International Journal of Aeronautical and Space Sciences

The Korean Society for Aeronautical and Space Sciences (한국항공우주학회)
권호 표지
DOI QR코드

DOI QR Code

Nonlinear Structural Analysis of High-Aspect-Ratio Structures using Large Deflection Beam Theory

  • Kim, Kyung-Seok (Department of Aerospace Engineering, Korea Advanced Institute of Science and Technology (KAIST)) ;
  • Yoo, Seung-Jae (Department of Aerospace Engineering, Korea Advanced Institute of Science and Technology (KAIST)) ;
  • Lee, In (Department of Aerospace Engineering, Korea Advanced Institute of Science and Technology (KAIST))
  • Published : 2008.11.30
Download PDF
⟨ Previous Next ⟩

Abstract

The nonlinear structural analyses of high-aspect-ratio structures were performed. For the high-aspect-ratio structures, it is important to understand geometric nonlinearity due to large deflections. To consider geometric nonlinearity, finite element analyses based on the large deflection beam theory were introduced. Comparing experimental data and the present nonlinear analysis results, the current results were proved to be very accurate for the static and dynamic behaviors for both isotropic and anisotropic beams.

Keywords

References

  1. Kermode, A. C., Barnard, R. H., Philpott, D. R., The Mechanics of Flight, Prentice Hall, 2006
  2. Librescu, L., and Simovich, J., "A General Formulation for the Aeroelastic Divergence of Composite Swept Forward Wing Structures", Journal of Aircraft, Vol. 25, No. 4, 1988, pp. 364-371 https://doi.org/10.2514/3.45572
  3. Ormiston, R. A., "Investigation of Hingeless Rotor Stability", Vertica, Vol. 7, No. 2, 1983, pp. 143-181
  4. Hodges, D. H., and Dowell, E. H., "Nonlinear Equations of Motion for Elastic Bending and Torsion of Twisted Non-Uniform Rotor Blades", NASA TN D-7818, 1974
  5. Hodges, D. H., and Ormiston, R. A., "Stability of Elastic Bending and Torsion of Uniform cantilever Rotor Blade in hover with Variable Structural Couplings" NASA TN D-8192, 1976
  6. Hinnant, H. E., and Hodges, D. H., "Nonlinear Analysis of a Cantilever Beam", AIAA Journal, Vol. 26, No. 12, 1988, pp. 1521-1527 https://doi.org/10.2514/3.10072
  7. Bauchau, O. A., and Hong, C. H., "Nonlinear Composite Beam Theory", ASME Journal of Applied Mechanics, Vol. 55, 1988, pp. 156-163 https://doi.org/10.1115/1.3173622
  8. Dowell, E. H., and Traybar, J., "Experimental-Theorical Correlation Study of Non-Linear Bending and torsion Deformation of a Cantilever Beam", Journal of Sound and Vibration, Vol. 50, No. 4, 1977, pp. 533-544 https://doi.org/10.1016/0022-460X(77)90501-6
  9. Rosen, A., Loewy, R., and Mathew, M. B., "Nonlinear Analysis of Pretwisted Rods Using 'Principal Curvature Transformation' - Part II: Numerical Results", AIAA Journal, Vol. 25, No. 4, pp. 598-604 https://doi.org/10.2514/3.9669
  10. Smith, E. C. and Chopra, I., "Formulation and Evaluation of Analytical Model for Composite Box-Beams", Journal of American Helicopter Society, Vol. 36, No. 3, 1991, pp. 23-35 https://doi.org/10.4050/JAHS.36.23
  11. Chandra, R. and Chopra, I., "Experimental and Theoretical Investigation of the Vibration Characteristics of Rotating Composite Box Beams", Journal of Aircraft, Vol. 29, No. 4, 1992, pp. 657-664 https://doi.org/10.2514/3.46216