Journal of the Korea Institute of Military Science and Technology (한국군사과학기술학회지)

The Korea Institute of Military Science and Technology (한국군사과학기술학회)
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Structural Analysis Library Development for Efficient High-Fidelity Composite Rotor Blade and Wing Design with High Aspect Ratio

높은 세장비를 가진 복합재 날개 구조의 효율적인 고기능 설계를 위한 구조해석 해석 라이브러리 개발

  • Park, Jehong (Dept. of Avioinics Engineering of Hanseo University) ;
  • Jang, Jun Hwan (Dept. of Mechanical Engineering of Yuhan University)
  • 박제홍 (한서대학교 항공전자공학과) ;
  • 장준환 (유한대학교 기계공학과 기계설계전공)
  • Received : 2019.02.25
  • Accepted : 2019.06.07
  • Published : 2019.08.05
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Abstract

It takes a lot of time and human resources to build a detailed three-dimensional finite element analysis model that is almost similar to the actual structure for sophisticated analysis, and a lot of experience and know-how is required to form a reliable analytical model. In this paper, the one-dimensional beam model connected by stiffness matrix through blade analysis library was compared with the results of three-dimensional analysis with the stress calculated through the process of dimensional restoration analysis based on the principle of virtual work. By comparing the stress calculated through dimensional restoration analysis with the three-dimensional analytical model, We will introduce the development status and application case of the blade analysis library by comparing efficiency and accuracy.

Keywords

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Fig. 1. Dimensional reduction model & recovery analysis procedure

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Fig. 2. Analysis library hierarchy of slender wing structure[10]

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Fig. 3. Cross-sectional analysis example through cross-section discretization of rotor blade

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Fig. 4. Results of strain distribution though dimensional analysis of one-dimensional beam model

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Fig. 5. Circular beam : 3D model & cross-section

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Fig. 6. Stress results of case1: 3D-FEM & recovery

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Fig. 7. 120 ply beam : 3D model & 1D beam model

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Fig. 8. Recovery stress results σ12 at mid-span x2 = 0

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Fig. 9. Recovery stress results σ13 at mid-span x2 = 0

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Fig. 10. Recovery stress results of composite rotor blade

Table 1. Geometry and material property of single material beam

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Table 2. Material property of 120 ply beam

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References

  1. D. H. Hodges, “A Review of Composite Rotor Blade Modeling,” AIAA Journal, Vol. 28, No. 3, pp. 561-565, 1990. https://doi.org/10.2514/3.10430
  2. S. N. Jung, V. T. Nagaraj, I. Chopra, “Assessment of Composite Rotor Blade Modeling Techniques,” Journal of the American Helicopter Society, Vol. 44, No. 3, pp. 188-205, 1999. https://doi.org/10.4050/JAHS.44.188
  3. P. Hu, "VABS-IDE: VABS-Enabled Integrated Design Environment(IDE) for Efficient High-Fidelity Composite Rotor Blade and Wing Design," 51st AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference, 2010.
  4. T. A. Hu, "Validation and Comparison About VABS-IDE and VABS-GUI," Utah State University, 2012.
  5. W. Yu, M. Blair, “GEBT: A General-Purpose Nonlinear Analysis Tool for Composite Beams,” Composite Structures, Vol. 94, No. 9, pp. 2677-2689, 2012. https://doi.org/10.1016/j.compstruct.2012.04.007
  6. W. Yu, "VABS Manual for Users," Utah State University, pp. 1-22, 2012.
  7. W. Yu, D. H. Hodges, J. C. Ho, "Variational Asymptotic Beam Sectional Analysis - An Updated Version," International Journal of Engineering Science, Vol. 59, pp. 40-64, 2012. https://doi.org/10.1016/j.ijengsci.2012.03.006
  8. H.-S. Do, J.-Y Cho, I.-J. Park, S.-N. Jung, T.-J. Kim, D.-H. Kim, "Development of Program for Modeling of Cross Section of Composite Rotor Blade," Vol. 39, No. 3, pp. 261-268, 2011. https://doi.org/10.5139/JKSAS.2010.39.3.261
  9. Y.-C. Kang, J.-Y. Cho, MK. Dhadwal, S.-N. Jung, T.-J. Kim, "Development of Program for Modeling of Cross Section of Composite Rotor Blade Using Open CASCADE," Conference of The Korean Society for Aeronautical and Space Sciences, 2011.
  10. J. H. Jang, H. Lee, “Blade Analysis Library Development of Dimension Reducible Modeling and Recovery Analysis for Composite Rotor Blades,” Journal of The Korean Society for Aeronautical and Space Sciences, Vol. 43, No. 10, pp. 920-927, 2015. https://doi.org/10.5139/JKSAS.2015.43.10.920