| 飞机结构初步设计优化中的损伤容限优化方法研究 |
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| 引用本文： | 李珊山,邢灵格,丁惠梁,段世慧. 飞机结构初步设计优化中的损伤容限优化方法研究[J]. 航空工程进展, 2011, 2(1): 78-83 |
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| 作者姓名： | 李珊山 邢灵格 丁惠梁 段世慧 |
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| 作者单位： | 中航工业飞机强度研究所,西安,710065 |
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| 摘 要： | 本文提出并研究了一种在飞机初步设计阶段考虑损伤容限要求优化设计的方法.首先,通过许用应力形式来体现并表征损伤容限设计要求,作为一类新的设计约束,用于初步设计阶段的结构优化设计.然后,通过Global/local分析,在整体优化设计中考虑局部疲劳需求;根据疲劳寿命要求,用裂纹扩展分析程序AFGROW确定了一个新的强度准则...
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| 关 键 词： | 飞机结构 损伤容限 设计优化 AFGROW COMPASS |
Research on Damage Tolerance Design Optimization in Aircraft Structure Preliminary Design Optimization |
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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 |
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| Authors: | Li Shanshan Xing Lingge Ding Huiliang Duan Shihui |
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| Affiliation: | Li Shanshan,Xing Lingge,Ding Huiliang,Duan Shihui(AVIC Aircraft Strength Research Institute,Xi'an 710065,China) |
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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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| Keywords: | aircraft structures damage tolerance design optimization AFGROW COMPASS |
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