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基于缝隙特征的蜂窝夹层结构刚度损失评估及应用

, PP. 186-190

Keywords: 夹层结构,缝隙特征,刚度损失,数值模拟,反射面板

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Abstract:

高精度蜂窝夹层结构反射面板由经过开缝应力释放工艺处理的表层铝板和铝蜂窝芯胶接而成,为了研究缝隙所引起的夹层结构刚度损失,基于对实验数据的统计分析,考虑缝隙面积和分布等对刚度的影响,定义了缝隙对刚度的影响系数与刚度的损失系数并建立了二者之间的关系,提出了基于缝隙特征的蜂窝夹层结构刚度损失的评估方法。实验分析结果表明,缝隙对夹层结构刚度造成的损失达到一定程度后明显减缓,刚度最大损失可限定在40%。针对表板带有缝隙的夹层结构的数值分析,依据夹层结构刚度等效原则,利用刚度损失与缝隙影响系数之间的关系,可将带有缝隙的表板等效为厚度减薄的连续表板,对于模拟带有缝隙的夹层结构具有一定的应用价值。

References

[1]  王兴业, 杨孚标, 曾竟成. 夹层结构复合材料设计原理及其应用 [M]. 北京: 化工工业出版社, 2007: 24-26.
[2]  夏利娟, 金咸定, 汪庠宝. 卫星结构蜂窝夹层板的等效计算 [J]. 上海交通大学学报, 2003, 37(7): 999-1001. Xia Lijuan, Jin Xianding, Wang Xiangbao. Equivalent analysis of honeycomb sandwich plates for satellite structure [J]. Journal of Shanghai Jiaotong University, 2003, 37(7): 999-1001.
[3]  Hao Changling, Zhou Xianbin. The solution to boundary-value problems arising in high accuracy panel reflector fabrication [J]. Chinese Journal of Aeronautics, 2009, 22(3): 97-104.
[4]  郝长岭, 周贤宾, 李志光. 紧缩场蜂窝夹层反射面板材料参数优化反求 [J]. 复合材料学报, 2008, 25(3): 190-196. Hao Changling, Zhou Xianbin, Li Zhiguang. Material parameter identification of sandwich reflector panels of compact antenna test range by genetic algorithm-based inverse method [J]. Acta Materiae Compositae Sinica, 2008, 25(3): 190-196.
[5]  唐羽烨, 薛明德. 蜂窝夹芯板的热学与力学特性分析 [J]. 复合材料学报, 2005, 22(2): 130-136. Tang Yuye, Xue Mingde. Thermo-mechanical characteristics analysis of sandwich panel with honeycomb core [J]. Acta Materiae Compositae Sinica, 2005, 22(2): 130-136.
[6]  Frederiksen P S. Identification of temperature dependence for orthotropic material moduli [J]. Mechanics of Materials, 1992, 13(1): 79-90.
[7]  Shi Yinming, Sol Huguo. Material parameter identification of sandwich beams by an inverse method [J]. Journal of Sound and Vibration, 2006, 290(3-5): 1234-1255.
[8]  Liu G R, Chen S C. Flaw detection in sandwich plates based on time-harmonic response using genetic algorithm [J]. Computer Methods in Applied Mechanics and Engineering, 2001, 190(42): 5505-5514.
[9]  关世伟. 三层壳体计算的刚度等效方法 [J]. 北京航空航天大学学报, 2006, 32(5): 590-593. Guan Shiwei. Method of stiffness equivalence for calculating three-layer thin shells [J]. Journal of Beijing University of Aeronautics and Astronautics, 2006, 32(5): 590-593.
[10]  中国航空研究院. 复合材料结构设计手册 [M]. 北京: 航空工业出版社, 2001: 120-121.
[11]  赵 煜, 周 博, 贺拴海. 基于裂缝特征的PC简支梁损伤刚度评估方法 [J]. 长安大学学报, 2011, 31(4): 39-44. Zhao Yu, Zhou Bo, He Shuanhai. Damage stiffness assessment method based on fracture charateristics of PC simply-supported beam [J]. Journal of Chang’an Univerity, 2011, 31(4): 39-44.
[12]  李 强. 蜂窝夹层结构NASTRAN计算方法探讨 [J]. 飞机工程, 2000, 9(3): 39-40. Li Qiang. Discussion of honeycomb sandwich structure NASTRAN calculation method [J]. Aircraft Engineering, 2000, 9(3): 39-40.
[13]  Holt P J, Webber J H. Exact solutions to some honeycomb sandwich beam, plane, and shell problems [J]. J Strain Analysis, 1982, 17(1): 1-8.

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