellular Structures and Bi-Stable Structures. Morphing aircraft/rotorcraft systems – Variable camber, span, twist, chord, flexible skin design.
EDUCATION
Doctor of Philosophy in Aerospace Engineering, August 1995
University of Maryland, College Park, Alfred Gessow Rotorcraft Center
Modeling of Nonlinear Elastomeric Dampers and Effects on Bearingless Rotor Aeroelasticity
(Thesis Advisor: Inderjit Chopra)
Master of Science in Aerospace Engineering, May 1992
University of Maryland, College Park, Alfred Gessow Rotorcraft Center
Bachelor of Science in Aeronautical Engineering, July 1989
Indian Institute of Technology, Bombay
EMPLOYMENT
Professor of Aerospace Engineering, May 2006 – onward
The Pennsylvania State University
Associate Professor of Aerospace Engineering, May 2001 – May 2006
The Pennsylvania State University
Assistant Professor of Aerospace Engineering, October 1995 – May 2001
The Pennsylvania State University
Graduate Research Assistant, January 1990 – August 1995
University of Maryland, College Park, Alfred Gessow Rotorcraft Center
Graduate Teaching Assistant, September 1989 – December 1989
University of Maryland, College Park, Alfred Gessow Rotorcraft Center
1. Gandhi, F., and Lee, S. W., “A Composite Beam Finite Element Method with p-Version Assumed Warping Displacement,” Journal of Composite Engineering, Vol. 2, Nos. 5-7, 1992, pp. 329-345.
2. Gandhi, F., and Chopra, I., “An Analytical Model for a Nonlinear Elastomeric Lag Damper and its Effects on Aeromechanical Stability in Hover,” Journal of the American Helicopter Society, Vol. 39, No. 4, Oct. 1994, pp. 59-69.
3. Gandhi, F., and Chopra, I., “A Time-Domain Nonlinear Viscoelastic Damper Model,” Smart Materials and Structures, 5 (1996), pp. 517-528.
4. Gandhi, F., and Chopra, I., “Analysis of Bearingless Main Rotor Aeroelasticity Using an Improved Time-Domain Nonlinear Elastomeric Damper Model,” Journal of the American Helicopter Society, Vol. 41, No. 3, July 1996, pp. 267-277.
5. Gandhi, F., and Chopra, I., “An Aeroelastic Analysis Methodology for Bearingless Main Rotor Helicopters,” Journal of the American Helicopter Society, Vol. 43, No. 1, Jan. 1998, pp. 66-75.
6. Wolons, D., Gandhi, F., and Malovrh, B., “Experimental Investigation of the Pseudoelastic Hysteresis Damping Characteristics of Shape Memory Alloy Wires,” Journal of Intelligent Material Systems and Structures, Vol. 9, No. 2, Feb. 1998, pp. 116-126.
7. Marathe, S., Gandhi, F., and Wang, K. W., “Helicopter Blade Response and Aeromechanical Stability with a Magnetorheological Fluid Based Lag Damper,” Journal of Intelligent Material Systems and Structures, Vol. 9, No. 4, April 1998, pp. 272-282.
8. Gandhi, F., and Hathaway, E., “Optimized Aeroelastic Couplings for Alleviation of Helicopter Ground Resonance,” Journal of Aircraft, Vol. 35, No. 4, July-August 1998, pp. 582-590.
9. Gandhi, F., and Wolons, D., “Characterization of the Pseudoelastic Damping Behavior of Shape Memory Alloy Wires Using Complex Modulus,” Smart Materials and Structures, 8 (1999), pp. 49-56.
10. Badre-Alam, A., Wang, K. W., and Gandhi, F., “Optimization of Enhanced Active Constrained Layer (EACL) Treatment on Helicopter Flexbeams for Aeromechanical Stability Augmentation,” Smart Materials and Structures, 8 (1999), pp. 182-196.
11. Gandhi, F., and Malovrh, B., “Influence of Balanced Rotor Anisotropy in the Design of Aeromechanically Stable Helicopters,” AIAA Journal, Vol. 37, No. 10, October 1999, pp. 1152-1160.
12. Anusonthi-Inthra, P., and Gandhi, F., “Helicopter Vibration Reduction through Cyclic Variations in Rotor Blade Root Stiffness,” Journal of Intelligent Material Systems and Structures, Vol. 11, No. 2, Feb. 2000, pp. 153-166.
13. Gandhi, F., and Tauszig, L., “A Critical Evaluation of Various Approaches for the Numerical Detection of Helicopter Blade-Vortex Interactions,” Journal of the American Helicopter Society, Vol. 45, No. 3, July 2000, pp. 179-190.
14. Anusonthi-Inthra, P., and Gandhi, F., “Optimal Control of Helicopter Vibration through Cyclic Variations in Blade Root Stiffness,” Smart Materials and Structures, Vol. 10(1), Feb. 2001, pp. 86-95.
16. Hathaway, E., and Gandhi, F., “Concurrent Optimization of Aeroelastic Couplings and Rotor Stiffness for the Alleviation of Helicopter Aeromechanical Instability,” Journal of Aircraft, Vol. 38, No. 1, Jan.-Feb. 2001, pp. 69-80.
17. Gandhi, F., “Influence of Nonlinear Viscoelastic Material Characterization on Performance of Constrained Layer Damping Treatment,” AIAA Journal, Vol. 39, No. 5, May 2001, pp. 924-931.
18. Tauszig, L., and Gandhi, F., “Influence of Blade-To-Blade Dissimilarity on Alleviation of Helicopter Blade-Vortex Interactions,” Mathematical and Computer Modelling, Vol. 33, Nos. 10-11, May-Jun. 2001, pp. 1139-1154.
19. Malovrh, B., and Gandhi, F., “Mechanism Based Phenomenological Models for the Pseudoelastic Hysteresis Behavior of Shape Memory Alloys,” Journal of Intelligent Material Systems and Structures, Vol. 12, No. 1, Jan. 2001, pp. 21-30.
20. Gandhi, F., and Chapuis, G., “Passive Damping Augmentation of a Vibrating Beam using Pseudoelastic Shape Memory Alloy Wires,” Journal of Sound and Vibration, (2002) 250(3), 519-539.
21. Gandhi, F., and Munsky, B., “Effectiveness of Active Constrained Layer Damping Treatments in Attenuating Resonant Oscillations,” Journal of Vibration and Control, Vol. 8, No. 6, 2002, pp.747-775.
22. Gandhi, F., and Anusonthi-Inthra, P., “Helicopter Vibration Reduction using Discrete Controllable-Stiffness Devices at the Rotor Hub,” Journal of Aircraft, Vol. 39, No. 4, Jul.-Aug. 2002, pp. 668-677.
23. Gandhi, F., and Munsky, B., “Comparison of Damping Augmentation Mechanisms with Position and Velocity Feedback in Active Constrained Layer Treatments,” Journal of Intelligent Material Systems and Structures, Vol. 13, No. 5, May 2002, pp. 259-326.
24. Gandhi, F., and Anusonti-Inthra, P., “Adaptive Control of Semi-Active Variable Stiffness Devices for Narrow-Band Disturbance Rejection,” Journal of Intelligent Material Systems and Structures, Vol. 14, No. 3, March 2003, pp. 191-201.
25. Hathaway, E., and Gandhi, F., “Modeling Refinements in Simple Tiltrotor Aeroelastic Stability Analyses,” Journal of the American Helicopter Society, Vol. 48, No. 3, July 2003, pp. 186-198.
26. Gandhi, F., and Tauszig, L., “A Method to Evaluate the Contributions of Individual Interactions to Helicopter Blade-Vortex Interaction Noise,” Journal of the American Helicopter Society, Vol. 48, No. 4, Oct. 2003, pp. 287-299.
27. Anusonthi-Inthra, P., Gandhi, F., and Miller, L., “Reduction of Helicopter Vibration through Cyclic Control of Variable Orifice Dampers,” The Aeronautical Journal, The Royal Aeronautical Society, Vol. 107, No. 1077, Nov. 2003, pp. 657-672.
28. Badre-Alam, A., Wang, K. W., and Gandhi, F., “An Analysis of Interlaminar Stresses in Active Constrained Layer Damping Treatments,” Journal of Sound and Vibration, 269 (2004) 965 –990.
29. Anusonti-Inthra, P., and Gandhi, F., “Cyclic Modulation of Semi-Active Controllable Dampers for Tonal Vibration Isolation,” Journal of Sound and Vibration, 275 (2004) 107 –126.
31. Gandhi, F., and Sekula, M. K., “Helicopter Vibration Reduction using Fixed-System Auxiliary Moments,” AIAA Journal, Vol. 42, No. 3, March 2004, pp. 501-512.
1. Gandhi, F., and Hathaway, E., “Optimized Aeroelastic Couplings for Alleviation of Helicopter Ground Resonance,” Proceedings of the 38th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference, Kissimmee, Florida, April 1997, pp. 860 - 875, AIAA Paper No. 97-1282.
2. Gandhi, F., and Weller, W., “Active Aeromechanical Stability Augmentation using Fuselage State Feedback,” Proceedings of the 53rd Annual Forum of the American Helicopter Society, Virginia Beach, Virginia, April 1997, pp. 1350 - 1362.
3. Gandhi, F., and Malovrh, B., “Influence of Balanced Rotor Anisotropy in the Design of Aeromechanically Stable Helicopters,” Proceedings of the 53rd Annual Forum of the American Helicopter Society, Virginia Beach, Virginia, April 1997, pp. 783 - 796.
4. Gandhi, F., “Concepts for Damperless Aeromechanically Stable Rotors,” Proceedings of the Royal Aeronautical Society Innovation in Rotorcraft Technology Conference, London, United Kingdom, June 1997, pp. 14.1 - 14.31.
5. Marathe, S., Gandhi, F., and Wang, K. W., “Helicopter Blade Response and Aeromechanical Stability with a Magnetorheological Fluid Based Lag Damper,” Proceedings of the 1998 SPIE Conference on Smart Structures and Materials, March 1998, SPIE Vol. 3329, pp. 390 – 401.
6. Badre-Alam, A., Wang, K. W., and Gandhi, F., “Aeromechanical Stability Augmentation of Helicopters using Enhanced Active Constrained Layer (EACL) Treatment on Flex Beams,” Proceedings of the 1998 SPIE Conference on Smart Structures and Materials, March 1998, SPIE Vol. 3327, pp. 73 - 85.
7. Wolons, D., Gandhi, F., and Malovrh, B., “An Experimental Investigation of the Pseudoelastic Hysteresis Damping Characteristics of Nickel-Titanium Shape Memory Alloy Wires,” Proceedings of the 39th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference, Long Beach, California, April 1998, pp. 2821 - 2833, AIAA Paper No. 98-2036.
8. Hathaway, E., and Gandhi, F., “Individual Blade Control for Alleviation of Helicopter Ground Reson-ance,” Proceedings of the 39th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference, Long Beach, California, April 1998, pp. 2507 - 2517, AIAA Paper No. 98-2006.
9. Tauszig, L., and Gandhi, F., “Numerical Detection of Blade-Vortex Interactions Using a Free Wake Analysis - A Comparison of Various Approaches,” Proceedings of the 24th European Rotorcraft Forum, Marseilles, France, Sept. 1998, pp. AE 10-1 - 10-24.
10. Marathe, S., Wang, K. W., and Gandhi, F., “The Effect of Model Uncertainty on Magnetorheological Fluid Damper Based Systems Under Feedback Linearization Control,” Proceedings of the ASME International Mechanical Engineering Congress and Exposition (Adaptive Structures and Material Systems), Anaheim, California, Nov. 1998, AD-57, pp. 129-140.
11. Malovrh, B., and Gandhi, F., “Mechanism Based Phenomenological Models for Pseudoelastic Damping Behavior of Shape Memory Alloys,” Proceedings of the 40th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, St. Louis, Missouri, April 1999, pp. 2723-2733.
12. Sekula, M., and Gandhi, F., “Influence of Controlled Blade Lead-Lag Motions on Helicopter Vibration,” Proceedings of the 40th AIAA/ASME/ASCE/AHS/ASC Structures, Structural, Dynamics and Materials Conference, St. Louis, Missouri, April 1999, pp. 172-182, AIAA Paper No. 99-1223.
13. Anusonthi-Inthra, P., and Gandhi, F., “Helicopter Vibration Reduction through Cyclic Variations in Rotor Blade Root Stiffness,” Proceedings of the 55th Annual Forum of the American Helicopter Society, Montreal Canada, May 1999, pp. 209-225.
14. Hathaway, E., and Gandhi, F., “Concurrent Optimization of Aeroelastic Couplings and Rotor Stiffness for the Alleviation of Helicopter Aeromechanical Instability,” Proceedings of the 55th Annual Forum of the American Helicopter Society, Montreal Canada, May 1999, pp. 2212-2227.
15. Tauszig, L., and Gandhi, F., “Influence of Blade-to-Blade Dissimilarities on the Alleviation of Blade-Vortex Interactions,” in Addendum to the Proceedings of the 55th Annual Forum of the American Helicopter Society, Montreal, Canada, May 1999, 16 pages.
16. Gandhi, F., “Influence of Nonlinear Viscoelastic Material Characterization on Performance of Constrained Layer Damping Treatment,” Proceedings of the Tenth International Conference on Adaptive Structures and Technologies (ICAST '99), Paris, France, Oct. 1999, pp. 269-279.
17. Gandhi, F., and Munsky, B., “Comparison of the Mechanism and Effectiveness of Position and Velocity Feedback in Active Constrained Layer Damping Treatments,” Proceedings of the 2000 SPIE Conference on Smart Structures and Materials, March 2000, SPIE Vol. 3989, pp. 61-72.
18. Malovrh, B., and Gandhi, F., “Time Domain Mechanical Models for SMA Pseudoelastic Damping Behavior,” Proceedings of the 2000 SPIE Conference on Smart Structures and Materials, March 2000, SPIE Vol. 3989, pp. 324-335.
19. Badre-Alam, A., Gandhi, F., and Wang, K. W., “An Improved Constrained Layer Damping Treatment Design for High Damping and Low Interlaminar Stresses,” Proceedings of the 2000 SPIE Conference on Smart Structures and Materials, March 2000, SPIE Vol. 3989, pp. 2-13.
20. Anusonthi-Inthra, P., and Gandhi, F., “Optimal Control of Helicopter Vibration through Cyclic Variations in Rotor Blade Root Stiffness,” Proceedings of the 26th European Rotorcraft Forum, The Hague, The Netherlands, Sept. 2000, pp. 32.1-32.11.
21. Gandhi, F., and Tauszig, L., “Influence of Individual Interactions on Helicopter Blade-Vortex Interaction Noise,” Proceedings of the 26th European Rotorcraft Forum, The Hague, The Netherlands, Sept. 2000, pp. 54.1-54.13.
22. Gandhi, F., and Chapuis, G., “Passive Damping Augmentation of a Vibrating Beam using Shape Memory Alloy Wires,” Proceedings of the Eleventh International Conference on Adaptive Structures and Technologies (ICAST ’00), Nagoya, Japan, Oct. 2000.
23. Gandhi, F., and Munsky, B., “Effectiveness of Active Constrained Layer Damping Treatments in Attenuating Resonant Oscillations,” Proceedings of the 42nd AIAA/ASME/ ASCE/AHS Structures, Structural Dynamics and Materials Conference and AIAA/ASME/AHS Adaptive Structures Forum, Seattle, Washington, April 2001.
24. Gandhi, F., and Anusonthi-Inthra, P., “Helicopter Vibration Reduction using Discrete Controllable-Stiffness Devices at the Rotor Hub,” Proceedings of the 42nd AIAA/ASME/ASCE/ AHS Structures, Structural Dynamics and Materials Conference and AIAA/ASME/AHS Adaptive Structures Forum, Seattle, Washington, April 2001.
26. Sekula, M., and Gandhi, F., “Evaluation of Vibration Reductions and Changes in Trim due to Helicopter Compounding,” Proceedings of the 57th Annual Forum of the American Helicopter Society, Washington DC, May 2001.
27. Gandhi, F., and Anusonti-Inthra, P., “Adaptive Control of Semi-Active Variable Stiffness Devices for Narrow-Band Disturbance Rejection,” Proceedings of the Twelfth International Conference on Adaptive Structures and Technologies (ICAST ’01), College Park, Maryland, Oct. 2001.
28. Anusonti-Inthra, P., and Gandhi, F., “Narrow-Band Disturbance Rejection using Semi-Active Control,” Proceedings of the 2001 ASME Winter Annual Meeting, New York, New York, Nov. 2001.
29. Hathaway, E., and Gandhi, F., “Modeling Refinements in Simple Tiltrotor Aeroelastic Stability Analyses,” Proc. of the 43rd AIAA/ASME/ASCE/AHS Structures, Structural Dynamics and Materials Conference and AIAA/ASME/AHS Adaptive Structures Forum, Denver, Colorado, April 2002.
30. Anusonthi-Inthra, P., Gandhi, F., and Miller, L., “Reduction of Helicopter Vibration through Cyclic Control of Variable Orifice Dampers,” Proceedings of the 58th Annual Forum of the American Helicopter Society, Montreal, Canada, June 2002.
31. Munsky, B., Gandhi, F., and Tauszig, L., “An Analysis of Helicopter Blade-Vortex Interaction Noise with Flight Path or Attitude Modification,” Proceedings of the 58th Annual Forum of the American Helicopter Society, Montreal, Canada, June 2002.
32. Gandhi, F., and Sekula, M., “Helicopter Vibration Reduction using Fixed-System Auxiliary Moments,” Proc. of the 58th Annual Forum of the American Helicopter Society, Montreal, Canada, June 2002.
34. Sarjeant, R., Frecker, M., and Gandhi, F., “Optimal Design of a Smart Conformable Rotor Airfoil,” Proc. of IMECE’02: 2002 ASME International Mechanical Congress & Exposition, New Orleans, Louisiana, Nov. 17-22, 2002, Paper No. IMECE2002-34030.
Project Title: Feasibility of Flexbeam Lag Damping Augmentation Methods
for Bearingless Rotor Aeromechanical Stability
Source of Support: United Technologies Sikorsky Aircraft
Period Covered: 03/01/97 - 12/31/97
Award Amount: $15,000 Total, Co-PI with K. W. Wang (50%)
Project Title: Reduced Order Structural Models for Airframe Vibration Control
Source of Support: United Technologies Research Center
Period Covered: 08/15/96 - 08/14/98
Award Amount: $60,000 Total, PI (100%)
Project Title: Use of Aeroelastic Couplings and Multi-Point Optimization
to Design Damperless Aeromechanically Stable Helicopters
Source of Support: US Army Research Office (Young Investigator Award)
Period Covered: 07/15/97 - 07/14/00
Award Amount: $293,717 Total, PI (100%)
Project Title: Rotor Lead-Lag Control for Helicopter Vibration and Noise Reduction
Source of Support: NASA Langley Research Center
Period Covered: 01/01/98 - 12/31/99
Award Amount: $129,288 Total, PI (100%)
Project Title: Influence of Blade-to-Blade Dissimilarities on Alleviation
of Blade-Vortex Interactions
Source of Support: US Army Research Office (under MURI program - Innovative
Technologies for Actively Controlled Jet-Smooth Quiet Rotorcraft)
Period Covered: 08/01/96 - 07/31/01
Award Amount: Approx. $35,000 per year (Yrs.1-3), $60,000 per year (Yrs. 4-5), PI (100%)
Project Title: Rotor Vibration Reduction and Stability Augmentation via
Multi-Functional Semi-Active and Active-Passive Hybrid Systems
Source of Support: National Rotorcraft Technology Center, NASA Ames Research Ctr.
(under the Penn State Rotorcraft Center of Excellence program)
Period Covered: 01/01/96 - 12/31/00
Award Amount: Approx. $ 80,000 per year* (for a five-year period)
* This research task under the NRTC Rotorcraft Center of Excellence program had
K. W. Wang as Co-PI. The figure denoted represents the candidate's portion of funding.
Project Title: (a) Development of a Smart Materials Based Actively Conformable Rotor Airfoil
(b) Active Tiltrotor Aeroelastic and Aeromechanical Stability Augmentation
Source of Support: National Rotorcraft Technology Center, NASA Ames Research Ctr.
(under the Penn State Rotorcraft Center of Excellence program)
Period Covered: 01/01/01 - 12/31/05
Award Amount: Approx. $ 80,000 per year** (for a five-year period)
** These research tasks are funded under the NRTC Rotorcraft Center of Excellence program, with the figure denoted representing the candidate’s portion of the funding under this program. Task (a) had Mary Frecker as Co-PI.
Project Title: Control and Trim Optimization for a Compound Helicopter
Source of Support: Piasecki Aircraft Corporation
Period Covered: 03/15/01 - 12/31/02
Award Amount: $232,799 Total, Co-PI with Joe Horn (50%).
Project Title: Morphing Airfoils using Smart Materials
Source of Support: National Science Foundation
Period Covered: 05/16/02 - 05/15/03
Award Amount: $55,573 Total, PI (100%)
Project Title: Closed-Loop Rotor Individual Blade Control for Helicopter
Blade-Vortex Interaction Noise Reduction
Source of Support: NASA Langley Research Center
Period Covered: 05/01/04 - 09/30/04
Award Amount: $15,000 Total, PI (100%)
Project Title: Ion-Responsive Polyelectrolyte Gel Based Muscular Hydrostat
Structures for Flexible-Robots and -Robotic Manipulators
Source of Support: Defense Advanced Research Projects Agency (DARPA)
Period Covered: 06/30/04 - 06/30/06
Award Amount: $357,348, Lead-PI, with Harry Allcock (Chemistry) as Co-PI
(candidate’s share of funding is $257,347 for the 24 month period)
Project Title: Revolutionary Physics-Based Design Tools for Quiet Helicopters
Source of Support: Defense Advanced Research Projects Agency (DARPA)
Period Covered: 09/01/04 - 08/31/06
Award Amount: $97,204/year (for a two-year period – Phase 1) ***
*** This is a multi-PI DARPA sponsored joint program involving Georgia Tech/PSU/Northern Arizona University. The figure denoted represents the candidate’s portion of the funding under this program.
Project Title: Design of Flexible Skins for Morphing Aircraft Structures
Source of Support: Air Force Office of Scientific Research – AFOSR (sub-task under project entitled
Compliant Frame: A New Paradigm to Enable Reconfigurable Aircraft Structures)
Period Covered: 05/01/05 - 12/31/05
Award Amount: $100,000 Total (candidate’s share 85%), Co-PI with G. Lesieutre and M. Frecker.
Project Title: Active Control for Aeroelastic/ Aeromechanical Stability Augmentation
of Soft-Inplane Tiltrotors
Source of Support: Center for Rotorcraft Innovation (CRI)
Period Covered: 01/01/06 - 12/31/08
Award Amount: $150,000 Total, PI (100%)
Project Title: Passive Design Optimization for Aeroelastic/Aeromechanical Stability
Augmentation of Soft-Inplane Tiltrotors
Source of Support: Bell Helicopter Textron, Inc.
Period Covered: 01/01/06 – 12/30/08
Award Amount: $150,000 Total, PI (100%)
Project Title: Variable-Span Compact Rotors for Sea-Based Missions
Source of Support: Office of Naval Research (ONR), part of the Penn State program Innovative Technologies for Enhanced Safety, Survivability, and Performance of Naval Rotorcraft
Period Covered: 01/01/06 - 12/31/06
Award Amount: $50,000 Total, PI (100% - figure represents candidate’s portion of ONR program funds)
Project Title: (a) Shape Memory Alloy (SMA) Cellular Honeycomb based Crashworthy Structures
(b) Performance, Vibration and Noise Benefits of Variable-RPM Rotors
Source of Support: Office of Naval Research (ONR), part of the Penn State program Innovative Technologies for Enhanced Safety, Survivability, and Performance of Naval Rotorcraft
Period Covered: 01/01/07 - 12/31/09
Award Amount: $381,060 Total, PI (100% - figure represents candidate’s portion of ONR program funds)
Project Title: Miniature Trailing-Edge Effectors (Active Gurneys) for Rotor
Performance and Aeromechanics
Source of Support: National Rotorcraft Technology Center.
(under the Penn State Vertical Lift Research Center of Excellence program)
Period Covered: 07/01/06 - 06/30/11
Award Amount: Approx. $ 80,000 per year (100%, figure represents candidate’s share of funding)
Project Title: Flex-Skins Using Cellular Cores
Source of Support: Air Force Office of Scientific Research (AFOSR), Phase I STTR with
NextGen Aeronautics, Inc.
Period Covered: 09/18/06 - 06/15/07
Award Amount: $36,638 Total, PI (100%)
Project Title: Flex-Skins Using Cellular Cores
Source of Support: Air Force Office of Scientific Research (AFOSR), Phase II STTR with
NextGen Aeronautics, Inc.
Period Covered: 08/01/07 - 07/31/09
Award Amount: $250,000 Total, PI (100%)
Project Title: Application of Geometric Morphing to UUV Design
Source of Support: Penn State Applied Research Lab (Exploratory and Foundational Support Program)
Period Covered: 09/01/06 - 08/31/09
Award Amount: $150,000 Total, Co-PI with Dr. Timothy Miller (50%)
Doctoral Students: graduation date
Askari Badre-Alam 12/00 at Lord Corp, Cary, NC, co-advised with K. W. Wang (ME)
Martin Sekula 08/02 at NASA LaRC, Hampton, VA
Phuriwat Anusonti-Inthra 08/02 at National Institute of Aerospace, Hampton, VA
Lionel Tauszig 08/02 at Agusta, Philadelphia, PA
Eric Hathaway 08/05 at Boeing Helicopters, Philadelphia, PA
Lynn Byers 08/06 at United States Military Academy, West Point, NY
Brendon Malovrh (in progress) at NASA LaRC since 06/05
Jinho Paik (in progress)
Kingnide Olympio (in progress)
Eui-Sung Bae (in progress)
Bilim Atli (in progress)
Terry Johnson (in progress) co-advised with M. Frecker
Seung-Pil Kim (in progress)
Masters Students: graduation date
David Wolons 12/97
Duk Park 12/97 (M.Eng.)
Phuriwat Anusonti-Inthra 08/98
Lionel Tauszig 08/98
Martin Sekula 12/98
Kathleen Hufnagel 12/98 co-advised with G. Lesieutre
Sameer Marathe 05/99 co-advised with K. W. Wang (ME)
Eric Hathaway 08/99
Gautier Chapuis 12/99
Brendon Malovrh 05/00
Todd Ulrich 12/01 co-advised with K. W. Wang (ME)
Brian Munsky 08/02
Roberto Sarjeant 08/02 co-advised with M. Frecker (ME)
Rupinder Singh 08/05
Appa Rao Nirakh 08/05 co-advised with S. Brennan (ME)
Andrew Nissly 12/05 co-advised with M. Frecker (ME)
Kingnide Olympio 12/06
Bilim Atli 05/07
Yuji Yoshizaki 08/07 at Mitsubishi Heavy Industries, Nagoya, since 06/05
Christopher Kroninger (in progress) at NASA LaRC since 09/06
Tushar Prabhakar (in progress) co-advised with D. K. McLaughlin
Mihir Mistry (in progress)
Jason Steiner (in progress)
Russell Ruffino (in progress) co-advised with Timothy Miller (ARL)
Jamie Bluman (in progress)
Gabriel Murray (in progress)
Alvord Marques (in progress)
Christopher Duling (in progress)
Olivier Leon (in progress)
Senior Honors Thesis: graduation date
Eric Hathaway 05/97
Brendon Malovrh 05/97
Brian Munsky 05/00
Jill Tombasco 05/05
Matthew Lewellen (EMch) 05/06
Gabriel Murray 05/07
POST-DOCTARAL RESEARCHERS MENTORED
Phuriwat Anusonti-Inthra 09/02 – 08/04
Guanglei Cui 08/04 – 05/05 (with K. Merz, PSU Chemistry Dept.)
Stephen Makinen 10/04 – 10/06
VISITING SCHOLARS HOSTED/MENTORED
Sang-Guk Kang 03/05 – 10/05 PhD student at Korea Advanced Institute of Science
and Technology (KAIST)
Julien Austruy 04/05 – 10/05 student at Institute Superior Mecanique Paris (ISMEP)
MEMBERSHIP ON GRADUATE DEGREE CANDIDATES’ COMMITTEES
Type of Type of
Student Name Degree Student Name Degree
Anna Howard Ph.D. Jonathan Keller M.S.
Christian Brackbill Ph.D. Lynn Byers M.S.
Matthew Floros Ph.D. Chad Hebert M.S.
Patricia Stevens Ph.D. Louis Centolanza M.S.
Jonathan Keller Ph.D. Christian Brackbill M.S.
Jianhua Zhang Ph.D. Matthew Floros M.S.
Hao Kang Ph.D. Jason Petrie M.S.
David Heverley (ME) Ph.D. Jose Palacios M.S.
Yanning Liu (ME) Ph.D. Chris Hennes M.S.
Louis Centolanza Ph.D. Justin Shirey M.S.
Deepak Ramrakhyani Ph.D.
Nilesh Sahani Ph.D.
Jun-Sik Kim Ph.D.
Hsuan Chen Ph.D.
Smita Bharati (ME) Ph.D.
Haiyu Zhao (ME) Ph.D.
Jose Palacios Ph.D.
Chris Hennes Ph.D.
Sreeni Narayan Nampy Ph.D.
Götz Bramesfeld Ph.D.RECORD OF TEACHING
Course Enroll- Course
Semester No. Sec. Cr. Title ment Assistance
Spr 96 302 1 3 Aerospace Structures II 39 ½ TA
Spr 96 402B 2 2 Aircraft Design (V/STOL) 5 (with E. C. Smith)
Fall 96 504 1 3 Aerodynamics of V/STOL Aircraft 19 None
Spr 97 302 1 3 Aerospace Structures II 48 ¼ TA + TI*
Spr 97 597F 1 3 Smart Structures** 12 None
Fall 97 407/504 1 3 Aerodynamics of V/STOL Aircraft 8/8 None
Fall 97 402A 2 2 Aircraft Design (V/STOL) 5 None
Spr 98 302 1 3 Aerospace Structures II 45 ½ TA + TI*
Fall 98 407/504 1 3 Aerodynamics of V/STOL Aircraft 12/2 None
Spr 99 302 1 3 Aerospace Structures II 49 TI*
Spr 99 597F 1 3 Smart Structures 16 None
Spr 00 302 1 3 Aerospace Structures II 54 ½ TA + TI*
Spr 00 497G/ME455 1 3 Classical and Modern Controls 8/15 ½ TA
Fall 00 597F 1 3 Smart Structures 14 None
Spr 01 506 1 3 Helicopter Dynamics 10 None
Fall 01 497G/ ME455 1 3 Classical and Modern Control 3/20 ½ TA
Spr 02 302 1 3 Aerospace Structures II 74 ½ TA
Fall 02 ----------------------------------- on sabbatical leave of absence ------------------------------------
Spr 03 ----------------------------------- on sabbatical leave of absence ------------------------------------
Fall 03 597F 1 3 Smart Structures 12 None
Spr 04 302 1 3 Aerospace Structures II 83 ½ TA
Fall 04 407/504 1 3 Aerodynamics of V/STOL Aircraft 7/2 None
Spr 05 302 1 3 Aerospace Structures II 85 ½ TA + TI*
Spr 05 506 1 3 Helicopter Dynamics 7 None
Fall 05 597F 1 3 Smart Structures 10 None
Spr 06 302 1 3 Aerospace Structures II 90 ½ TA
RECORD OF TEACHING (CONTD.)
Fall 06 301 1 3 Aerospace Structures 90 ½ TA
Spr 07 506 1 3 Helicopter Dynamics 9 None
Fall 07 597F 1 3 Smart Structures 14 None
Fall 07 301 1 3 Aerospace Structures 95 (with G. Lesieutre)
½ TA
* undergraduate teaching intern.
** new course developed by candidate.
DEPARTMENTAL SERVICE
in teaching Engineering Mechanics service courses (EMCH 11, 12, 13). Spring-Summer 1996.
COLLEGE SERVICE
Fall 2007 onward.
UNIVERSITY SERVICE
¥ FTCAP = First-Year Testing, Counseling and Advising Program
PROFESSIONAL AFFILIATION
American Helicopter Society, 1991 onward.
American Institute of Aeronautics and Astronautics, 1994 onward (Senior Member since 2002).
PROFESSIONAL SERVICE
American Helicopter Society, Aircraft Design Technical Committee, Member from 1996 onward.
Secretary, 1997, Deputy Chairman, 1998 – 1999, Chairman, 1999 – 2003.
American Helicopter Society, Dynamics Technical Committee, Member from 2002 onward.
Deputy Chairman, 2006 – onward.
American Institute of Aeronautics and Astronautics, Adaptive Structures Technical Committee, Member from April 2006 onward.
SPIE Smart Materials and Structures Conference – Damping and Isolation Program Committee,
Fall 2004 onward.
SPIE Smart Materials and Structures Conference – Smart Structures Program Committee,
Fall 2006 onward.
Session Co-Chair (Rotorcraft Session) at the 39th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference, Long Beach, California, April 1998.
Session Co-Chair (Adaptive Rotorcraft Structures I Session) at the 1999 Adaptive Structures Forum, St. Louis, Missouri, April 1999.
Session Co-Chair (Dynamics Session) at the 62nd Annual Forum of the American Helicopter Society, Phoenix, Arizona, May 2006.
Session Chair at the 2007 SPIE Conference on Smart Structures and Materials, San Diego, California, March 2007.
Session Chair at the 15th AIAA/ASME/AHS Adaptive Structures Conference, Honolulu, Hawaii, April 2007.
Session Chair at the AHS International/Korean Society for Aeronautical and Space Sciences International Forum on Rotorcraft Multidisciplinary Technology, Seoul, Korea, October 2007.
2008 American Helicopter Society Annual Forum Deputy Technical Chair
American Helicopter Society Technical Council Member, May 2007 onward
Organizing Committee, 4th ARO Workshop on Smart Structures, Penn State University, Aug. 1999.
Guest Editor, Smart Materials and Structures Journal, Special Issue on Rotorcraft Applications.
February 2001.
Associate Editor, Journal of Intelligent Material Systems and Structures, March 2004 onward.
PROFESSIONAL SERVICE (PAPER/PROPOSAL REVIEW ACTIVITIES)
Paper Reviewer for the following journals:
Journal of the American Helicopter Society.
AIAA Journal.
Journal of Aircraft.
Smart Materials and Structures.
Journal of Intelligent Material Systems and Structures.
Journal of Sound and Vibration.
Aeronautical Engineering.
Journal of Aerospace Engineering.
ASME Journal of Vibration and Acoustics.
ASME Journal of Dynamic Systems, Measurement, and Control.
ASME Journal of Engineering Materials and Technology.
ASME Journal of Mechanical Design.
Proposal Reviewer for the following agencies:
US Army Research Office. National Science Foundation.
American Helicopter Society
2007 Evaluator of Lichten Award nominee papers and AHS Forum Gessow Award nominee papers
AWARDS AND HONORS
- US Army Rotorcraft Fellowship (1993 – 1995).
- American Helicopter Society Vertical Flight Foundation Fellowship (1994).
- General Electric Foundation Scholarship (1994 – 1995).
- 2nd Place in the American Helicopter Society Student Design Competition, May 1996,
Team of five students was supervised by the candidate (jointly with E. C. Smith).
- US Army Research Office Young Investigator Award, June 1997.
- 1998 American Helicopter Society Francois Xavier Bagnoud Award for Outstanding
Contributions to Vertical Flight Technology by a society member under the age of 35.
- 2nd Place in the American Helicopter Society Student Design Competition, May 1998,
Team of five students was supervised by the candidate (jointly with E. C. Smith).
- Best paper in Aircraft Design at the American Helicopter Society Annual Forum in 2002.
- 2007 Popular Mechanics Breakthrough Award for a Centrifugal Force Actuated
Variable Span Morphing Helicopter Rotor.
http://www.popularmechanics.com/technology/industry/4224761.html?series=37
INVITED SPEAKER
- Boeing Helicopters 02/96 Rotor Stability Augmentation via Multi-Functional
Semi-Active and Active-Passive Hybrid Systems
- NASA Langley 03/96 Concepts for Low-Vibration, Low-Noise Rotors
Research Center
- McDonnell Douglas 10/96 An Azimuthally Variable Speed Rotor
Helicopter Corporation
- United Technologies 12/96 Use of Aeroelastic Couplings and Multi-Point Optimization
Sikorsky Aircraft to Design Damperless Aeromechanically Stable Helicopters
- United Technologies 12/96 Active Aeromechanical Stability Augmention using
Research Center Fuselage State Feedback
- Army Research Office 10/98 Novel Structural Damping Concepts and Materials
- Paulstra, France 10/99 Semi-Active Rotor Vibration Reduction
- Lord Corp., Erie, PA 03/01 Helicopter Vibration Reduction using Controllable Stiffness/
Damping Devices at the Rotor Hub
- Bell Helicopters Textron 07/01 PSU Research on Tiltrotor Aircraft and Active Control for
Stability Augmentation
- Lord Corp., Cary, NC 08/01 Helicopter Vibration Reduction using Controllable Stiffness/
Damping Devices at the Rotor Hub
- Quinetik/DERA 10/02 Helicopter Vibration and Noise Reduction, Adaptive Rotors
Franburough, UK
- Eurocopter, Munich 04/03 Noise and Vibration Reduction of Helicopter Rotors
Germany
- EADS, Munich 04/03 Smart Structures Applications for Vibration Reduction
Germany and Morphing
- DLR, Braunschweig 04/03 Analysis of Helicopter Blade-Vortex Interaction Noise with
Germany Flight Path or Attitude Modification
- ISMCM-CESTI, Paris, 05/03 Smart Materials and Structures: Some Applications and
France Results
- CNAM, Paris, France 05/03 Optimal Design of a Smart Conformable Rotor Airfoil
- ONERA, Paris, France 06/03 Reduction in Blade- Vortex Interaction (BVI) Noise due
Individual Blade Control (IBC)
- ONERA, Paris, France 06/03 Smart Materials and Structures: Some Applications and
Results
- NextGen Aeronautics 04/05 A Variable Span Morphing Rotor
Torrance, California
INVITED SPEAKER, CONTD.
- Lord Corp, Erie, PA 04/05 Rotor Lag Damping using a Radial Absorber and Coriolis Coupling
- Wkshp on Damping of 05/05 Maximizing Effectiveness of SMAs for Structural Damping
SMAs, Metz, France Augmentation
- Boeing Helicopters 07/05 High-Speed Rotors, Segmented Rotors, and Morphing
Rotors using Bi-Stable Mechanisms
- NASA Ames Res. Ctr. 08/05 High-Speed Rotors, Segmented Rotors, and Morphing
Rotors using Bi-Stable Mechanisms
- DARPA Wkshp on 08/05 Flexible Skins for Morphing Aircraft using Honeycomb Cores
Symbiotic Structures, VA
- Barry Controls Aerospace 02/07 Rotorcraft Dynamics Research
Boston, MA
- Army Research Labs 05/07 Rotorcraft Dynamics Research
Langley, VA
- Air Force Research Labs 05/07 Cellular Materials – A World of Possibilities
Wright-Patt Air Force Base,
Dayton, OH
- Cornerstone Research 05/07 Research on Morphing Aircraft and Rotorcraft
Group, Dayton, Ohio
- Konkuk University, Seoul 10/07 Research in Helicopter Aerodynamics
Korea
- Seoul National University, 10/07 Flexible Skins for Morphing Aircraft
Seoul, Korea