复合材料面板全高度蜂窝翼面结构分析
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摘要
针对复合材料面板全高度蜂窝夹层翼面结构,基于MSC. Patran/Nastran创建了翼面有限元模型,对均布载荷作用下的结构进行了仿真分析。结果表明:翼面结构最大位移2. 79 mm,曲屈载荷33. 7 kN。工程方法计算得到翼面结构曲屈应变1 308. 6με。静强度试验中实测翼面最大位移2. 81 mm。理论与试验相结合的方式分析夹层翼面结构,最大位移值偏差约0. 7%,证明了仿真分析模型的合理性,为该类型结构的工程应用提供了一定的参考。
For the full-height honeycomb sandwich airfoil of composite panel,the finite element model of the airfoil was created based on MSC. Patran/Nastran. The structure under uniform load was simulated and analyzed. The results show that maximum displacement of the structure is 2. 79 mm,and the flexural load is 33. 7 k N. At the same time,the structural flexural strain 1 308. 6 με is calculated by engineering method. The maximum displacement of the measured airfoil in the static strength test is 2. 81 mm. The theoretical and experimental methods are combined to analyze the airfoil of the sandwich structure. The maximum displacement value deviation is about 0. 7%,which proves the rationality of the simulation analysis model and provides a reference for the engineering application of this type of structure.
For the full-height honeycomb sandwich airfoil of composite panel,the finite element model of the airfoil was created based on MSC. Patran/Nastran. The structure under uniform load was simulated and analyzed. The results show that maximum displacement of the structure is 2. 79 mm,and the flexural load is 33. 7 k N. At the same time,the structural flexural strain 1 308. 6 με is calculated by engineering method. The maximum displacement of the measured airfoil in the static strength test is 2. 81 mm. The theoretical and experimental methods are combined to analyze the airfoil of the sandwich structure. The maximum displacement value deviation is about 0. 7%,which proves the rationality of the simulation analysis model and provides a reference for the engineering application of this type of structure.
引文
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[3]邹国发,龙国荣,万建平,等.某型飞机复合材料蜂窝夹层结构水平尾翼的研制[C].南京:复合材料技术发展研讨会会议论文集,2005:85-89.
[4]闫超,徐伟伟,冷卫红,等.曲率型面蜂窝夹芯复合材料成型工艺研究[C].厦门:第十八届全国复合材料学术会议论文集,2014:165-167.
[5]付立英,王维扬.卫星用蜂窝夹层板的等效计算及实验研究[J].科学技术与工程,2008,8(23):6429-6432.
[6]王天舒.蜂窝复合材料舱体及其结构件的仿真与优化[D].哈尔滨:哈尔滨工业大学,2013:36-38.
[7]杨乃宾,章怡宁.复合材料飞机结构设计[M].北京:航空工业出版社,2002:48-49.
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