有限流动水域浮体受力及侧倾研究  

Stress and Overturning of Floating Structure in Finite Flowing Water

作　　者：谭箐[1] 顾晓峰 傅宗甫[1] 崔贞[1] 江文 马永林 TAN Qing;GU Xiaofeng;FU Zongfu;CUI Zhen;JIANG Wen;MA Yonglin(College of Water Conservancy and Hydroelectric Engineering,Hohai University,Nanjing,Jiangsu 21@8,China;Jiangsu Taihu Planning and Design Institute of Water Resources Co.,Ltd.,Suzhou,Jiangsu 215128,China)

机构地区：[1]河海大学水利水电学院,江苏南京210098 [2]江苏省太湖水利规划设计研究院有限公司,江苏苏州215128

出　　处：《水利与建筑工程学报》2018年第4期170-175,共6页Journal of Water Resources and Architectural Engineering

基　　金：国家自然科学基金项目(51279048);中央高校基本科研业务费专项资金资助(2016B40414)

摘　　要：为研究浮体结构在淹没状态下运行过程中的受力以及力矩,采用物理模型试验,对不同体型和流速下的浮体结构在水流作用下产生的作用力以及侧倾力矩进行了比较分析。结果表明,不同浮体结构的长高比对浮体结构在垂直方向所受动水压力、浮体结构侧倾力矩都存在显著影响,随着长高比的增加,两者明显增大;但对浮体结构水平受力影响不大;而不同水流流速对浮体结构所受水平作用力影响巨大,随着来流流速的增加,水平作用力明显增大,对浮体结构在垂直方向的受力影响微小,且在一定程度上,随着来流流速的增大侧倾力矩同样增大。In order to analyze the stress and torque of floating structure in submerged operation,the physical experiments were used to test the stress and overturning of the floating structures with different structures and flow velocities in finite flowing water.The results show that the aspect ratioδof different floating structures has significant influences on the vertical direction of the hydrodynamic pressure and the overturning moment of the floating structure,as the ratio of length to height increases,both of them increase obviously;while it has little effect on the horizontal force of the floating structure.The influence of the water velocity on the horizontal force of floating structure is significant,with the increase of inflow velocity,the horizontal force increases obviously;while it has little impact on the vertical hydrodynamic pressure,and it affects the overturning moment to a certain extent,with the increase of the inflow velocity,the lateral tilt torque also increases.

关 键 词：浮体结构 结构体型 动水压力 有限流动水域 

分 类 号：TV663.5[水利工程—水利水电工程]