摘要
为了研究高阻尼橡胶在加固防护门方面的效果和机理,利用LS-DYNA数值模拟软件建立了表面有高阻尼橡胶的防护门在冲击波作用下变形的数值计算模型,并利用激波管试验数据验证了计算模型的可靠性。在此基础上,研究了在防护门迎爆面放置高阻尼橡胶的加固机理和各个因素对其加固效果的影响。研究结果表明:表面有高阻尼橡胶的防护门的变形可分为三个阶段,第一个阶段钢板和橡胶不存在分离,后两个阶段二者出现分离;增加橡胶和钢板厚度提高加固效果时,均存在使加固效果提升明显的最优厚度范围;高阻尼橡胶和钢板之间粘接程度对防护门峰值变形影响较小,对残余变形影响较大。
In order to study the effect and mechanism of high damping rubber in strengthening the blast door,a numerical model of blast door with high damping rubber on the surface under blast wave was established by using LS-DYNA numerical simulation software,and the reliability of the numerical model was validated by the shock tube test data.On this basis,the reinforcement mechanism of the rubber in the face of the blast door and influence of various factors on its reinforcement effect were studied.The research results show that,the deformation of the blast door with high damping rubber on the surface can be divided into three stages,in the first stage,there is no separation between the steel plate and the rubber,the latter two stages are separated;When increasing the thickness of rubber and steel plate to improve the effect of reinforcement,there exists the optimum thickness range to improve the effect of reinforcement;The bonding degree between high damping rubber and steel plate has little influence on the peak deformation of the blast door and has great influence on the residual deformation.
作者
许珂
李秀地
刘佳鑫
毛怀源
XU Ke;LI Xiudi;LIU Jiaxin;MAO Huaiyuan(Department of Military Facility,Army Logistical University of PLA,Chongqing 401311,China)
出处
《兵器装备工程学报》
CAS
北大核心
2018年第10期155-161,共7页
Journal of Ordnance Equipment Engineering
关键词
高阻尼橡胶
防护门
冲击波
动力响应
加固
high damping rubber
blast door
shock wave
dynamic response
reinforcement
