冲击波作用下变形圆板表面载荷研究  

Research on surface load of deformation circular plate under blast wave

作　　者：郭佳凯 朱春晓 施锐 陈威[1] 李晓彬[1] GUO Jia-kai;ZHU Chun-xiao;SHI Rui;CHEN Wei;LI Xiao-bin(School of Naval Architecture,Ocean and Energy Power Engineering,Wuhan University of Technology,Wuhan 430063,China;Marine Design and Research Institute of China,Shanghai 200011,China;Systems Engineering Research Institute,Beijing 100036,China)

机构地区：[1]武汉理工大学船海与能源动力工程学院,湖北武汉430063 [2]中国船舶及海洋工程设计研究院,上海200011 [3]中国船舶工业系统工程研究院,北京100036

出　　处：《舰船科学技术》2024年第5期21-26,共6页Ship Science and Technology

基　　金：国家自然科学基金资助项目(51979213)。

摘　　要：为了能够快速确定爆炸冲击波作用下变形圆板表面的载荷大小,首先,通过数值模拟方法探究了爆炸冲击波与固支圆板的相互作用过程,获取了变形圆板表面爆炸载荷的分布规律。然后,引入量纲分析,探究了圆板半径、厚度、爆心距圆板的距离、目标点距圆心的距离以及TNT当量等因素对变形圆板表面爆炸载荷的影响。最后,结合数值仿真和量纲分析,推导了变形圆板表面任意一点处爆炸载荷(最大冲量)的计算公式。结果表明,在变形圆板表面,爆炸载荷的分布非均匀,圆板中部压力峰值和冲量较边缘高;推导的公式能够较好快速计算出圆板表面载荷。研究结果可为相关防护结构设计和安全评估提供快速简单的参数输入。To quickly determine the load on the deformed surface under the action of blast wave,firstly,the interaction process between the blast wave and the clamped circular plate is investigated through numerical simulation,and the distribu-tion law of explosion load on the deformed surface of the circular plate is obtained.Then,dimensional analysis is introduced to explore the influence of such factors as the radius and thickness of the circular plate,the distance between the explosion center and the circular plate,the distance between the target point and the circular center,and TNT equivalent on the de-formed surface blast load.Finally,combined with numerical simulation and dimensional analysis,the calculation formula of explosion load(maximum impulse)at any point on the deformed surface of circular plate is derived.The results show that the distribution of blast load is non-uniform on the deformed surface of the circular plate,and the peak pressure and impulse in the middle of the circular plate are higher than those at the edge;The derived formula can be used to calculate the deform-ation surface load of the circular plate quickly.The research results can provide quick and simple parameter input for the design and safety assessment of relevant protective structures.

关 键 词：爆炸冲击波 变形圆板 载荷分布 量纲分析 

分 类 号：O344.7[理学—固体力学]