泄爆静开启压力对气体内爆炸载荷的影响研究

发布时间：2019-03-04 19:56

【摘要】：针对约束泄爆结构静开启压力这一关键特征参数,对建筑物内气体爆炸瞬态流场展开数值模拟研究,探索不同静开启压力条件下爆炸压力载荷的分布规律。研究结果证实了爆炸压力载荷双峰结构的客观存在,阐释了双峰压力结构在时间上的分布规律,揭示了双峰时间间隔随泄爆结构静开启压力的非线性特征。研究成果为建筑物内可燃气体爆炸事故的定量风险评估及气体爆炸荷载下建筑结构动力响应与防爆抗爆安全设计奠定必要的理论基础。
[Abstract]:Aiming at the key characteristic parameter of static opening pressure of confined explosion relief structure, the transient flow field of gas explosion in building is numerically simulated and the distribution law of explosion pressure load under different static opening pressure is explored. The research results confirm the objective existence of the double-peak structure under explosive pressure load, explain the distribution rule of the double-peak pressure structure in time, and reveal the nonlinear characteristics of the double-peak time interval with the static opening pressure of the explosive structure. The research results lay a theoretical foundation for the quantitative risk assessment of flammable gas explosion accidents in buildings and the dynamic response of building structures under gas explosion load and the safety design of explosion-proof and explosion-proof.
【作者单位】：北京石油化工学院安全工程学院;灭火救援技术公安部重点实验室;中国人民武装警察部队学院;
【基金】：国家自然科学基金(51404029,51604031) 灭火救援技术公安部重点实验室开放课题(KF201607)
【分类号】：X932

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