航行气垫船激励均匀水深浮冰层位移响应的数值模拟  

Numerical simulation of displacement response of floating ice sheet induced by a moving air cushion vehicle in uniform depth

作　　者：丁志勇[1] 李宇辰[1] 张志宏[1] 卢再华[1] 

机构地区：[1]海军工程大学理学院,湖北武汉430033

出　　处：《舰船科学技术》2016年第10期20-24,共5页Ship Science and Technology

基　　金：国家自然科学基金资助项目(51479202)

摘　　要：在均匀水深条件下,基于ALE算法对匀速航行气垫船激励浮冰层的位移响应问题进行数值模拟。计算不同气垫船速度和河道岸壁宽度条件下的冰层位移响应,获得对应于冰层最大垂向位移变形情况下的气垫船临界速度。计算结果与理论解和试验结果符合良好,验证计算方法的有效性。计算结果表明:在临界速度时冰层下陷位移达到最大,而河道岸壁的存在将会使临界速度减小。Based on the ALE algorithm in uniform depth, the displacement response of floating ice sheet caused by a moving air cushion vehicle（ACV） was numerically simulated, the critical speed of moving load with maximum vertical displacement deformation of ice sheet were solved, the influence of river width on the displacement response and critical speed were analyzed. A good agreement exists among the numerical results and theoretical solutions as well as experimental results. The research shows that maximum depression deformation of ice sheet will appear at critical speed, and the existence of river bank will decrease the value of critical speed.

关 键 词：气垫船 冰层 数值模拟 临界速度 

分 类 号：U674.943[交通运输工程—船舶及航道工程]