目的 针对传统航空弹药“单箱包装+散货运输”模式存在的保障时效差、运力浪费及转运效率低等问题,设计一种适应敏捷保障模式的碳纤维复合材料储运方舱,并验证其结构强度与可靠性。方法 提出“裸弹集装化”储供保障新模式,采用T700碳纤维复合材料与30CrMnSiA高强钢混合架构进行方舱轻量化设计。基于经典层合板理论（CLT）和Tsai-Wu失效准则,利用ANSYS ACP模块建立各向异性材料的精细化有限元模型。设置垂向、纵向、侧向冲击及吊装等多种极限工况,运用有限元法（FEM）对结构进行静力学与模态分析。结果 仿真结果表明,方舱主体结构在4.5g垂向过载极限工况下,最大等效应力为971.16 MPa,位于立柱连接处;复合材料壁板及关键承力部件的安全系数均大于1.5。内部托架在极端工况下最大应力达到1 022 MPa,超过材料屈服强度,指出了局部增厚的优化方向。结论 该储运方舱设计方案实现了高密度存储与“运挂一体”的快速保障功能,结构刚度与强度满足运输环境要求,验证了复合材料在重载包装装备中的应用潜力,为航空弹药敏捷保障提供了理论依据与技术支撑。
Abstract
The work aims to design a carbon fiber reinforced polymer (CFRP) storage and transport shelter based on the agile support model and validate its structural strength and reliability, so as to address the issues of poor support timeliness, wasted transportation capacity, and low transfer efficiency inherent in the traditional "single box packaging + bulk transport" mode for aviation ammunition. A new storage and supply support mode of "naked ammunition containerization" was proposed. A lightweight design was achieved by adopting a hybrid architecture combining T700 CFRP and 30CrMnSiA high-strength steel. Based on the Classical Laminate Theory (CLT) and the Tsai-Wu failure criterion, a refined finite element model of the anisotropic materials was established utilizing the ANSYS Composite PrepPost (ACP) module. Various extreme load cases, including vertical, longitudinal, and lateral impacts as well as hoisting conditions, were set to conduct static and modal analyses of the structure using the Finite Element Method (FEM). The simulation results indicated that under the extreme condition of 4.5g vertical overload, the maximum equivalent stress of the main shelter structure was 971.16 MPa, occurring at the column joints; the safety factors for the composite panels and critical load-bearing components were all greater than 1.5. However, the maximum stress of the internal bracket reached 1 022 MPa under extreme conditions, exceeding the yield strength of the material, which suggested the necessity for structural optimization through local thickening. The proposed storage and transport shelter design realizes high-density storage and the rapid support function of "integrated transport and loading". Its structural stiffness and strength meet the requirements of the environment. This study validates the application potential of composite materials in heavy-duty packaging equipment and provides a theoretical basis and technical support for the agile support of aviation ammunition.
关键词
敏捷保障 /
航空弹药 /
储运方舱 /
碳纤维复合材料 /
有限元分析 /
结构优化
Key words
agile support /
aviation ammunition /
storage and transport shelter /
carbon fiber reinforced polymer (CFRP) /
finite element analysis (FEA) /
structural optimization
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