| 飞机结构设计阶段估算谱载下裂纹扩展模型参数的优化方法 |
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| 引用本文： | 剡鸿甲,刘文.飞机结构设计阶段估算谱载下裂纹扩展模型参数的优化方法[J].航空学报,1995,16(2):75-77. |
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| 作者姓名： | 剡鸿甲 刘文 |
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| 作者单位： | 北京航空航天大学５系 |
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| 摘 要： | 提出在短周期谱载荷下，飞机结构设计阶段，裂纹扩展模型ｄａ／ｄｔ＝Ｑａｂ参数的估算法，此法可以依据材料参数、载荷谱和结构的几何特征使用优化设计方法计算。
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| 关 键 词： | 裂纹扩展 载荷谱 优化 |
AN OPTIMUM METHOD FOR ESTIMATING PARAMETERS OF CRACK GROWTH MODEL UNDER LOAD SPECTRUM IN AIRCRAFT STURCTURE DESIGN |
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| Yan Hongjia,Liu Wenting.AN OPTIMUM METHOD FOR ESTIMATING PARAMETERS OF CRACK GROWTH MODEL UNDER LOAD SPECTRUM IN AIRCRAFT STURCTURE DESIGN[J].Acta Aeronautica et Astronautica Sinica,1995,16(2):75-77. |
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| Authors: | Yan Hongjia Liu Wenting |
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| Institution: | Fifth Department of Beijing Uvinersity of Aeronautics and Astronautics,Beijing,100083 |
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| Abstract: | A parameter-estimation method of crack growth model da/da=Qa b under the short-cycle loading spectrum is presented,which can be used in aircraft structure design.The estimation can be conducted by using optimum design procedure,based on material parameter,load spectrum and structural geometry. |
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| Keywords: | crack growth load spectrum optimization |
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