Publications

2009

Acree, C.W., "JVX Proprotor Performance Calculations and Comparisons with Hover and Airplane-Mode Test Data", NASA TM 2009 - 215380 Download

Blanken, C., Decker, W., Malpica, C., Berger, T., Tucker, G., Lusardi, J., Ivler, C., Tischler, M., Hofinfer, M., "An Investigation of Rotorcraft Stability-Phase Margin Requirements in Hover". Presented at the American Helicopter Society 65th Annual Forum, Grapevine, Texas, May 27 - 29, 2009. Download

Bousman, W. G. and Norman, T.R., 2009. "Aeromechanics in A Status of NASA Rotorcraft Research" NASA/TP–2009-215369, (G. K. Yamauchi and L. A. Young, eds.), September, Chapter 2, pp. 11–79. Download

Datta, A., Johnson, W., "Three-dimensional Finite Element Formulation and Scalable Domain Decomposition for High Fidelity Rotor Dynamic Analysis". Presented at the American Helicopter Society Annual Forum 65, Grapevine, Texas, May 27-29, 2009. Download

Bousman, W.,UH-60 Airloads Tutorial. Download

Floros, M., Johnson, W., "Performance Analysis of the Slowed-Rotor Compound Helicopter Configuration", Journal of American Helicopter Society 2009 Download

Janakiram, R., Sim, B., Kitaplioglu, C., Straub, F., "Blade-Vortex Interaction Noise Characteristics of a Full-Scale Active Flap Rotor". Presented at the American Helicopter Society 65th Annual Forum, Grapevine, Texas, May 27-29, 2009. Download

Johnson, W., "NDARC NASA Design and Analysis of Rotorcraft", NASA/TP–2009-215402 Download

Johnson, W., "Influence of Lift Offset on Rotorcraft Performance", NASA/TP–2009-215404 Download

Johnson, W., Sinsay, J., "Rotorcraft Conceptual Design Environment", "Rotorcraft Conceptual Design Environment" Presented at the 2nd International Forum on Rotorcraft Multidisciplinary Technology ,Korea and 3rd International Basic Research Conference on Rotorcraft Technology, China. Oct 2009 Download

Kottapalli, S., Straub, F., "Correlation of Smart Active Flap Rotor Loads", American Helicopter Society 65th Annual Forum and Technology Display, May 27-29, 2009 Download

Lim, J., McAlister, K., Johnson, W., "Hover Performance Correlation for Full-Scale and Model-Scale Coaxial Rotors", Journal of American Helicopter Society 2009 Download

Norman, T. R., Theodore, C., Shinoda, P. M., Fuerst, D., Arnold, T. P., Makinen, S., Lorber, P., and O'Neill, J., Full-Scale Wind Tunnel Test of a UH-60 Individual Blade Control System for Performance Improvement and Vibration, Loads, and Noise Control. American Helicopter Society 65th Annual Forum, Grapevine, TX, May 2009. Download

Sim, B., JanakiRam, R., Barbely, N., Solis, E., "Reduced In-Plane, Low Frequency Noise of an Active Flap Rotor". Presented at the American Helicopter Society 65th Annual Forum, Grapevine, Texas, May 27-29, 2009. Download

Straub, F., Vaidyanathan, A., Birchette, T., Lau, B., "SMART Rotor Development and Wind-Tunnel Test", Presented at the 35th European Rotorcraft Forum, Hamburg, Germany, Sept. 22-25, 2009. Download

Yeo, H., Johnson, W., "Performance and Design Investigation of Heavy Lift Tilt-Rotor with Aerodynamic Interference Effects", JOURNAL OF AIRCRAFT Vol. 46, No. 4, July–August 2009 Download

Yamauchi, G., Young, L., "A Status of NASA Rotorcraft Research" NASA/TP–2009-215369 Download