This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
The Warping Restraint Effect in the Critical and Subcritical Static Aeroelastic Behavior of Swept Forward Composite Wing Structures
Annotation ability available
Sector:
Language:
English
Abstract
An exact approach to the aeroelastic spanwise lift distribution and divergence instability of swept (aft and back) uniform composite wing structures is developed in this paper. The approach based on the Laplace transform technique enables one to solve in a unified manner both aeroelastic problems. The analysis encompasses the cases of free and restrained warping models for the wing twist. Numerical results are finally presented to demonstrate the effects played by the fiber-orientation, ply lay-up, warping restraint and wing geometry both on the subcritical static aeroelastic response and on the divergence instability of composite swept wings.
Authors
Citation
Librescu, L. and Thangjitham, S., "The Warping Restraint Effect in the Critical and Subcritical Static Aeroelastic Behavior of Swept Forward Composite Wing Structures," SAE Technical Paper 891056, 1989, https://doi.org/10.4271/891056.Also In
References
- Hertz, T. J. Shirk, H. H. Ricketts, R. H. Weisshaar, T. A. “On the Track of Practical Forward-Swept Wings,” Astronautics and Aeronautics , 20 Jan. 1982 40 52
- Weisshaar, T. A. “Tailoring for Aeroelastic Stability and Lateral Control Enhancement,” Second International Symposium on Aeroelasticity and Structural Dynamics Aachen, FRG April 1985 415 425
- Shirk, M. H. Hertz, T. J. Weisshaar, T. A. “Aeroelastic Tailoring - Theory, Practice and Promise,” J. Aircraft 23 1 Jan. 1986 6 18
- Weisshaar, T. A. “Aeroelastic Tailoring -Creative Use of Unusual Materials,” AIAA/ASME/ASCE/AHS 28th Structures, Structural Dynamics and Materials Conference Monterey, CA April 6-8 1987
- Lottati, I. “Flutter and Divergence Aeroelastic Characteristics for Composite Forward Swept Cantilevered Wing,” J. of Aircraft 22 11 Nov. 1985 1001 1007
- Librescu, L. Simovich, J. “A General Formulation for the Aeroelastic Divergence of Composite Swept Forward Wing Structures,” Proceedings of the 15th Congress of the International Council of the Aeronautical Sciences Sept. 7-12 1986 London ICAS 1129 1140 Journal of Aircraft 25 4 364 371
- Weisshaar, T. A. “Aeroelastic Divergence of Orthotropic Plates,” Proceedings of the International Symposium on Composite Materials and Structures June 1986 Beijing, China 399 408
- Librescu, L. Khdeir, A. A. “Aeroelastic Divergence of Sweptforward Composite Wings Including Warping Restraint Effect,” AIAA Journal 26 11 Nov. 1988 1373 1377
- Petre, A. Stanescu, C. Librescu, L. “Aeroelastic Divergence of Multicell Wings Taking Their Fixing Restraints into Account,” Revue de Mecanique Appliquee , 19 6 1961 689 698
- Petre, A Teoria Aeroelasticitatii, Statica Edit. Academiei Republicii Socialiste Romania Bucarest 1966
- Reissner, E. Stein, M. “Torsion and Transverse Bending of Cantilevered Plates,” NACA TN 2369 June 1951
- Crawley, E. F. Dugundji, J. “Frequency Determination and Non-Dimensionalization for Composite Cantilever Plates,” J. of Sound and Vibration 72 1 1980 1 10
- Jensen, D. W. Crawley, E. F. Dugundji, J. “Vibration of Cantilevered Graphite/Epoxy Plates with Bending-Torsion Coupling Journal of Reinforced Plastics and Composites 1 July 1982 254 269
- Kaza, K. R. V. Kielb, R. E. “Effects of Warping and Pretwist on Torsional Vibration of Rotating Beams,” Journal of Applied Mechanics , Trans, of ASME 51 Dec. 1984 913 920
- Bauchau, O. A. Coffenberry, B. S. Rehfield, L. W. “Composite Box Beam Analysis: Theory and Experiments,” Journal of Reinforced Plastics and Composites 6 Jan. 1987 25 35
- Oyibo, G. A. Berman, J. H. “Anisotropic Wing Aeroelastic Theories with Warping Effects,” Second International Symposium on Aeroelasticity and Structural Dynamics Aachen, FRG April 1985 434 440
- Rodden, W. P. “Aeroelastic Divergence of Unrestrained Vehicles,” Journal of Aircraft 18 Dec. 1981 1072 1073
- Rodden, W. P. “Aeroelastic Divergence of Unrestrained Vehicles,” Journal of Aircraft 21 Jan. 1984 94 96
- Rodden, W. P. Bellinger, E. D. “Unrestrained Aeroelastic Divergence in a Dynamic Stability Analysis,” Journal of Aircraft 19 Sept. 1982 796 797
- Lottati, I. “Aeroelastic Stability Characteristics of a Composite Swept Wing with Tip Weights for an Unrestrained Vehicle,” Journal of Aircraft 24 1 Nov. 1987 793 802
- Niblett, L. T. “Aeroelastic Divergence of Trimmed Aircraft,” Journal of Aircraft 23 727 729 9 Sept. 1986
- Housner, J. M. Stein, M. “Flutter Analysis of Swept-Wing Subsonic Aircraft with Parameter Studies of Composite Wings,” NASA TN-D7539 Sept. 1974
- Weisshaar, T. A. “Forward Swept Wing. Static Aeroelasticity,” AFFDL-TR-3087 June 1979
- Weisshaar, T. A. “Divergence of Forward Swept Composite Wings,” Journal of Aircraft 17 June 1980 442 448
- Lehman, L. L. “Hybrid State Vector Methods for Structural Dynamics and Aeroelastic Boundary Value Problems,” Ph.D. Thesis Stanford University Stanford, CA February 1982
- Librescu, L. Thangjitham, S. “The Influence of the Warping Restraint on the Spanwise Lift Distribution of Swept Forward Composite Wing Structures,” AIAA/ASME/ASCE/AHS/29th Structures, Structural Dynamics and Materials Conference, Paper 88-2209
- Librescu, L. Elastostatics and Kinetics of Anisotropic and Heterogeneous Shell-Type Structures, Chapter 1 - Aeroelastic Stability of Anisotropic Multilayered Thin Panels 1 281 Noordhoff Internat. Publ. Leyden, The Netherlands 1975