Thermo-mechanical Coupling Analysis for a Large Calibre Gun Multiround Continuous Firing Process

Abstract

Abstract:

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.

Key words: gun barrel, thermo-mechanical coupling, finite element analysis, heat transfer, thermal stress

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。

关键词: 火炮炮管, 热力耦合, 有限元分析, 传热, 热应力

CLC Number:

TJ34

WU Feng, ZHENG Jie-Hua, TUN Ku-Chuan, JIE Fang-Qiu. Thermo-mechanical Coupling Analysis for a Large Calibre Gun Multiround Continuous Firing Process[J]. China Mechanical Engineering, 2012, 23(9): 1056-1059.

武锋, 郑祖华, 吴圣川, 祖方遒. 大口径火炮多发连射炮管热力耦合分析[J]. 中国机械工程, 2012, 23(9): 1056-1059.

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Thermo-mechanical Coupling Analysis for a Large Calibre Gun Multiround Continuous Firing Process

大口径火炮多发连射炮管热力耦合分析

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