摘要
矿用救生舱是矿井安全生产中必备的救生装备,其稳定性和抗爆性能决定着逃生人员的生存概率。本文中设计了一种圆柱壳结构救生舱,优化了该救生舱在瓦斯爆炸载荷作用下的抗爆性能:首先,采用ANSYS/LS DYNA软件模拟并验证了爆炸流场载荷;其次,采用ALE流固耦合算法揭示了真实环境下爆炸流场与救生舱的耦合作用;然后,对其进行抗爆性模拟分析及结构设计优化;最后,对比分析了原模型和优化模型的动力响应、强度及能量变化特征,结果表明优化后的救生舱抗爆性满足国家规范要求。
Coal mine rescue capsules are an indispensable equipment for safe production and effective rescue in coal mines,and their efficiency and stability directly determine the rescue efficiency and the antiknock performance in coal mines. In this paper,a cylindrical shell rescue capsule was designed to guarantee the stability of the capsule under a gas explosion load. Firstly,the load of the explosion field was simulated using ANSYS/LSDYNA and validated with previously reported data. Secondly,the coupling effect between the flow field of the explosion shock wave and the rescue capsule was revealed using the ALE fluid-structure coupling algorithm in real coalmine conditions. Thirdly,the antiknock performance analysis and structural design optimization were conducted on the original model. Finally,the dynamic response,strength and energy variation were compared for the original model and the optimized version qualitatively and quantitatively. The results show that the antiknock performance of the optimized model has reached the required national standards of China.
出处
《爆炸与冲击》
EI
CAS
CSCD
北大核心
2018年第1期124-132,共9页
Explosion and Shock Waves
基金
国家自然科学基金项目(51504190
51604218)
国家自然科学基金面上项目(51674191
51674193)
国家重点研发计划项目(2016YFC0800100)
陕西省国际科技合作与交流计划项目(2016KW-070)
西安科技大学优秀博士学位论文培育基金项目
关键词
瓦斯爆炸
冲击载荷
流固耦合
抗爆性能
动力响应
gas explosion
impact load
fluid-solid interaction
antiknock performance
dynamic response
