2009 Technical Papers

Akturk, A., Shavalikul, A. and Camci, C., 2009, “PIV Measurements and Computational Study of a 5-Inch Ducted Fan for V/STOL UAV Applications, presented at the 47th AIAA Aerospace Sciences Meeting and Exhibit , AIAA paper 2009-332, 5-8 January 2009, Orlando, Florida.

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.

S. K. Lee, K. S. Brentner, F. Farassat and P. J. Morris, “Analytic Formulation and Numerical Implementation of an Acoustic Pressure Gradient Prediction,” Journal of Sound and Vibration, Vol. 319, Nos. 3-5, January 2009, pp. 1200-1221.

S. Saxena, P. J. Morris, K. Viswanathan, “A New Algorithm for the Nonlinear Propagation of Broadband Jet Noise,” AIAA Journal, Vol. 47, No. 1, January 2009, pp. 186-194.

Semerlotti, F., Schmidt, W.T., Smith, E.C., Conlon, S.C.,and Banks, J.C., “A Parametric Study for a Structural Intensity Based Damage Detection Technique,” presented at the American Helicopter Society, AHS Specialists Meeting on Condition Based Maintenance, Huntsville, AL Feb. 10-11, 2009.

P. J. Morris, “A Note on the Noise Radiated by Large Scale Turbulent Structures in Subsonic and Supersonic Jets,” International Journal of Aeroacoustics, Vol. 8, No. 4, 2009, pp. 301-316.

Zhu, Y., Palacios, J. L., Smith, E. C., Rose, J. L., “Numerical Simulation and Experimental Validation of Tailored Wave Guides for Ultrasonic De-icing on Aluminum Plates ,” 51st AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Material Conference, April 12-15, 2009 Orlando, Florida.

Shan, Y., and Bakis, C. E., “Viscoelastic Characterization and Self-Heating Behavior of a Flexible Matrix Composite Driveshaft,” J. Composite Materials, 43:1335-1360.

Tiwari, C. Smith, E. C., Bakis, C. E., and Yukish, M. A., “Energy Absorption and Load Limiting via Extension-Torsion Coupled Stitch Ripping Composite Tubes,” Proc. 50th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conf., American Inst. of Aeronautics and Astronautics, Reston, VA, 2009, Paper No. 2009-2442, 14 p. (CD ROM).

Yoo, M. J., Sharma, A., and Bakis, C. E., “Comparison of Interlaminar Fracture Toughening of Filament Wound Glass/Epoxy Composites by using MWCNTs or Flexible Resin,” Proc. SAMPE Symposium and Exposition, Baltimore, MD, May 2009.

Matthews, P., Koudela, K., and Bakis, C., “Composite Delamination Analysis Using Finite Element Methods,” Proc. SAMPE Symposium and Exposition, Baltimore, MD, May 2009.

Lee, S., Brentner, K. S., and Morris, P. J., “Prediction of Acoustic Scattering in the Time Domain Using a Moving Equivalent Source Method,” AIAA-2009-3177, 15th AIAA/CEAS Aeroacoustics Conference (30th AIAA Aeroacoustics Conference), Miami, Florida, May 11-13, 2009.

Stone, C., Duque, E.P.N., and Hennes, C.C., “A hybrid CPU/GPU parallel algorithm for coupled Eulerian and Vortex Particle Methods,” 21st Parallel CFD 2009, May 18-22, Moffett Field, California, 2009.

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

Lee, S., Brentner, K. S., and Morris, P. J., 2009 “Time-domain Approach for Acoustic Scattering of Rotorcraft Noise,” 65th American Helicopter Society Annual Forum, Grapevine, TX, May 27-29, 2009.

Bae, E.S., Gandhi, F., Maughmer, M. D., “Optimally Scheduled Deployments of Miniature Trailing Edge Effectors for Rotorcraft Power Reduction”, American Helicopter Society 65th Forum, Grapevine, TX, May, 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.

Roedts, R. L. and Maughmer, M. D., “Rotorcraft Performance Enhancements Due to a Lower-Surface Effector,” European Rotorcraft Forum, Hamburg, Germany, Sept. 22-25, 2009.

Sollenberger, S. G., Bakis, C. E., and Smith, E. C., “Effect of Stress Concentrations in Flexible Matrix Composite Driveshafts,” Proc. 65th Forum, Vol. 2, American Helicopter Society, Alexandria, VA, 2009, pp. 1055-1060.

Tiwari, C., Smith, E. C., and Bakis, C. E., “Multi-Mechanism Energy Absorption via Extension-Torsion Coupled Composite Tubes,” Proc. 65th Forum, Vol. 2, American Helicopter Society, Alexandria, VA, 2009, pp. 1533-1550, ISSN 1552-2938.

T. Eritenel and R. G. Parker, Computational Nonlinear Vibration Analysis of Gear Pairs Using a Three-Dimensional Model, ASME Power Transmission and Gearing Conference, San Diego, Sept 2009, paper DETC2009-87485.

T. Eritenel and R. G. Parker, Vibration Modes of Helical Planetary Gears, ASME Power Transmission and Gearing Conference, San Diego, Sept 2009, paper DETC2009-87494.

Y. Guo and R. G. Parker, Dynamic Modeling and Analysis of a Planetary Gear Involving Tooth Wedging and Bearing Clearance Nonlinearity, ASME Power Transmission and Gearing Conference,San Diego, Sept 2009, paper DETC2009-87553.

R. G. Parker, Nonlinear Resonant Vibration of Counter-shaft Gears With Fluctuating Mesh Stiffness, ASME Biennial Vibration and Noise Conference, San Diego, Sept 2009, paper DETC2009-87580.

R. G. Parker and X. Wu, Structured Eigensolution Properties of Planetary Gears with Elastically Deformable Ring Gears, ASME 22nd Biennial Conference on Mechanical Vibration and Noise, San Diego, Sept 2009, paper DETC2009-87340.

R. G. Parker, Vibration of Planetary Gears with Elastically Deformable Ring Gears Parametrically Excited by Mesh Stiffness Fluctuations, ASME 7th International Conference on Multibody Systems, Nonlinear Dynamics, and Control, San Diego, Sept 2009, paper DETC2009-87343.

Zhu, Y., Yoo, M. J., Sharma, A., and Bakis, C. E., “Influence of Carbon Nanotubes on Fatigue Delamination Growth in Filament Wound Composites with Rigid and Flexible Matrix Materials,”Proc. 24th Technical Conference, American Society for Composites, Wilmington, DE, Sep. 2009.

Lee, S., Erwin, J. P., and Brentner, K. S., “A Method to Predict Acoustic Scattering of Rotorcraft Noise,” Journal of the American Helicopter Society, Vol. 54, No. 4, October 2009, DOI: 10.4050/JAHS.54.042007.

Zhu, Y., Palacios, J. L., Smith, E. C., Rose, J. L., “Influence of Tailored Waveguides on the Ultrasonic De-Icing Stresses of Aluminum Panels,” the 3rd International Basic Research Conference on Rotorcraft Technology, Nanjing, China, Oct. 14-16, 2009, pp. 210-216.

Nampy N. S., and Smith E. C., “An Innovative Structural Design Concept for Heavy-Lift Rotor Blades,” Presented at the Technical Specialist’s Meeting on Rotorcraft Structures and Survivability, Williamsburg, VA, Oct 27-29, 2009. (Presentation Only).

T. Eritenel and R. G. Parker, Dynamic Behavior of Gear Systems in Rotorcraft Applications, 3rd International Basic Research Conference on Rotorcraft Technology, Nanjing, China, October 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.

G. Liu and R. G. Parker, Impact of Tooth Friction and Its Bending Effect on Gear Dynamics, Journal of Sound and Vibration, 2009, vol. 320, pp. 1039-1063.

T. Eritenel and R. G. Parker, Structured Vibration Modes and Natural Frequencies of Helical Planetary Gears, 13th Asia-Pacific Vibration Conference, Christchurch, New Zealand, November 2009.

C.-J. Bahk and R. G. Parker, Nonlinear Resonant Planetary Gear Vibration with Contact Loss, 13th Asia-Pacific Vibration Conference, Christchurch, New Zealand, November 2009.

W. Zhang, I. Srivastava, Y.-F. Zhu, C. R. Picu, and N. Koratkar, “Heterogeneity in Epoxy Nanocomposites Initiates Crazing: Significant Improvements in Fatigue Resistance and Toughening”, Small 5, 1403-1407 (2009).

Proper, W. Zhang, S. Bartolucci, A. A. Oberai, and N. Koratkar, “In-Situ Detection of Impact Damage in Composites Using Carbon Nanotube Sensor Networks”, Nanoscience and Nanotechnology Letters 1, 3–7 (2009).

T. Eritenel and R. G. Parker, Modal Properties of Three-Dimensional Helical Planetary Gears,Journal of Sound and Vibration, 2009, vol. 325, pp. 397-420.