摘要
介绍矿难救生球系统(简称球)的原理及结构,构建巷道空间和球的分析模型,运用数值分析的方法,分别选择3种球体材料和3种球体厚度进行计算,对该系统在瓦斯爆炸冲击波作用下的动态响应进行研讨,分析冲击波作用下球表面的变形、等效应力、等效塑性应变以及球体材料、厚度等因素对球动态响应的影响。结果表明:运用数值分析的方法,可以为救生球系统设计建立一个仿真的实验环境,为优化系统设计、提高设计效率提供参考数据。
The principle and structure of a life-saving ball system（referred to as bail＇for short hereinafter）were introduced. Analytical model of the laneway space and the ball were established. By selecting three kinds of balls with different materials and thickness for calculation, the dynamic response of the ball to the shock wave of gas explosion was respectively analyzed with numerical analysis methods. The analysis focused on the deformation, the equivalent stress and the equivalent plastic strain of the surface of the ball under shock wave, and the effect of the material and thickness on the dynamic response of the ball. The analysis results show that a simulation experimental environment can be established and reference data can be provided for the design of a life-saving ball system by using numerical analysis methods.
出处
《中国安全科学学报》
CAS
CSCD
2008年第10期92-98,共7页
China Safety Science Journal
基金
福建省重点项目(2006Z0027)
关键词
瓦斯爆炸
冲击波
救生球
动态响应
数值分析
gas explosion
shock wave
life-saving ball
dynamic response
numerical analysis
