复合材料科学与工程 ›› 2015, Vol. 0 ›› Issue (9): 5-10.

• 基础研究 •    下一篇

无人机弹射蜂窝夹层结构破坏分析工程估算方法研究

张恩阳*, 刘波, 陆振玉, 冯琨程   

  1. 中国科学院长春光学精密机械与物理研究所,长春 130033
  • 收稿日期:2015-04-14 出版日期:2015-09-28 发布日期:2021-09-14
  • 作者简介:张恩阳(1987-),男,硕士,助理研究员,主要从事复合材料蜂窝夹层结构方面的研究。
  • 基金资助:
    国家自然科学基金青年基金(51305421);吉林省科技发展项目青年基金(20140520137JH)

RESEARCH OF THE ENGINEERING ESTIMATION METHOD ON LAUNCHING FAILURE OF THE UAV OF HONEYCOMB SANDWICH

ZHANG En-yang*, LIU Bo, LU Zhen-yu, FENG Kun-cheng   

  1. Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Science, Changchun 130033, China
  • Received:2015-04-14 Online:2015-09-28 Published:2021-09-14

摘要: 复合材料蜂窝夹层结构广泛应用于小型无人机机体结构,蜂窝夹层结构设计需要满足无人机使用技术的不断发展的要求。就某小型无人机弹射试验破坏的问题,基于经典梁弯曲理论与Reissner剪切理论薄面板的基本假设进行了分析模型建立与工程估算分析,并与有限元结果进行对比分析,结果为上面板最大应力偏差为3%,下面板最大应力偏差为10.8%,与试验破坏结果具有较好的一致性。研究结果表明,该工程估算方法对实际蜂窝夹层结构设计具有一定的指导意义。

关键词: 无人机, 弹射, 蜂窝夹层结构, 工程估算, 有限元

Abstract: The composite honeycomb sandwich is widely used for the airframe of small UAV, and the design of honeycomb sandwich is needed to meet the requirements of UAV technology evolving. Aiming at the launching test of small UAV, we analyze the modeling and the engineering estimate based on the classical beam bending theory and the basic assumption of thin panel which is based on the shear theory of Reissner, and compare with the results of finite element. The results show that the eviation of the maximum stress on the top panel is 3% and the eviation of the maximum stress on the bottom panel is 10.8%, and the results are consistent with the destruction of launching test. The result shows that the method of engineering estimate has certain guiding significance for the actual design of honeycomb sandwich.

Key words: UAV, launching, honeycomb sandwich, engineering estimate, FEM

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