新型矿用救生舱防护密闭门的抗冲击性分析

针对新型矿用救生舱防护密闭门在井下瓦斯爆炸时受到的冲击载荷,在分析现有舱门结构的基础上提出了一种新型救生舱防护密闭门结构,通过动力学分析软件ANSYS Autodyn模拟了井下瓦斯爆炸,得到了舱门在爆炸发生后所承受冲击载荷的分布规律,并利用有限元软件ANSYS Workbench对新型舱门整体结构和各零部件进行了静载计算与分析,得到了防护密闭门各个构件的应力在不同爆炸时间点的变化值及最大应力发生的位置,研究了新型舱门结构的抗冲击性能.分析结果表明,在爆炸过程中新型舱门各构件的最大应力均在选用材料的许用范围内,验证了新型救生舱防护密闭门结构设计满足矿用救生舱的使用要素,同时也为救生舱的进一步研发提供了一定的参考依据.

Impact analysis on blast airtight door of new mine refuge chamber

Aiming at the blast airtight door of the new mine refuge chamber will be withstood the shock loads,when gas exploded underground,a new airtight structure of the refuge chamber door was proposed based on analyzing the existing doors.The impact load distribution on the door after the explosion was obtained through the dynamic analysis software ANSYS Autodyn to simulate the gas explosion underground.The strength of the overall door structure and each part were analyzed and computed by using ANSYS Workbench,therefore,the stress of the components at different explosion points and the position of the maximum stress were obtained,and the impact resistance of the new structure was researched.The analysis results indicate that the maximum stress of each component is within the allowable range of the selected materials,and verify the new structure design of the door is reasonable,which also provides certain reference for the development of the refuge chamber.