• 中国计算机学会会刊
  • 中国科技核心期刊
  • 中文核心期刊

J4 ›› 2011, Vol. 33 ›› Issue (7): 136-140.

• 论文 • 上一篇    下一篇

弹药温度场仿真结果的影响因素分析

姜波1,齐杏林1,赵志宁2   

  1. (1.军械工程学院弹药工程系,河北 石家庄 050003;
    2.炮兵指挥学院武器系统工程教研室,河北 张家口 075100)
  • 收稿日期:2010-06-09 修回日期:2010-10-25 出版日期:2011-07-21 发布日期:2011-07-25
  • 作者简介:齐杏林(1964),男,河北保定人,博士,教授,研究方向为弹载机电系统检测技术。赵志宁(1978),男,山东海阳人,博士生,讲师,研究方向为军事装备学、武器系统与运用工程。

An Analysis of the Influence Factors of Simulation Results of the Ammunition Temperature Field

JIANG Bo1,QI Xinglin1,ZHAO Zhining2   

  1. (1.Department of Ammunition Engineering,Ordnance Engineering College,Shijiazhuang 050003;
    2.Teaching and Research Section of Weapon System Engineering,
    Artillery Command Academy,Zhangjiakou 075100,China)
  • Received:2010-06-09 Revised:2010-10-25 Online:2011-07-21 Published:2011-07-25

摘要:

温度是影响弹药命中精度的关键因素之一,所以一些弹药试验中存在弹药的保温问题。弹药保温过程中弹药的温度场变化可以通过仿真的手段得到。本文通过对仿真过程分析,找出影响弹药温度场仿真结果的几个因素,结合各因素特点分别设计了其对结果影响大小的检测方法,并分别对不同网格大小、有无接触热阻、不同材料参数值和不同几何结构的模型进行了对比仿真,而且仿真过程都是对弹药从20℃保高温到50℃过程的仿真。仿真结果表明,接触热阻、几何结构对结果影响最大,网格大小的影响是随单元数目增加而降低的,这几个因素对弹药温度场仿真结果的影响都是不可忽视的。

关键词: 弹药, 温度场, 仿真, 影响因素

Abstract:

Temperature is one of the key factors to influence the shoot precision of ammunition, so the question of heat preservation exists in some ammunition test. The change of the temperature field of ammunition can get from simulation in the process of heat preservation. We find out several influence factors of the simulation result of ammunition’s temperature field from analysis. Combining each factor’s characteristics we design methods to examine the extent of influence. We carry out the simulation to different mesh sizes, with or without thermal contact resistance, with different material parameters and different structure models. The process of the simulation is to condition the temperature from 20℃ to 50℃.The result indicates that the thermal contact resistance and the structure model are the biggest factors to the simulation result, and the factor of the mesh size follows it is cell number. These factors can not be neglected.

Key words: ammunition;temperature field;simulation;influence factors