發(fā)布時間：2018-06-18 02:39

  本文選題：水下爆炸 + 空氣隔層�。� 參考：《振動與沖擊》2017年03期

【摘要】：由于水下爆炸對結(jié)構(gòu)的破壞能力比空中爆炸要強(qiáng)得多,因此針對水下結(jié)構(gòu)的防護(hù)越來越受到重視。根據(jù)一維應(yīng)力波在不同介質(zhì)交界面的透射反射理論,從理論上分析了低波阻抗介質(zhì)(如空氣)對水下爆炸沖擊波傳播的影響。通過建立含空氣隔層的水下爆炸全耦合模型,考慮水下爆炸沖擊波與空氣隔層及爆轟產(chǎn)物的動態(tài)相互作用,研究了空氣隔層對水下爆炸沖擊波的緩沖效應(yīng),揭示了空氣隔層的運(yùn)動發(fā)展過程。同時分析了空氣隔層厚度及位置對水下爆炸沖擊波緩沖效應(yīng)的影響。結(jié)果表明:空氣隔層距防護(hù)對象越近,防護(hù)效果越佳,具有重要的工程應(yīng)用價值。
[Abstract]:Since underwater explosion has much better damage ability than aerial explosion, more and more attention has been paid to the protection of underwater structure. According to the transmission reflection theory of one-dimensional stress wave at the interface of different media, the influence of low-wave impedance medium (such as air) on the propagation of underwater explosion shock wave is theoretically analyzed. By establishing a fully coupled model of underwater explosion with air barrier, considering the dynamic interaction between underwater explosion shock wave, air barrier layer and detonation product, the buffer effect of air barrier layer on underwater explosion shock wave is studied. The movement development process of air barrier is revealed. At the same time, the influence of the thickness and position of the air interlayer on the shock wave buffer effect of underwater explosion is analyzed. The results show that the closer the air barrier is to the protective object, the better the protective effect is, and it has important engineering application value.
【作者單位】： 武漢大學(xué)水資源與水電工程科學(xué)國家重點(diǎn)實(shí)驗(yàn)室;
【基金】：國家自然科學(xué)基金項(xiàng)目(51125037;51509189) 中國博士后科學(xué)基金資助項(xiàng)目(2015M572197) 中央高�；究蒲袠I(yè)務(wù)費(fèi)專項(xiàng)資金資助(2042015KF0001)
【分類號】：O382.1

【相似文獻(xiàn)】

相關(guān)期刊論文 前10條

1 朱東亞,胡文tD,曹學(xué)偉,陳慶春;臨南油田隔層類型劃分及其分布規(guī)律研究[J];地球科學(xué);2004年02期

2 隗合明,黨r，

本文編號：2033649