摄像防护结构抗水下爆炸冲击响应试验研究  

Experimental study on dynamic behavior of camera protecting structures in underwater explosion

作　　者：张姝红[1] 周庆飞[1] 金辉[1] 

机构地区：[1]91439部队,辽宁大连116041

出　　处：《中国测试》2016年第5期89-92,共4页China Measurement & Test

摘　　要：为验证高速摄像机抗冲击防护结构在水下爆炸作用下的稳定性设计和结构强度设计的合理性,在爆炸罐内实施防护结构缩比模型验证试验,利用水下爆炸电测系统测量水中爆炸压力载荷峰值,通过布设在爆炸罐外观测窗口的高速摄像机拍摄防护结构在水中爆炸作用下的运动图像,并对运动图像处理得到防护结构产生的水平位移和垂向位移。试验结果表明:防护结构在水下爆炸冲击波及气泡脉动流场作用下稳定性较好,结构未产生塑性变形,验证结构强度和稳定性设计合理性,满足60 kg TNT当量装药在0.5冲击因子、冲击波峰值压力11.48 MPa作用下的水下爆炸工程研究需要。To prove the stability and strength of high-speed camera protecting structures, the following tests were carried out： place a reduced scale model for protecting structure into an explosion tank,measure the peak value of explosive pressure load of underwater explosion with an electrical measurement system, shoot the motion image of the model under the action of underwater explosion by a high-speed camera on the observation window outside the explosion tank, and process the motion image taken to get the horizontal and vertical displacement values of the model. The experimental results indicate that the protecting structure is steady and no plastic deformation is caused by underwater explosion shock waves and bubble impulses. The protecting structure is strong and stable enough to meet the need for underwater engineering research of 60 kg TNT with shock factor of 0.5 and peak pressure 11.48 MPa.

关 键 词：水下爆炸冲击波 结构稳定性和强度 模型试验 高速摄像 

分 类 号：TV542.5[水利工程—水利水电工程]