摘要
通过建立一维内弹道学两相流模型和经典圆管瞬态热传导模型,研究了大口径火炮多发连射过程的瞬态传热特性,并用ABAQUS软件进一步分析20发连射时炮管的热结构耦合场。得到某155mm火炮药室部温度场和瞬态热应力场分布规律,为进一步评测炮管的疲劳裂纹和确定剩余寿命提供了参考。
The heat conduction process of a large-caliber artillery firing was simulated by using an one-dimensional two-phase flow interior ballistic model and an one-dimensional tube transient heat transfer model,by which the transient temperature field and thermal stress distribution of the barrel champer of a 155mm gun were calculated by ABAQUS after twenty shots.The results can provide the important basis to evaluate the fatigue crack propagation and to predict the life of gun barrel.
出处
《中国机械工程》
EI
CAS
CSCD
北大核心
2012年第9期1056-1059,共4页
China Mechanical Engineering
关键词
火炮炮管
热力耦合
有限元分析
传热
热应力
gun barrel
thermo-mechanical coupling
finite element analysis
heat transfer
thermal stress
