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Volume 33 Issue 04
Apr.  2007
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Journal of Beijing University of Aeronautics and Astronautics  > 2007  >  33(04): 409-413.
Yao Shuzhen, Jin Maozhong. Strategy of state transition in UML based on Petri net[J]. Journal of Beijing University of Aeronautics and Astronautics, 2008, 34(01): 79-83. (in Chinese)
Citation: Lü Bin, Tan Shengang, Wan Zhiqiang, et al. Optimization design for aeroelastic dynamics of T-tail[J]. Journal of Beijing University of Aeronautics and Astronautics, 2007, 33(04): 409-413. (in Chinese)
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Optimization design for aeroelastic dynamics of T-tail

  • School of Aeronautic Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

  • Received Date: 12 May 2006
  • Publish Date: 30 Apr 2007
    Abstract
  • Due to complicated configuration and multi control surfaces, the flutter characteristic design of T-tail is complicated and there are many parameters in the process of establishing dynamics finite element model, so the designers face more difficulties. In order to solve these problems , optimization methods was introduced into design process. According to the virtues of genetic algorithm and sensitivity algorithm, the two methods are mixed for natural vibration optimization and ordinal applied for flutter optimization respectively. The sensitivity formulas about natural frequency and flutter damp to structure parameters were discussed, and the math models about optimization design were established. With the methods using for structural dynamics optimization of a real T-tail model, not only the time of designing has been reduced to a great extent, but also the design precision has been assured, with the error of natural frequency below 3%. The flutter speed increased with the mass of structure minimized, and the result provides references in practical structural design.

     

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    • References(1)
  • [1] Jennings W P, Berry M A.Effect of stabilizer dihedral and static lift on T-tails flutter[J]. Journal of Aircraft, 1977,4(14):364-367 [2] Rodden W P. Dihedral effect of a flexible wing[J]. Journal of Aircraft , 1965,9(2):368-373 [3] Emil Suciu. MSC/NASTRAN flutter analyses of T-tails including horizontal stabilizer static lift effects and T-tails transonic dip Proceedings of the 1996 MSC World Users- Conference. Los Angeles:MSC Software Corporation, 1996:1-7 [4] 张世基. 振动学基础[M]. 北京:北京航空航天大学出版社,1990 Zhang Shiji. Elements of libration[M].Beijing:Beijing University of Aeronautics and Astronautics Press,1990(in Chinese) [5] 管德. 飞机气动弹性力学手册[M].北京:航空工业出版社,1994,126(in Chinese) Guan De. Aircraft aeroelasticity handbook[M]. Beijing:Aviation Industry Press, 1994(in Chinese) [6] 吕斌,刘德广,谢长川,等.机翼低速风洞试验颤振模型优化设计方法[J].北京航空航天大学学报,2006,32(2):163~166(in Chinese) Lü Bin,Liu Deguang,Xie Changchuan, et al. Optimization designing method of wing flutter model for low-speed wind tunnel test[J]. Journal of Beijing University of Aeronautics and Astronautics, 2006,32(2):163-166
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