撞击载荷下充液双层结构响应特性的试验研究  

Experimental study on response characteristics of the water-filled double-layer structure under collision load

作　　者：张琳 张涛[1] 刘土光[1] 郑浩 ZHANG Lin;ZHANG Tao;LIU Tuguang;ZHENG Hao(School of Naval Architecture and Ocean Engineering,Huazhong University of Science and Technology,Wuhan 430074,Hubei,China)

机构地区：[1]华中科技大学船舶与海洋工程学院,湖北武汉430074

出　　处：《爆炸与冲击》2020年第3期73-81,共9页Explosion and Shock Waves

基　　金：国家自然科学基金(10702022)。

摘　　要：为研究充液双层结构在碰撞过程的动力响应特性,对简化的双层板结构开展了系列碰撞试验,并对比了在有无充水条件下被撞结构的动态响应。研究结果显示,液体在碰撞过程中对顶板的缓冲和保护作用。最后通过分析有无充水条件下撞头加速度和内部扰动压力等试验数据,研究了充水与结构的流固耦合效应对碰撞响应的影响。To investigate the dynamic response characteristics of the water-filled double layer structure when encountering a collision load,a series of collision tests are conducted and the response of the structure filled with water and unfilled with water is compared.The results indicate that the internal water can protect the upper plate during a collision.Finally,the effect of fluid-solid coupling between internal water and double layer structure on the collision response is investigated by analyzing the test data of the acceleration of the striker and the disturbance pressure of the internal water.

关 键 词：充液双层板结构 碰撞试验 流固耦合 变形 

分 类 号：O342[理学—固体力学]