Investigation of rotor blade structural dynamics and modeling based on measured airloads

Journal of Aircraft

Volumn 45, Issue 5, 2008, Pages 1631-1642

  Ho, Jimmy C ^a,c   Yeo, Hyeonsoo ^b,d   Ormiston, Robert A ^b,e  

^a GEORGIA INSTITUTE OF TECHNOLOGY   (United States)

^b NASA AMES RESEARCH CENTER   (United States)

^c Guggenheim School of Aerospace Engineering   (United States)

^d Mail Stop 215 1

^e Aeromechanics

Author keywords

[No Author keywords available]

Indexed keywords

AEROELASTICITY; DYNAMICS; STRUCTURAL DYNAMICS;

AEROELASTIC RESPONSE; COMPUTATIONAL TOOLS; HIGH SENSITIVITY; MEASURED RESULTS; MODEL-BASED OPC; PITCHING MOMENTS; THRUST COEFFICIENTS; TORSION MOMENTS;

TURBOMACHINE BLADES;

EID: 54549113213     PISSN: 00218669     EISSN: 15333868     Source Type: Journal    
DOI: 10.2514/1.34025     Document Type: Article

References (16)

1. J Sweers, J. E., "Theoretical Prediction of Airloads and Structural Loads and Correlation with Flight Test Measurement," United States Army Aviation Materiel Laboratories TR-68-22C, May 1968.
2. Esculier, J., and Bousman, W. G., "Calculated and Measured Blade Structural Response on a Full-Scale Rotor," Journal of the American Helicopter Society, Vol. 33, No. 1, Jan. 1988, pp. 3-16.
3. Torok, M. S., and Goodman, R. K., "Analysis of Rotor Blade Dynamics Using Model Scale UH-60A Airloads," Journal of the American Helicopter Society, Vol. 39, No. 1, Jan. 1994, pp. 63-69.
4. Kufeld, R. M., Balough, D. L., Cross, J. L., Studebaker, K. F., Jennison, C. D., and Bousman, W. G., "Flight Testing of the UH60-A Airloads Aircraft," Proceedings of the 50th Annual Forum of the American Helicopter Society, American Helicopter Society, Alexandria, VA, May 1994, pp. 557-578.
5. Ormiston, R. A., "An Investigation of the Mechanical Airloads Problem for Evaluating Rotor Blade Structural Dynamics Analysis," Proceedings of the American Helicopter Society 4th Decennial Aeromechanics Specialist Meeting, American Helicopter Society, Alexandria, VA, Jan. 2004.
6. Saberi, H., Khoshlahjeh, M., Ormiston, R. A., and Rutkowski, M. J., "Overview of RCAS and Applications to Advanced Rotorcraft Problems," Proceedings of the American Helicopter Society 4th Decennial Aeromechanics Specialist Meeting, American Helicopter Society, Alexandria, VA, Jan. 2004.
7. Sitaraman, J., Datta, A., Baeder, J., and Chopra, I., "Coupled CFD/CSD Prediction of Rotor Aerodynamic and Structural Dynamic Loads for Three Critical Flight Conditions," Proceedings of the 31st European Rotorcraft Forum, Paper 77, Sept. 2005.
8. Johnson, W., "Technology Drivers in the Development of CAMRAD II," Proceedings of the American Helicopter Society Aeromechanics Specialist Meeting, American Helicopter Society, Alexandria, VA, Jan. 1994, pp. PS3.1-PS3.14.
9. Kufeld, R. M., and Johnson, W., "The Effect of Control System Stiffness Models on the Dynamic Stall Behavior of a Helicopter," Journal of the American Helicopter Society, Vol. 45, No. 4, Oct. 2000, pp. 263-269.
10. Potsdam, M., Yeo, H., and Johnson, W., "Rotor Airloads Prediction Using Loose Aerodynamic/Structural Coupling," Journal of Aircraft, Vol. 43, No. 3. May-June 2006, pp. 732-742. doi:10.2514/1.14006
11. J Yeo, H., Bousman, W. G., and Johnson, W., "Performance Analysis of a Utility Helicopter with Standard and Advanced Rotors," Journal of the American Helicopter Society, Vol. 49, No. 3, July 2004, pp. 250-270.
12. J Datta, A., and Chopra, I., "Validation and Understanding of UH-60A Vibratory Loads in Steady Level Flight," Journal of the American Helicopter Society, Vol. 49, No. 3, July 2004, pp. 271-287.
13. Shanley, J. P., "Validation of UH-60A CAMRAD/JA Input Model," Sikorsky Aircraft SER-701716, Stratford, CT, Nov. 1991.
14. Ho, J. C., Yeo, H., and Ormiston, R. A., "Investigation of Rotor Blade Structural Dynamics and Modeling Based on Measured Airloads," Proceedings of the 63rd Annual Forum of the American Helicopter Society, American Helicopter Society, Alexandria, VA, May 2007, pp. 1720-1742.
15. Hewlett, J. J., "UH-60A Black Hawk Engineering Simulation Program: Volume 1 - Mathematical Model," NASA CR-166309, Dec. 1981.
16. Bauchau, O. A., and Liu, H., "On the Modeling of Hydraulic Components in Rotorcraft Systems," Journal of the American Helicopter Society, Vol. 51, No. 2, April 2006, pp. 175-184.