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Research on Damage Tolerance Design Optimization in Aircraft Structure Preliminary Design Optimization
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Li Shanshan,Xing Lingge,Ding Huiliang,Duan Shihui(AVIC Aircraft Strength Research Institute,Xi'an 710065,China)
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V215.2
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Abstract:
A method for design optimization considering damage tolerance requirements in the aircraft structure preliminary design process is introduced.Firstly,damage tolerance design requirements are defined by fatigue stress allowables and applied in the preliminary design optimization as new design constraints.Then,the global/local finite element approach is used to consider the local fatigue requirements in the global design optimization.A new strength criterion for design life requirements is provided through fa...
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Li Shanshan, Xing Lingge, Ding Huiliang, Duan Shihui. Research on Damage Tolerance Design Optimization in Aircraft Structure Preliminary Design Optimization[J]. Advances in Aeronautical Science and Engineering,2011,2(1):78-83