考虑轴向应力的火炮身管强度分析  

Analysis of Gun Tube Intensity Considering Axial Stress

作　　者：杜中华[1] 吴大林[1] 吴向东[1] 

机构地区：[1]军械工程学院,石家庄050003

出　　处：《机械工程师》2016年第11期27-29,共3页Mechanical Engineer

摘　　要：针对目前火炮单筒身管设计忽略轴向应力的问题,提出了身管轴向应力的计算方法,给出了单筒身管强度设计修正公式,并以某火炮身管为例,分析了考虑轴向应力后身管实际强度曲线和身管理论外形的变化。结果标明,考虑轴向应力后,身管各截面实际承压能力增大,从炮口到炮尾趋于更加安全,在炮尾端面,身管实际承压能力提高3.5%,压坑深度允许量增加6 mm。该研究为火炮身管的精细化设计和使用提供了参考。The tube axial stress is ignored in gun single tube design theory at present. This paper puts forward thecalculation method of the tube axial stress, provides the single tube intensity design correction formula, and analyzes thechange of certain gun tube actual intensity curve and theoretical outer shape considering the axial stress. The researchindicates if the tube axial stress is considered, the gun tube can bear bigger pressure and the tube section will be saferand safer from muzzle to breech. The pressure bearing capability increase 3.5% and the allowable pit depth increase 6mmin the breech section of certain gun. The paper offers reference for gun tube refined design and use.

关 键 词：身管强度 轴向应力 单筒身管 数值仿真 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]