火灾环境下复杂含炸药结构的热防护设计与分析

doi:10.3969/j.issn.1000-1093.2014.08.021

兵工学报 ›› 2014, Vol. 35 ›› Issue (8): 1275-1280.doi: 10.3969/j.issn.1000-1093.2014.08.021

火灾环境下复杂含炸药结构的热防护设计与分析

吴松，李明海，张中礼

（中国工程物理研究院总体工程研究所，四川绵阳 621900）

收稿日期:2013-09-02 修回日期:2013-09-02 上线日期:2014-11-03
作者简介:吴松（1986—），男，助理研究员

Design and Analysis of Thermal Protection of Complex Structure with High Explosives under Fire Conditions

WU Song， LI Ming-hai， ZHANG Zhong-li

（Institute of Systems Engineering, China Academy of Engineering Physics, Mianyang 621900, Sichuan, China）

Received:2013-09-02 Revised:2013-09-02 Online:2014-11-03

摘要/Abstract

摘要： 复杂含炸药结构在贮存、运输、勤务和使用过程中可能会遇到意外火灾环境。为达到含炸药结构在火烧30 min情况下，内部炸药的最高温度不超过343 K（70℃）的热防护设计目标，针对火灾环境下影响含炸药结构内部炸药温升的主要因素，提出降低壳体表面辐射率、增大支撑结构导热热阻、采用相变材料进行热疏导的复杂含炸药结构的热防护设计思路和方案。运用有限元数值计算方法，对4种热防护设计方案的控制效果进行计算分析，获得了符合设计要求的组合热防护方案。结果表明：单一的热防护途径只能降低局部位置的温度，组合的热控途径才能满足设计要求。

关键词: 兵器科学与技术, 含炸药结构, 热防护设计, 火灾, 热响应模拟

Abstract: The complex structure with high explosives may encounter an accidental fire event during storage, transportation, service or use. The objective of thermal protection design is that the highest temperature of explosives in the complex structure should not exceed 343 K(70 ℃) in 30 min under fire condition. Some thermal protection measures are presented by analyzing the main factors that affect the temperature rise of the explosives, which are to reduce the emissivity of shell surface, increase the thermal resistance in structural supports and use phase change materials for heat leading. The thermal protection effects of different schemes are computed and analyzed using FEM numerical analysis method. The results show that single measure can only reduce a local temperature, and the combining measures can satisfy the design requirement.

Key words: ordnance science and technology, structure with explosives, thermal protection design, fire, thermal response simulation

中图分类号:

吴松，李明海，张中礼. 火灾环境下复杂含炸药结构的热防护设计与分析[J]. 兵工学报, 2014, 35(8): 1275-1280.

WU Song， LI Ming-hai， ZHANG Zhong-li. Design and Analysis of Thermal Protection of Complex Structure with High Explosives under Fire Conditions[J]. Acta Armamentarii, 2014, 35(8): 1275-1280.

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火灾环境下复杂含炸药结构的热防护设计与分析

Design and Analysis of Thermal Protection of Complex Structure with High Explosives under Fire Conditions

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