Volume 27 Issue 5
May  2012
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YANG Jian-ling, ZHANG Li-yan, ZHOU Shao-hua, FANG Yong-hong, HUANG Wen-jun. Cross-section torsion stiffness calculation of composite rotor blade based on accurate parametric definition[J]. Journal of Aerospace Power, 2012, 27(5): 1087-1095.
Citation: YANG Jian-ling, ZHANG Li-yan, ZHOU Shao-hua, FANG Yong-hong, HUANG Wen-jun. Cross-section torsion stiffness calculation of composite rotor blade based on accurate parametric definition[J]. Journal of Aerospace Power, 2012, 27(5): 1087-1095.

Cross-section torsion stiffness calculation of composite rotor blade based on accurate parametric definition

  • Received Date: 2011-06-21
  • Publish Date: 2012-05-28
  • A new method was proposed to improve the calculation of the composite rotor’s torsion stiffness.First,the flow of the blade’s structure design and analysis were studied.Then,all the material and geometry profile information of the blade construction were obtained by expanding the methods of blade parametric module definition and blade geometric modeling.Finally,the efficient calculation equations for cross-section torsion stiffness of composite rotor blade were derived based on the thin-box beam theory.One of the advantages of the proposed method lies in that the precision loss of model simplification is eliminate by taking the blade’s refined geometric model.On the other side,by importing the ply block,equivalent thickness and slenderness radio conception,and due to the analytical form of the calculation and the automatic geometric extraction,this method is quite suitable for practical use.Experimental results demonstrate that the method can complete the blade structure design and analysis efficiently.

     

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