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Joseph F. Horn

Professor of Aerospace Engineering

Penn State University

         231C Hammond Building                                                       Phone: (814) 865-6434

            Department of Aerospace Engineering                               Fax: (814) 865-7092

            The Pennsylvania State University                                      Email: joehorn@psu.edu

            University Park, PA 16802                                                   http://www.personal.psu.edu/jfh19

 

                                                                        For more details see my Curriculum Vitae             

 

Research Interests:

My research interests are primarily in the areas of flight control design, flight dynamics, modeling and simulation, and handling qualities, with specific emphasis on rotorcraft applications.  Many of my research projects are affiliated with the Penn State Vertical Lift Research Center of Excellence (VLRCOE).  I am a deputy director of the Penn State VLRCOE, which has been renewed every 5 years since 1996.

 

Current or recent research topics:

·       Flight control design and optimization for compound rotorcraft and rotorcraft with variable RPM.

·       Path planning for optimal search and surveillance on autonomous Unmanned Aerial Vehicles (UAV)

·       Autonomous autorotation for UAV Rotorcraft

·       Modeling and simulation and control design for ducted fan aircraft.

·       Design of control systems and cueing systems for carefree maneuvering and damage mitigation.

·       Autonomous Multi-lift Systems

·       Advanced Response Types and Cueing Systems for Naval Operations

·       Control Augmentation of Helicopters with External Loads Using Cable Angle Feedback

·       Modeling and simulation and flight control design for shipboard rotorcraft and rotorcraft operating in turbulent environments

·       Autonomous landing of rotorcraft on ships in high sea states

·       Fully-coupled simulations of flight dynamics and flow fields for rotorcraft operating in turbulent ship airwakes

 

Research sponsors include: National Rotorcraft Technology Center and Vertical Lift Consortium (U.S. Army), NASA, Office of Naval Research, Bell Helicopter Textron.  I have also teamed with several companies on government funded research programs including: Sikorsky Aircraft, Boeing Helicopters Division, Piasecki Aircraft Corporation, Continuum Dynamics Incorporated, Barron Associates, Technical Data Associates, and Combustion Research and Flow Technology.

 

Teaching:

My teaching focus has been in the areas of flight dynamics, stability and control, and automatic control systems.  Recently I have also taught the Helicopter Design course. Courses that I have taught at Penn State include the following:

AERSP 413 Aircraft Stability and Control: 2000-2007, 2009-2013.

AERSP 518 Dynamics and Control of Aerospace Vehicles: 2005, 2007, 2009, 2011, and 2013.

AERSP 597B (formerly AERSP 597J) Helicopter Stability and Control:  2002, 2003, 2008, 2010, 2012, and 2014.

AERSP 402A/B, Section 2: Preliminary/Detailed Design of Helicopters: 2009-2014. PSU Teams Win 1st place in Undergraduate Division American Helicopter Student Design Competition 2010 and 2013, 2nd place 2011 and 2012. AHS SDC

AERSP 460 (formerly AERSP 497G) Aerospace Control Systems: 2001-2005.

AERSP 304 Dynamics and Control of Aerospace Systems: 2002, 2003, 2004, and 2008.

AERSP 306 Aeronautics: 2006

AERSP 497D New Course in 2013 Autonomous Underwater Vehicles: Co-taught with Jack Langelaan and Applied Research Laboratory (Lee culver is coordinator at ARL).  Plan is to participate in AUVSI RoboSub competition. AUVSI RoboSub

 

Education:

Ph.D. in Aerospace Engineering, Georgia Institute of Technology, June 1999.

M.S. in Mechanical and Aerospace Engineering, University of Virginia, August 1992.

B.S. in Aerospace Engineering, University of Virginia, May 1990.

 

Experience:

Professor, Penn State University, July 2014 to present.

Associate Professor, Penn State University, July 2006 to June 2014.

Associate Director of the Penn State Vertical Lift Research Center of Excellence (VLRCOE), July 2006 to present.

Assistant Professor, Penn State University, July 2000 to June 2006.

Senior Engineer, Sikorsky Aircraft Corporation, Electronic Flight Controls/Simulation, Handling Qualities Group, Stratford, CT. July 1999 to July 2000.

Graduate Research Assistant, Georgia Tech., School of Aerospace, September 1996 to June 1999.

Project Engineer, Piasecki Aircraft Corporation, Essington, PA. August 1992 to August 1996.

 

Affiliations:

American Helicopter Society (AHS):

Technical Chair of the 68th American Helicopter Society Annual Forum to be held in Fort Worth, Texas, May 2012 AHS Forum

Member of the Handling Qualities Technical Committee since 2004, Chair 2009-2010, Session Chair 2008-2009, Deputy Session Chair 2007-2008

Associate Editor of the Journal of the American Helicopter Society, since 2010. 

 

Associate Fellow of the American Institute of Aeronautics and Astronautics (AIAA)

 

Facilities:

VLRCOE Rotorcraft Simulation Facility

·       Uses original XV-15 cab donated to PSU by Bell Helicopter Textron Inc.

·       3-Channel 180 deg Field of View  Display

·       FlightLab and GENHEL Models

·       New control loading system from Simulation and Controls Technology, SCT, installed in 2012.

 

 

ARL-PSU UAV Lab

·       Super Flyin’ King and Sig Kadet Aircraft

·       Piccolo Autopilot Systems

·       Single Board PC for Research Controllers

 

Rotary-Wing UAV’s

·       Adaptive Flight Incorporated Hornet Mini UAV

·       Autonomous Autorotation

·       Autonomous Multi-Lift

 

Recent Publications:

Articles in Archival Journals (since 2006)

Krishnamurthi, J. and Horn J.F., “Helicopter Slung Load Control using Lagged Cable Angle Feedback,” Journal of the American Helicopter Society. In Press 2014.

Sonti, S., Horn, J.F., Keller, R., and Ray, A., "Identification of Instabilities in Rotorcraft Systems," ASME Journal of Dynamic Systems, Measurement and Control. In Press 2014.

Cooper, J.C., Horn, J.F., Yomchinda, T., and O’Neill, E.P., “Handling Qualities Evaluation of an Adaptive Disturbance Compensation System for Ship-based Rotorcraft,” Journal of the American Helicopter Society.  In Press 2013.

Horn, J.F., Guo, W., and Ozdemir, G.T., “Use of Rotor State Feedback to Improve Closed Loop Stability and Handling Qualities,” Journal of the American Helicopter Society, Vol. 57, (2), April 2012, pp.1-10.

Horn, J.F., Schmidt, E.M., Geiger, B.R., and Deangelo, M.P., “Neural Network Based Trajectory Optimization for Unmanned Aerial Vehicles,” AIAA Journal of Guidance, Control, and Dynamics, Vol. 35, (2), April 2012, pp. 548-562.

Horn, J.F., Schmidt, E.M., Geiger, B.R., and Deangelo, M.P., “Neural Network Based Trajectory Optimization for Unmanned Aerial Vehicles,” AIAA Journal of Guidance, Control, and Dynamics. In press 2011.

Geiger, B.R., Horn, J.F., Sinsley, G.L., Ross, J.A., and Long, L.N., “Flight Testing a Real Time Implementation of a UAV Path Planner Using Direct Collocation,” AIAA Journal of Guidance, Control, and Dynamics, Vol. 31, (6), November-December 2008, pp.1575-1586.

Yasar, M., Ray, A., and Horn, J.F., “A Comprehensive Control Strategy for Integrated Flight/Propulsion Systems,” Journal of Aerospace Engineering – Proceedings of the Institute of Mechanical Engineers Part G, Vol. 222, (6), June 2008, pp. 843-859.

Miller, J.A., Minear, P.D., Neissner, A.F., DeLullo, A.M., Geiger, B.R., Long, L.N., and Horn, J.F., “Intelligent Unmanned Air Vehicle Flight Systems,” AIAA Journal of Computing, Information, and Communications, Vol. 4, May 2007.

Sahani, N. A., Horn, J. F., Jeram, G. J., and Prasad, J. V. R., “A Hub Moment Limit Protection System Using Neural Network Prediction,” Journal of the American Helicopter Society, Vol. 51, (4), October 2006, pp. 331-340.

Sahasrabudhe, V., Horn, J.F., Sahani, N., Faynberg, A., and Spaulding, R. “Simulation Investigation of a Comprehensive Collective-Axis Tactile Cueing System.” Journal of the American Helicopter Society, Vol. 51, (3), July 2006, pp. 215-224.

Tolani, D.K., Ray, A., and Horn, J.F., “Integrated decision and control of human-engineered complex systems,” International Journal of General Systems, Vol. 35, (3), June 2006.

Horn, J.F., Bridges, D.O., Wachspress, D.A, and Rani, S.L., “Implementation of a Free-Vortex Wake Model in Real-Time Simulation of Rotorcraft,” AIAA Journal of Computing, Information, and Communications, Vol. 3, (3), March 2006.

Chen, H.N., Brentner, K.S., Lopes, L.V., and Horn, J.F., “An Initial Analysis of Transient Noise in Rotorcraft Maneuver Flight.” International Journal of Aeroacoustics, Vol. 5, (2), April 2006.

Sahani, N. and Horn, J.F., “Adaptive Model Inversion Control of a Helicopter with Structural Load Limiting.”  AIAA Journal of Guidance, Control, and Dynamics, Vol. 29, (2), March-April 2006.

Conference Papers (since 2009)

Thorsen, A.T., Horn, J.F., and Ozdemir, G.T., “Optimizing Control of a Compound Rotorcraft in Quasi-Steady Maneuvers,” Fifth Decennial AHS Aeromechanics Specialists’ Conference, San Francisco, California, January 22-24, 2014.

Thaiss, C.J., McColl, C.C., Horn, J., Keller, E., Ray, A., Semidey, R., and Phan, N., “Rotorcraft Real Time Damage Alleviation through Load Limiting Control,” AIAA/ASMe/ASCE/AHS/SC Structures, Structural Dynamics, and Materials Conference, National Harbor, MD, January 13-17, 2014.

Li, Z., Horn, J.F., and Langelaan, J.W., “Coordinated Transport of a Slung Load by a Team of Autonomous Rotorcraft,” AIAA Guidance, Navigation, and Control Conference, National Harbor, MD, January 13-17, 2014.

Sonti, S., Horn, J.F., Keller, R., and Ray, A., “Identification of Instabilities in Rotorcraft Systems,” Proceedings of the ASME Dynamic Systems and Controls Conference, Palo Alto, CA, October 21-23 2013.

Ozdemir, G.T., Horn, J.F., and Thorsen, A.T., “In-Flight Multi-Variable Optimization of Redundant Controls on a Compound Rotorcraft,” Proceedings of the AIAA Guidance, Navigation, and Control Conference, Boston, MA, August 19-22, 2013.

Rigsby, J., Hung, C.H., and Horn, J.F., “Design and Evaluation of a Robust Feedback Controller for Helicopters Handling Externally Slung Loads,” Proceedings of the American Helicopter Society 69th Annual Forum, Phoenix, AZ, May 2013.

Krishnamurthi, J. and Horn J.F., “Helicopter Slung Load Control using Lagged Cable Angle Feedback,” Proceedings of the American Helicopter Society 69th Annual Forum, Phoenix, AZ, May 2013.

Song, Y., Horn, J.F., Li, Z., and Langelaan, J.W., “Modeling, Simulation, and Non-linear Control of a Rotorcraft Multi-Lift System,” Proceedings of the American Helicopter Society 69th Annual Forum, Phoenix, AZ, May 2013.

Barron, H.M., Brentner, K.S., Horn, J.F., Ozdemir, G.T., and Thorsen, A.T., “Acoustic Analysis of Compound Helicopters with Trim Variations,” Proceedings of the American Helicopter Society 69th Annual Forum, Phoenix, AZ, May 2013.

Yomchinda, T., Grande, N., Horn, J.F., and Langelann, J.W., “Development and Testing of an Autonomous Autorotation System,” Proceedings of the American Helicopter Society International Specialists’ Meeting on Unmanned Rotorcraft, Scottsdale, AZ, January 22-24, 2013.

DeAngelo, M.P. and Horn J.F., “Optimal Search Strategies for Unmanned Aerial Vehicles,” Proceedings of the AIAA Guidance, Navigation, and Control Conference, Minneapolis, MN, August 13-16, 2012.

Sahasrabudhe, V., Fallon, M., Blanken, C., Hayes, P.M., Kashawlic, B., Labus, G., Grill, I., Campbell, K., Shue, J., Schillings, J., and Horn, J.F., “Transformational Vehicle Management Systems,”  Proceedings of the American Helicopter Society 68th Annual Forum, Ft. Worth, TX, May 2012.

Ozdemir, G.T. and Horn, J.F., “Simulation Analysis of a Flight Control Law with IN-Flight Performance Optimization,” Proceedings of the American Helicopter Society 68th Annual Forum, Ft. Worth, TX, May 2012.

Yomchinda, T., Horn, J.F., and Langelaan, J.W., “Autonomous Control and Path Planning for Autorotation of Unmanned Helicopters,” Proceedings of the American Helicopter Society 68th Annual Forum, Ft. Worth, TX, May 2012.

Hayes, P.M., Grill, I., and Horn, J.F., "Gust Rejection Using Active Trailing Edge Flaps," Proceedings of the American Helicopter Society 68th Annual Forum, Ft. Worth, TX, May 2012.

Yomchinda, T., Horn, J.F., Langelaan, J.W., “Flight Path Planning for Descent-phase Helicopter Autorotation,” Proceedings of the AIAA Guidance, Navigation, and Control Conference, Portland, OR, August 8-11, 2011.

Cooper, J.C., Horn, J.F., Schierman, J., Yomchinda, T. and O’Neill, E.P., “Handling Qualities Evaluation of an Adaptive Disturbance Compensation System for Ship-based Rotorcraft,” Proceedings of the American Helicopter Society 67th Annual Forum, Virginia Beach, VA, May 3-5, 2011.   Best Paper in Modeling and Simulation Session

Keller, J.D., McKillip, R.M, Horn, J.F., and Yomchinda, T.  “Active Flight Control and Appliqué Inceptor Concepts for Autorotation Performance Enhancement,” Proceedings of the American Helicopter Society 67th Annual Forum, Virginia Beach, VA, May 3-5, 2011.

Geiger, B.R., Piasecki, F.W., Horn, J.F., Schifferle, P., and Lotterio, M., “Challenges of Flight Control in a Compound Helicopter,” Proceedings of the International Powered Lift Conference, Philadelphia, PA, October 5-7, 2010.

Schmidt, E.M., Horn, J.F., Geiger, B.R., “Use of Neural Network Approximation for Trajectory Optimization of Unmanned Aerial Vehicles with Gimbaled Cameras,” Proceedings of the AIAA Guidance, Navigation, and Control Conference, Toronto, Canada, August 2-5, 2010.

Cooper, J.C., Schierman, J., and Horn, J.F., “Robust Adaptive Disturbance Compensation for Ship-based Rotorcraft,” Proceedings of the AIAA Guidance, Navigation, and Control Conference, Toronto, Canada, August 2-5, 2010.

Horn, J.F., Guo, W., and Ozdemir, G.T., “Use of Rotor State Feedback to Improve Closed Loop Stability and Handling Qualities,” Proceedings of the American Helicopter Society 66th Annual Forum, Phoenix, AZ, May 11-13, 2010.

Yomchinda, T. and Horn, J.F. “Handling Qualities Assessment of a Model Inversion Controller for a Tiltrotor Aircraft,” Proceedings of the 3rd International Basic Research Conference on Rotorcraft Technology, Nanjing, China, October 14-16, 2009.

Horn. J.F., Guo, W., and Ozdemir, G. “Implementation of Variable RPM in Helicopter Flight Control Laws,” Proceedings of the 3rd International Basic Research Conference on Rotorcraft Technology, Nanjing, China, October 14-16, 2009.

Geiger, B.R., Schmidt, E.M, and Horn, J.F., “Use of Neural Network Approximation in Multiple-Unmanned Aerial Vehicle Trajectory Optimization” Proceedings of the AIAA Guidance, Navigation, and Control Conference, Chicago, IL, August 10-13, 2009.

Ozdemir, G.T., and Horn, J.F. “Control of Ducted Fan Aircraft using Redundant Effectors,” Proceedings of the AIAA Atmospheric Flight Mechanics Conference, Chicago, IL, August 10-13, 2009.

Guo, Wei and Horn, J.F., “Rotor State Feedback Control for Rotorcraft with Variable Rotor Speed,” Proceedings of the AIAA Guidance, Navigation, and Control Conference, Chicago, IL, August 10-13, 2009.

Yomchinda, T., and Horn, J.F. “Integrated Flight Control Design and Handling Qualities Analysis for a Tilt Rotor Aircraft,” Proceedings of the AIAA Atmospheric Flight Mechanics Conference, Chicago, IL, August 10-13, 2009.

Guo, Wei and Horn, J.F., “Helicopter Flight Control with Variable Rotor Speed and Torque Limiting,” Proceedings of the American Helicopter Society 65th Annual Forum, Grapevine, Texas, May 27-29, 2009.

Horn, J.F., Sparbanie, S.M., Cooper J., and Schierman, J., “On-Line Identification of Ship Airwake Disturbances on Rotorcraft,” Proceedings of the American Helicopter Society 65th Annual Forum, Grapevine, Texas, May 27-29, 2009.

Horn, J.F., Sparbanie, S.M., Geiger, D.H., and Sahasrabudhe, V.A Stochastic Model of Unsteady Ship Airwake Disturbances on Rotorcraft,” Proceedings of the American Helicopter Society 65th Annual Forum, Grapevine, Texas, May 27-29, 2009.

Horn, J.F., and Geiger, B.R. “Neural Network Based Trajectory Optimization for Unmanned Aerial Vehicles,” Proceedings of the AIAA Aerospace Sciences Meeting, Orlando, FL, January 2009.