Thin-walled rotating composite blades featuring extension-T wist elastic coupling

Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference

Volumn 7, Issue , 2004, Pages 5593-5605

  Oh, Sang Yong ^a,c   Librescu, Liviu ^a,c   Song, Ohseop ^b,c  

^a VIRGINIA POLYTECHNIC INSTITUTE AND STATE UNIVERSITY   (United States)

^b Chungnam National University   (South Korea)

^c 219 Norris Hall ^*

Author keywords

[No Author keywords available]

Indexed keywords

EIGENFREQUENCIES; EIGENVALUE PROBLEMS; EXTENSION-TWIST ELASTIC COUPLING; FREE VIBRATION;

BOUNDARY CONDITIONS; COMPOSITE MATERIALS; EIGENVALUES AND EIGENFUNCTIONS; ELASTICITY; GALERKIN METHODS; MATHEMATICAL MODELS; THIN WALLED STRUCTURES; VIBRATIONS (MECHANICAL);

TURBOMACHINE BLADES;

EID: 16244409222     PISSN: 02734508     EISSN: None     Source Type: Conference Proceeding    
DOI: None     Document Type: Conference Paper

References (12)

1. Houbolt, J. C. and Brooks, G. W., "Differential Equations of Motion for Combined Flapwise Bending, Chordwise Bending, and Torsion of Twisted Nonuniform Rotor Blades," NASA TR 1364, 1958.
2. Hodges, D. H., "Torsion of Pretwisted Beams Due to Axial Loading," ASME Journal of Applied Mechanics, Vol. 50, pp. 393-397, 1980.
3. Rosen, A., "The Effect of Initial Twist on the Torsional Rigidity of Beams Another Point of View," ASME Journal of Applied Mechanics, Vol. 47, pp. 389-393, 1980.
4. Kosmatka, J. B., "Extension, Bending and Torsion of Anisotropic Beams with Initial Twist," Proceedings of the 30th Structures, Structural Dynamics and Materials Conference, April 3-5, 1989, Mobile AL, AIAA Paper No. 89-1364, pp. 1799-1806.
5. Kaza, K. B. and Kielb, R. E., "Effects of Warping and Pretwist on Torsional Vibration of Rotating Beams," Journal of Applied Mechanics, Trans. ASME, Vol. 51, Dec., pp. 913-920, 1984.
6. Subrahmanyam, K. B., and Kaza, K. R. V., "Finite Difference Analysis of Torsionally Vibrations of Pretwisted, Rotating, Cantilever Beams with Effects of Warping," Journal of Sound and Vibration, Vol. 99, No. 2, pp. 213-224, 1985.
7. McGee, O. G., "Influence of Warping-Pretwist Coupling on the Torsional Vibration of Centrifigally-Stressed Cantilevers, with Thin-Walled Open Beams," Computers & Structures, Vol. 42, No. 2, pp. 175-195, 1992.
8. Rosen, A., "Structural and Dynamics Behavior of Pretwisted Rods and Beams," Applied Mechanics Reviews, Vol. 44, No. 12, Part 1, pp. 483-515, 1991.
9. Bauchau, O. A., Lowey, R. G. and Bryan, P. S., "Approach to Ideal Twist Distribution in Tilt Rotor VTOL Blade Design," RTC Report NO. D-86-2, Rensselar Polytechnic Institute, Troy, NY, July 1986.
10. Nixon, M. W., "Extension-Twist Coupling of Composite Circular Tubes with Applied to Tilt Rotor Blade Design," 28th Structure, Structural Dynamics and Materials Conference, April 6-8, 1987, Monterey, CA, AIAA Paper No. 87-0772, pp. 295-303.
11. Song, O. and Librescu, L., "Structural Modeling and Free Vibration Analysis of Rotating Composite Thin-Walled Beams," Journal of the American Helicopter Society, Vol. 42, No. 4, pp. 358-369, 1997.
12. Song, O., Librescu, L. and Oh, S-Y., "Vibration of Pretwisted Adaptive Rotating Blades Modeled as Anisotropic Thin-Walled Beams," AIAA Journal, Vol. 39, No. 2, February, pp. 285-295, 2001a.