非通航孔桥墩自适应拦截网防撞装置实船拦截试验与水动力计算

发布时间：2018-04-29 02:39

本文选题：自适应拦截网防撞装置 + 非通航孔桥墩　；参考：《海洋工程》2017年01期

【摘要】：针对非通航孔桥墩,研发了一种自适应拦截网防船舶撞击装置,主要由系泊大浮体、系泊锚链和固定锚、自适应小浮筒、拦截网、恒阻力缆绳以及触发钢索所组成。阐述了该防撞装置设计原理,即偏航船舶撞击该防撞装置,小浮筒会带动拦截网自适应地从水平状态竖起展开,包裹住来撞船首,再通过相连浮体的运动阻力和恒阻力缆绳来吸收船舶动能,拦截住船舶,保护非通航孔桥墩安全。随后介绍在福建平潭海峡大桥引桥附近海域实施的实船撞击自适应拦截网防撞装置的大型试验,试验结果显示:自适应拦截网成功升起,船舶被安全拦截,从而实验证实了设计原理与设计方案的可行性和可靠性。最后,采用大型水动力分析软件AQWA对防撞装置拦截船舶过程进行数值模拟,模拟结果与实验结果基本一致,说明了数值仿真具有较好的计算精度和可靠性,能够为该防撞装置的结构设计与优化提供重要的参考。
[Abstract]:For the bridge piers of non-navigable holes, an adaptive interceptor network is developed to prevent ship impingement, which is mainly composed of mooring large floating body, mooring anchor chain and anchor, adaptive small buoy, interceptor net, constant resistance cable and trigger cable. The design principle of the anti-collision device is described, that is, when the yaw ship hits the anti-collision device, the small buoy will drive the interceptor network to open adaptively from the horizontal state and wrap the collision bow around the ship. Then the motional resistance and constant resistance cable of the connected floating body are used to absorb the kinetic energy of the ship, to intercept the ship and to protect the safety of the bridge pier of the non-navigable hole. Then a large scale test of the anti-collision device of the full-ship collision adaptive interception network in the vicinity of the approach bridge of the Pingtan Channel Bridge in Fujian Province is introduced. The test results show that the adaptive interception network has been successfully raised and the ship has been safely intercepted. The experiment proves the feasibility and reliability of the design principle and scheme. Finally, the large hydrodynamic analysis software AQWA is used to simulate the ship interception process of anti-collision device. The simulation results are in good agreement with the experimental results, which shows that the numerical simulation has good accuracy and reliability. It can provide important reference for the structure design and optimization of the anti-collision device.
【作者单位】：宁波大学冲击与安全工程教育部重点实验室;
【基金】：国家自然科学基金项目(11272164,11472142) 浙江省科技厅公益技术应用研究项目(2014C33010) 宁波市科技局农业与社会发展攻关项目(2014C50081)
【分类号】：U443.26

【相似文献】