水平冲击下防撞装置的试验及有限元研究  

Experimental and Finite Element Research on the Anti-collision Device under Horizontal Impact

作　　者：宗莉娜 方海[2] 周辉[2] ZONG Lina;FANG Hai;ZHOU Hui

机构地区：[1]江苏城市职业学院建筑工程学院,江苏南京210036 [2]南京工业大学土木工程学院,江苏南京211816

出　　处：《江苏船舶》2021年第1期5-8,共4页Jiangsu Ship

基　　金：国家自然科学基金重点资助项目(51238003);国家自然科学基金青年科学基金资助项目(51208251);校级“十三五”青年专项科研规划课题(17SSW-Z-Q-032)。

摘　　要：采用试验及有限元模拟的方法对格构增强复合材料桥梁防撞装置的水平抗冲击性能进行研究。首先,根据桥墩的实际形状选择合适的缩比尺寸制作了桥墩及防撞装置模型,并进行水平冲击试验。其次,研究有无防撞装置及防撞装置中横向格构间距对船舶撞击力峰值的影响,并利用LS-DYNA软件进行有限元模拟。最后,将有限元结果与试验结果进行对比。结果表明:该防撞装置有效减小了冲击过程中的撞击力峰值及桥墩位移,且有限元模拟结果与试验结果吻合良好。Experiments and finite element simulation methods are used to study the horizontal impact resistance of the lattice-reinforced composite bridge anti-collision device. First,according to the actual shape of the bridge pier,the appropriate scaled-down size is selected to make the model of the bridge pier and the anti-collision device,then the horizontal impact test is carried out. Secondly,the impact of the anti-collision device and the lateral lattice spacing in the anticollision device on the peak value of the ship’s impact force is studied. The finite element simulation is carried out by using the LS-DYNA software. Finally,the finite element results are compared with the experimental results. The results show that the anti-collision device effectively reduces the peak impact force and the displacement of the bridge pier during the impact progress. The finite element simulation results are in good agreement with the test results.

关 键 词：复合材料 防撞装置 水平冲击荷载 撞击力 

分 类 号：TB332[一般工业技术—材料科学与工程]