• Home
• Personal info
• Teaching
• Research
• Publications
  • Journal < 2002
  • Journal ≥ 2003
  • Conference < 2003
  • Conference ≥ 2004
• Other stuff
• Contact me

Conference publications (through 2003)

• Celi, R., and Friedmann, P.P., "Rotor Blade Aeroelasticity in Forward Flight with an Implicit Aerodynamic Formulation," Paper AIAA-87-0921-CP, Proceedings of the AIAA/ASME/ASCE/AHS 28th Structures, Structural Dynamics and Materials Conference, Monterey, California, April 1987, part 2B, pp.730-742.
• Celi, R., and Friedmann, P.P., "Aeroelastic Modeling of Swept Tip Rotor Blades Using Finite Elements," Proceedings of the 43rd Annual Forum of the American Helicopter Society, St.Louis, Missouri, May 1987, pp.257-270.
• Celi, R., and Friedmann, P.P., "Structural Optimization With Aeroelastic Constraints of Rotor Blades With Straight and Swept Tips," Paper AIAA-88-2297-CP, Proceedings of the AIAA/ASME/ASCE/AHS 29th Structures, Structural Dynamics and Materials Conference, Williamsburg, Virginia, April 1988, pp. 668-680.
• Celi, R., "Effect of Hingeless Rotor Aeroelasticity on Helicopter Trim and Longitudinal Stability Using Quasilinearization," Paper AIAA-CP-88-4366 AIAA Atmospheric Flight Mechanics Conference, Minneapolis, Minnesota, August 1988.
• Celi, R., "Aeroelastic Effects on Stability and Control of Hingeless Rotor Helicopters." Paper No.76, Fourteenth European Rotorcraft Forum, Milan, Italy, September 1988.
• Friedmann, P.P., and Celi, R., "Structural Optimization of Rotor Blades With Straight and Swept Tips Subject to Aeroelastic Constraints," NASA Conference Publication 3031, Recent Advances in Multidisciplinary Analysis and Optimization, Hampton, Virginia, September 1988, pp.145-162.
• Celi, R., "Optimum Design of Helicopter Rotors for Longitudinal Handling Qualities Improvement in Forward Flight," Paper AIAA-89-1270-CP, Proceedings of the AIAA/ASME/ASCE/AHS 30th Structures, Structural Dynamics and Materials Conference, Mobile, Alabama, April 1989, Vol.II, pp.959-967.
• Celi, R., "Hingeless Rotor Dynamics in Coordinated Turns," Paper AIAA-90-1117-CP, Proceedings of the AIAA/ASME/ASCE/AHS 31th Structures, Structural Dynamics and Materials Conference, Long Beach, California, 2-4 April 1990, Part 3, pp. 1679-1689.
• Kim, F.D., Celi, R., and Tischler, M.B., "Formulation and Validation of High-Order Linearized Models of Helicopter Flight Mechanics," Proceedings of the 46th Annual Forum of the American Helicopter Society, Washington, D.C., May 1990, pp. 995-1002.
• Celi, R., "Steady Stall and Compressibility Effects on Hingeless Rotor Aeroelasticity in High-g Turns," Proceedings of the Sixteenth European Rotorcraft Forum, Glasgow, Scotland, September 1990.
• Kim, F.D., Celi, R., and Tischler, M.B., "High Order State Space Simulation Models of Helicopter Flight Mechanics," Proceedings of the Sixteenth European Rotorcraft Forum, Glasgow, Scotland, September 1990.
• Celi, R., "Helicopter Rotor Blade Aeroelasticity in Forward Flight with an Implicit Structural Formulation," Paper AIAA-91-1219-CP, Proceedings of the AIAA/ASME/ASCE/AHS 32nd Structures, Structural Dynamics and Materials Conference, Baltimore, Maryland, April 1991, Part 3, pp. 2051-2058.
• Ockier, C., and Celi, R., "Dynamics and Aeroelasticity of a Coupled Rotor-Propulsion System in Hover," Paper AIAA-91-1220-CP, Proceedings of the AIAA/ASME/ASCE/AHS 32nd Structures, Structural Dynamics and Materials Conference, Baltimore, Maryland, April 1991, Part 3, pp. 2058-2070.
• Kim, F.D., Celi, R., and Tischler, M.B., "Forward Flight Trim Calculation and Frequency Response Validation of a High-Order Helicopter Simulation Model," Proceedings of the 47th Annual Forum of the American Helicopter Society, Phoenix, Arizona, May 1991, pp. 155-168.
• Spence, A., and Celi, R., "Coupled Rotor-Fuselage Dynamics in Turning Flight," Proceedings of the AIAA Dynamics Specialist Conference, Dallas, Texas, April 1992, pp. 292-301.
• Ingle, S., and Celi, R., "Effects of Higher Order Dynamics on Helicopter Flight Control Law Design," Proceedings of the 48th Annual Forum of the American Helicopter Society, Washington, D.C., June 1992, pp. 737-750.
• Spence, A., and Celi, R., "Efficient Sensitivity Analysis for Rotary-Wing Aeromechanical Problems," Proceedings of the AIAA/ASME/ASCE/AHS 34th Structures, Structural Dynamics and Materials Conference, La Jolla, California, April 1993, pp. 3012-3022.
• Turnour, S. R., and Celi, R., "Effects of Blade Flexibility on Helicopter Stability and Frequency Response," Proceedings of the Nineteenth European Rotorcraft Forum, Cernobbio, Italy, September 1993.
• Celi, R., and Kim, F.D., "Stability and Frequency Response Simulation of an Articulated Rotor Helicopter in Turning Flight," Proceedings of the Nineteenth European Rotorcraft Forum, Cernobbio, Italy, September 1993.
• Spence, A., and Celi, R., "Effect of Rotor Design Parameters on Aeromechanic Stability and Flight Dynamics," Proceedings of the NASA/AHS Aeromechanics Specialists Conference, San Francisco, California, January 1994.
• Shih, I.-C., Spence, A. M., and Celi, R., "Semi-Analytical Sensitivity of Floquet Characteristic Exponents with Application to Rotary-Wing Aeroelasticity." Proceedings of the 35th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference, Hilton Head, S.C., April 1994.
• Celi, R., "Aeroelasticity of Helicopters in Maneuvering Flight." Symposium on Aeroelasticity and Fluids/Structure Interaction Problems, International Mechanical Engineering Congress and Exposition, Chicago, IL, November 1994, AD-Vol. 44, pp. 69-98.
• Jones, C. T., and Celi, R., "Determination of Rotor Damping From Simulated Data Using Frequency Domain System Identification." Proceedings of the 36th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference, New Orleans, LA, April 1995.
• Sahasrabudhe, V., Celi, R., and Tits, A., "Integrated Rotor-Flight Control System Optimization with Aeroelastic and Handling Qualities Constraints," Proceedings of the 51st Annual Forum of the American Helicopter Society, Ft. Worth, TX, May 1995, pp. 905-923.
• Jones, C. T., and Celi, R., "Frequency Response Sensitivity Functions for Helicopter System Identification," Proceedings of the AHS Northeast Region International Technical Conference, Stratford, CT, October 1995, pp. 4.70-4.87.
• Celi, R., Huang, C. Y., and Shih, I.-C., "Reconfigurable Flight Control Systems for a Tandem Rotor Helicopter,"Proceedings of the 52nd Annual Forum of the American Helicopter Society, Washington, DC, June 1996, pp. 1569-1588.
• Sahasrabudhe, V., Celi, R., and Tits, A., "Efficient Treatment of Moderate Amplitude Constraints for Handling Qualities Design Optimization," Proceedings of the 52nd Annual Forum of the American Helicopter Society, Washington, DC, June 1996, pp. 1253-1270.
• Guglieri, G., Celi, R., and Quagliotti, F., "Effect of Propulsion System Dynamics on Rotorcraft Aeromechanical Stability in Straight and Turning Flight," AGARD Flight Vehicle Integration Panel Symposium on "Advances in Rotorcraft Technology," Ottawa, Canada, May 1996.
• Huang, C., Celi, R., and Shih, I.-C., "Reconfigurable Control Designs and Flying Qualities Evalations for a CH-47," Paper AIAA-96-3745, Proccedings of the 1996 AIAA Guidance, Navigation, and Control Conference, San Diego, CA, August 1996.
• Sahasrabudhe, V., Celi, R., and Tits, A., "Improvement of Off-Design Characteristics in Integrated Rotor-Flight Control System Optimization," Proceedings of the 53rd Annual Forum of the American Helicopter Society, Virginia Beach, VA, May 1997.
• Guglieri, G., and Celi, R., "On Some Aspects of Helicopter Flight Dynamics and Handling Qualities in Steady Turns," Proceedings of the 1997 AIAA Atmospheric Flight Mechanics Conference, New Orleans, LA, August 1997.
• Celi, R., "Time-Frequency Analysis of Helicopter Noise," AHS Technical Specialists' Meeting for Rotorcraft Acoustics and Aerodynamics, Williamsburg, VA, October 1997.
• Theodore, C., and Celi, R., "Flight Dynamic Simulation of Hingeless Rotor Helicopters Including a Maneuvering Free Wake Model," Proceedings of the 54th Annual Forum of the American Helicopter Society, Washington, DC, June 1998.
• Celi, R., "Implementation of Rotary-Wing Aeromechanical Problems Using Differential-Algebraic Equation Solvers," Proceedings of the 55th Annual Forum of the American Helicopter Society, Montreal, Canada, June 1999.
• Fusato, D., Guglieri, G., and Celi, R., "Flight Dynamics of an Articulated Rotor Helicopter with an External Slung Load," Proceedings of the 55th Annual Forum of the American Helicopter Society, Montreal, Canada, June 1999.
• Celi, R., "Recent Applications of Design Optimization to Rotorcraft—A Survey," Proceedings of the 55th Annual Forum of the American Helicopter Society, Montreal, Canada, June 1999.
• Theodore, C., and Celi, R., "Prediction of the Off-Axis Response to Cyclic Pitch Using a Maneuvering Free Wake Model," Paper H9, Proceedings of the Twentyfifth European Rotorcraft Forum, Roma, Italy, September 1999.
• Celi, R., "Optimization-Based Inverse Simulation of a Helicopter Slalom Maneuver," Paper H12, Proceedings of the Twentyfifth European Rotorcraft Forum, Roma, Italy, September 1999.
• Celi, R., "Stabilization of a Blade with a Severed Pitch Link Using a Trailing Edge Flap," Paper G18, Proceedings of the Twentyfifth European Rotorcraft Forum, Roma, Italy, September 1999.
• Theodore, C., and Celi, R., "Flight Dynamic Simulation with Refined Aerodynamic and Flexible Blade Modeling," Proceedings of the 56th Annual Forum of the American Helicopter Society, Virginia Beach, VA, May 2000.
• Cheng, R. P., Theodore, C., and Celi, R., "Effects of Higher Harmonic Control on Rotor Performance," Proceedings of the 56th Annual Forum of the American Helicopter Society, Virginia Beach, VA, May 2000.
• Cheng, R. P., and Celi, R., "Optimum 2/rev Inputs for Improved Rotor Performance," Proceedings of the American Helicopter Society Northeast Region, Active Controls Technology Conference, Fairfield County, CT, October 2000.
• Ribera, M., and Celi, R., "Maneuvering Free Wake Sensitivity for Design Optimization Applications," Proceedings of the 57th Annual Forum of the American Helicopter Society, Washington, DC, May 2001.
• Fusato, D., and Celi, R., "Formulation of a Design-Oriented Helicopter Flight Dynamic Simulation Program," Proceedings of the 57th Annual Forum of the American Helicopter Society, Washington, DC, May 2001.
• Lovera, M., Colaneri, P., Celi, R., and Bittanti, S., "On the Role of Zeros in Rotorcraft Aeromechanics," Proceedings of the 58th Annual Forum of the American Helicopter Society, Montréal, Canada, June 2002.
• Fusato, D, and Celi, R., "Design Sensitivity Analysis for ADS-33 Quickness Criteria and Maneuver Loads," Proceedings of the 58th Annual Forum of the American Helicopter Society, Montréal, Canada, June 2002.
• Fusato, D, and Celi, R., "Multidisciplinary Design Optimization for Aeromechanics and Handling Qualities," Paper No. 2, Proceedings of the 28th European Rotorcraft Forum, Bristol, UK, September 2002.
• Cheng, R. P., Tischler, M.B., and Celi, R., "Development of a High-Order, Time Invariant, Linearized Model for Higher Harmonic Control," Proceedings of the 59th Annual Forum of the American Helicopter Society, Phoenix, AZ, June 2003.
• Celi, R., "Calculation of ADS-33 Quickness Parameters, with Application to Design Optimization," Proceedings of the 29th European Rotorcraft Forum, Friedrichshafen, Germany, September 2003.
• Lovera, M., Colaneri, P., Malpica, C., and Celi, R., "Closed-Loop Aeromechanical Stability Analysis for a Hingeless Rotor Helicopter With HHC or IBC," Proceedings of the 29th European Rotorcraft Forum, Friedrichshafen, Germany, September 2003.