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Volume 41 Issue 4
Apr.  2015
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Journal of Beijing University of Aeronautics and Astronautics  > 2015  >  41(4): 567-573.
Cai Zhihao, Wu Huiyao, Wang Yingxunet al. Approach of UAS airspace integration based on systematic classification and level of safety assessment[J]. Journal of Beijing University of Aeronautics and Astronautics, 2013, 39(11): 1497-1502. (in Chinese)
Citation: XU Yuanming, WANG Dong. Design and optimization of improving stability of curvilinear blade-stiffened panels[J]. Journal of Beijing University of Aeronautics and Astronautics, 2015, 41(4): 567-573. doi: 10.13700/j.bh.1001-5965.2014.0257(in Chinese)
shu

Design and optimization of improving stability of curvilinear blade-stiffened panels

doi: 10.13700/j.bh.1001-5965.2014.0257

  • School of Aeronautic Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

  • Received Date: 09 May 2014
  • Rev Recd Date: 05 Aug 2014
  • Publish Date: 20 Apr 2015
    Abstract
  • Stiffened panels are widely used in the aerospace field as a typical structure. To further expand the design space of straight stiffened panels, an optimization framework for curvilinear blade-stiffened panels was developed based on ModelCenter optimization environment, Catia and Abaqus. Stiffeners were generated by equally-splitm cubic B-spline interpolation function, which had no limit to the number of parameters, thus providing a sufficiently large optimization space for curvilinear stiffened panels. On the other hand, two methods were taken to load on stiffeners including collecting loaded edges of stiffeners and making stiffeners perpendicular to panel edges and some new configurations of stiffened panels were proposed. Optimization results show that for single-axle load, curvilinear stiffened panels in comparison with straight stiffened panels make very small stability improvement. But for multi-axial load, curvilinear stiffened panels have better stability than straight stiffened panels.

     

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    • References(9)
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