基于ANSYS LS-DYNA水下爆破阻波帘的设计与研究  

Design and Research of Wave Blocking Curtain for Underwater Blasting based on ANSYS LS-DYNA

作　　者：范怀斌 陆少锋 莫崇勋[4] 汪旭光 刁约[5] 胡英国 FAN Huai-bin;LU Shao-feng;MO Chong-xun;WANG Xu-guang;DIAO Yue;HU Ying-guo(Guangxi New Harbour Engineering Co.,Ltd.,Nanning 530200,China;WANG Xu-guang Academician Work Station,Guangxi New Harbour,Nanning 530200,China;Reasearch Institution of Underwater Rock-Cutting Engineering at Guangxi Zhuang Municipality Region,Nanning 530200,China;School of Architecture and Civil Engineering,Guangxi University,Nanning 530004,China;College of Resources and Environment,Guangxi University,Nanning 530004,China;Changjiang River Scientific Research Institute of Changjiang Water Resources Commission,Wuhan 430010,China)

机构地区：[1]广西新港湾工程有限公司,南宁530200 [2]广西新港湾汪旭光院士工作站,南宁530200 [3]广西壮族自治区水下破岩工程研究中心,南宁530200 [4]广西大学土木建筑工程学院,南宁530004 [5]广西大学资源与环境学院,南宁530004 [6]长江水利委员会长江科学院,武汉430010

出　　处：《爆破》2023年第2期139-144,共6页Blasting

基　　金：国家自然科学基金项目(51969004、52279093、52079009);广西科技基地和人才专项(桂科AD20238084);广西重点研发计划(桂科AB22035001);防城港市重点研发计划(防科AB21014001)。

摘　　要：水下爆破试验危险性大、成本高,在实验室进行相关试验项目对设备和场地的要求非常严格,每次试验都要按照相关程序进行审批。针对目前爆破试验程序繁琐及等待周期长等现状,以水下爆破防护为研究对象,应用碰撞振动仿真技术设计水下爆破阻波帘,使设计的产品在尽可能少的水下试验次数下达到满意的效果。采用ANSYS LS-DYNA模块,使用不同材料做成的阻波帘进行防护仿真。在距爆炸点5 m,压强为7.5 MPa的位置进行数据采集,对比分析帆布阻波帘与其他5种不同材料的阻波帘的爆轰波减小系数。仿真结果表明,阻波性能从高到低排序为:空气泡、多孔铝板、汽车轮胎、泡沫塑料、石棉布。其中空气泡的阻波帘,在1 kg TNT当量工况条件下,距爆炸点5 m,压强为0.22 MPa处,压强降低率达到97%,防护效果最好。Underwater blasting tests are dangerous and costly.The requirements for the related test equipment and site in laboratory are very strict.Each test must be approved in accordance with relevant procedures.In view of the current situation of cumbersome blasting test procedures and long waiting periods,a wave barrier curtain which can achieve satisfactory results with as few underwater blasting tests was designed by using collision and vibration simulation technology.In order to achieve this purpose,the protection of wave barriers made of different materials were simulated by the ANSYS LS-DYNA module.Data were collected at a position 5 m away from the explosion point with a pressure of 7.5 MPa,and the detonation wave reduction coefficients of the canvas wave blocking curtain and other five different materials were compared and analyzed.The simulation results showed that the wave resistance performance in order from high to low is:air bubble,porous aluminum plate,automobile tire,foamed plastic,asbestos cloth.Among them,under the equivalent working condition of 1 kg TNT,and at the location 5 m away from the explosion point with a pressure of 0.22 MPa,the air bubble′s pressure reduction rate reached 97%,and the protection effect was the best.

关 键 词：ANSYS LS-DYNA 水下爆破 阻波帘 仿真技术 

分 类 号：TV542.5[水利工程—水利水电工程]