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兵工学报 ›› 2021, Vol. 42 ›› Issue (11): 2360-2367.doi: 10.3969/j.issn.1000-1093.2021.11.009

• 论文 • 上一篇    下一篇

金属与碳纤维复合结构发射箱耐高温冲击性能

彭露玫, 周成康, 张志勇, 刘冬   

  1. (北京特种机械研究所, 北京 100143)
  • 上线日期:2021-12-27
  • 作者简介:彭露玫(1991—), 女, 工程师,硕士。 E-mail: 379847114@qq.com
  • 基金资助:
    武器装备“十三五”预先研究项目(2020年)

High-temperature Shock Resistance of Launch Container with Metal and Carbon Fiber Composite Structure

PENG Lumei, ZHOU Chengkang, ZHANG Zhiyong, LIU Dong   

  1. (Beijing Institute of Specialized Machinery, Beijing 100143, China)
  • Online:2021-12-27

摘要: 为解决发射过程中产生的带颗粒高温燃气对碳纤维复合材料(CFRP)发射箱的冲刷和烧蚀问题,某型号发射箱采取薄壁金属与CFRP复合的结构形式,内层为金属层,外层为CFRP层。使用计算流体力学软件Fluent仿真不同材料、不同厚度金属层与CFRP层复合结构的温度分布;利用有限元分析软件Ansys进行线性温度屈曲分析,研究钢+CFRP复合、铝+CFRP复合两种复合结构以及不同厚度金属层复合的屈曲温度;提出热发射环境金属+CFRP复合结构参数,并与实际热发射试验结果进行对比分析。仿真和试验结果表明:金属+CFRP复合结构发射箱中,金属层厚度过薄,无法适应热发射过程的高温冲击,金属层会发生向内屈曲现象;相同厚度情况下,钢+CFRP复合结构耐热发射温度冲击能力高于铝+CFRP复合结构;相同质量情况下,钢+CFRP复合结构耐热发射温度冲击能力低于铝+CFRP复合结构。

关键词: 金属与碳纤维复合结构, 热发射, 碳纤维复合材料, 线性屈曲

Abstract: In order to solve the problem of scouring and ablation of the carbon fiber reinforced plastic (CFRP) launch container by the high temperature gas with particles generated during the launch process, a launch container is made of a thin-walled metal and CFRP composite structure, with the inner layer being the metal layer and the outer layer being the CFRP layer. The temperature distributions of the composite structures with different materials and different thicknesses of metal layer and CFRP layer were simulated using the CFD commercial software Fluent, and the linear buckling analysis of temperature was carried out using the finlte element analysis software. Finite element analysis software Ansys was used to study the buckling temperatures of steel-CFRP composite structure, aluminum-CFRP composite structure, and the composite structures with different thicknesses of metal layer. The parameters of metal-CFRP composite structure in the thermal emission environment were presented, and the actual thermal emission test results were compared and analyzed. The simulated and test results show that the thickness of metal layer is too thin to adapt to the high temperature shock in thermal launch process, and the metal layer is buckled inward; steel+CFRP composite structure has higher capacity than aluminum+CFRP composite structure for heat-emitting temperature impact under the condition of the same thickness; and steel+CFRP composite structure has lower capacity than aluminum+CFRP composite structure for heat-emitting temperature impact under the condition of the same mass.

Key words: metal+CFRPcompositestructure, thermallaunch, composites, linearbuckling

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