發(fā)布時(shí)間：2019-03-04 19:56

【摘要】：針對(duì)約束泄爆結(jié)構(gòu)靜開(kāi)啟壓力這一關(guān)鍵特征參數(shù),對(duì)建筑物內(nèi)氣體爆炸瞬態(tài)流場(chǎng)展開(kāi)數(shù)值模擬研究,探索不同靜開(kāi)啟壓力條件下爆炸壓力載荷的分布規(guī)律。研究結(jié)果證實(shí)了爆炸壓力載荷雙峰結(jié)構(gòu)的客觀存在,闡釋了雙峰壓力結(jié)構(gòu)在時(shí)間上的分布規(guī)律,揭示了雙峰時(shí)間間隔隨泄爆結(jié)構(gòu)靜開(kāi)啟壓力的非線性特征。研究成果為建筑物內(nèi)可燃?xì)怏w爆炸事故的定量風(fēng)險(xiǎn)評(píng)估及氣體爆炸荷載下建筑結(jié)構(gòu)動(dòng)力響應(yīng)與防爆抗爆安全設(shè)計(jì)奠定必要的理論基礎(chǔ)。
[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.
【作者單位】： 北京石油化工學(xué)院安全工程學(xué)院;滅火救援技術(shù)公安部重點(diǎn)實(shí)驗(yàn)室;中國(guó)人民武裝警察部隊(duì)學(xué)院;
【基金】：國(guó)家自然科學(xué)基金(51404029,51604031) 滅火救援技術(shù)公安部重點(diǎn)實(shí)驗(yàn)室開(kāi)放課題(KF201607)
【分類號(hào)】：X932

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