摘要
为解决绑带式与定长式的储弹筒难以满足多种弹药兼容存储等问题,提出一种分段式储弹筒方案。考虑弹药轴向长度、存取便利性与产品防护性等因素设计出储弹筒的基本结构,介绍了分段式储弹筒取弹与补弹的操作原理。基于空降型火炮的服役环境,建立了储弹筒行军惯性冲击与空投过载冲击过程中的变形与应力等动态特性分析模型,并对不同冲击条件下的变形与应力进行仿真分析。结果表明:调节弹簧劲度系数与最大变形量的乘积应大于40 N,幅值为16 g的正弦过载冲击在0.2 s内使储弹筒发生的最大变形与应力分别为0.3 mm与140 MPa,满足使用要求;变形/应力的理论值与仿真值的偏差皆为3%,即所建模型精度较高;对其他储弹筒的设计具有指导作用,对同类机械产品的分析具有借鉴意义。
A segmented ammunition storage cylinder was proposed to deal with the challenge of storing multiple types of ammunition with strap and fixed-length cylinders.The factors such as axial length of ammunition,accessibility,and product protection were taken into account to design the basic structure of the ammunition storage cylinder.The principles of segmented ammunition retrieval and replenishment were introduced.Considering the service environment of airborne artillery,the dynamic characteristic analysis model was established to calculate and simulate the deformation and stress of the storage tank during marching and airdrop impact.The results indicated that the product of the spring stiffness coefficient and the maximum deformation should be greater than 40 N.The sine overload impact with an amplitude of 16 g caused the maximum deformation and stress of the ammunition storage cylinder to be 0.3 mm and 140 MPa within 0.2 s,which met the usage requirements.The deviation between the theoretical and simulated values of deformation∕stress was only 3%,indicating a high level of accuracy in the constructed model.This had a guiding role in the design of other cartridge storage cylinders and provided references for the analysis of similar mechanical products.
作者
王猛
王爱中
林文琦
李金刚
WANG Meng;WANG Aizhong;LIN Wenqi;LI Jingang(Northwest Institute of Mechanical and Electrical Engineering,Xianyang 712099;School of Mechanical Engineering,Tianjin University,Tianjin 300350)
出处
《机械设计》
北大核心
2025年第8期220-224,共5页
Journal of Machine Design
基金
陕西省青年人才托举计划项目(20240223)。
关键词
储弹筒
结构设计
惯性冲击
过载冲击
仿真分析
ammunition storage cylinder
structural design
inertial impaction
overload impact
simulation analysis
