摘要
为了降低和防止瓦斯爆炸冲击波对矿难救生系统的破坏,提高防爆抗冲击能力,提出新型复合结构防护外壳。运用有限元数值分析方法,对新型复合结构防护外壳在瓦斯爆炸冲击波作用下的动态响应进行研讨。分析冲击波作用下新型防护外壳的变形、应力和应变,并与单层防护外壳的动态响应进行了对比。结果表明:采用中间柔性材料缓冲层的新型复合防护结构,能够延缓瓦斯爆炸冲击波对矿难救生系统的冲击作用,保护系统内部模块不受严重破坏,制造工艺简单且成本低。运用数值分析的方法,可以为救生系统设计建立一个仿真的实验环境,为优化救生系统设计、提高设计效率提供参考数据。
A new protective crust with compound structure was presented in order to reduce the distortion of a mining life-saving system under gas impact load and improve the anti-blasting ability.The dynamic response of the new protective crust to shock wave of gas explosion was analyzed with finite element numerical analysis method.The analysis focused on the deformation,stress and strain of the new protective crust under shock wave.The analysis results were compared with the dynamic response of a single-layer protective crust.The results showed that the new composite structure with flexible material layer can delay the shock effect of the gas explosion load on a mining life-saving system,and can protect the internal module of the mining life-saving system from destroying seriously;its fabrication technology is simple and with lower cost;the simulation test environment can be established and it can provide reference data for design of mining life-saving system.
出处
《振动与冲击》
EI
CSCD
北大核心
2011年第10期147-152,共6页
Journal of Vibration and Shock
基金
国家自然科学基金资助项目(50874062)
国家重点基础研究发展计划(973计划)(2005CB221506)
重庆市自然科学基金重点项目(CSTC2007BA6018)
关键词
瓦斯爆炸
动态响应
数值分析
复合结构
gas explosion
dynamic response
numerical analysis
composite structure
作者简介
岳强男，博士，副教授，1970年生
