极端风浪下海上机场VLFS连接器载荷响应分析
Load Response Analysis of VLFS Connectors at Offshore Airport Under Extreme Wind and Waves
王丽君 1柯世堂 2李文杰 3陈静 3任贺贺3
作者信息
- 1. 南京航空航天大学土木与机场工程系 南京,211106;南京航空航天大学金城学院 南京,211106
- 2. 南京航空航天大学土木与机场工程系 南京,211106;江苏省机场基础设施安全工程研究中心 南京,211106;南京航空航天大学金城学院 南京,211106
- 3. 南京航空航天大学土木与机场工程系 南京,211106;江苏省机场基础设施安全工程研究中心 南京,211106
- 折叠
摘要
为了研究浪向角、入射波频率和连接器刚度耦合变化对连接器载荷的影响,以刚模块柔性连接器(rigid module and flexible connector,简称RMFC)模型计算理论为基础,建立8模块海上机场超大浮体水动力模型进行数值模拟水槽实验,分别对连接器在规则波和不规则波下的载荷响应进行频域计算.选取6个连接器刚度条件,研究不同连接器刚度下连接器的载荷响应,在不同海况和连接器刚度条件下考虑0°,30°,45°,60°及90°浪向角的作用,连接器载荷响应幅值主要从纵向、横向及垂向3个方向进行比对.结果表明,同一方向上的载荷在浪向角45°和60°较为敏感,极端风浪耦合环境下,垂向载荷明显比其他两个方向载荷值大,连接器载荷值随刚度值增大而增大,在K5～K6之间呈大幅递增趋势.
Abstract
To investigate the effects of changes in wave angle and connector stiffness coupling on connector loads,as well as the effects of changes in incident wave frequency and connector stiffness coupling on connector loads,an 8-module offshore airport oversized floating body hydrodynamic model is established based on the rigid module and flexible connector(RMFC)model calculation theory.Numerical simulations of water tank experi-ments are conducted,and the frequency domain calculations of the connector's load response under regular and irregular waves are studied.Six connection member stiffness conditions are selected to study the connector load response under various sea states and connector stiffness conditions,considering the effects of wave angles at 0°,30°,45°,60° and 90°.The connector load response amplitude are primarily compared in the longitudinal,transverse and vertical directions.The results show that loads are more sensitive at wave angles 45° and 60° in the same direction,and the vertical load is significantly larger than the other two directions under extreme wind and wave coupling conditions.Additionally,there is a significant increase from K5 to K6.
关键词
极端风浪/浪向角/耦合/海上机场/超大浮体/连接器/载荷响应Key words
extreme wind and waves/wave angle/coupling/offshore airports/oversized floating bodies/con-nectors/load response引用本文复制引用
基金项目
国家自然科学基金资助项目(52078251)
江苏省自然科学基金资助项目(BK20211518)
江苏省自然科学基金资助项目(BK20210309)
南京航空航天大学金城学院2022年度校级科研基金资助项目(XJ202209)
出版年
2024
NETL
NSTL
万方数据