考虑水流力作用的锚链力计算方法  

Calculation method of anchor chain force considering current force

作　　者：陈云鹤[1] 赵晶[1] 

机构地区：[1]解放军理工大学野战工程学院,江苏南京210007

出　　处：《解放军理工大学学报（自然科学版）》2016年第2期116-120,共5页Journal of PLA University of Science and Technology(Natural Science Edition)

摘　　要：为了研究水流对锚链力的影响,对锚链悬链段采用了质点-弹簧模型,考虑锚链受到的水流力和弹性变形的影响因素,将各点的静力平衡方程相互叠加,建立了锚链力方程并进行了算例的计算。在流速较大时,使用经典悬链线方程计算锚链力的误差较大;当水深超过15m后,3种轻质锚链的锚链力误差均超过5%。研究表明,在锚链力、锚链悬链段形态和水平投影长度方面,锚链力方程的计算结果较经典悬链线方程的偏大,且计算结果受流速和水深的影响。In order to study the effect of current on the anchor force,mass-spring model was established for anchor chain catenary segment,considering the force of current and the effect of elastic deformation to the chain,then the static equilibrium equations of each point were superimposed on each other,a new equation of anchor chain catenary segment was established,and several examples were calculated.When the flow rate was larger,the result of classical catenary equation to calculate the force of anchor chain had a big error.When the water depth was more than 15 m,the force errors of the three light anchor chains were all more than 5%.Research shows that the result of new equation is larger than the result of classical catenary equation in the force of anchor chain,catenary segment shape and length of horizontal projection,and it is influenced by the velocity and water depth.

关 键 词：经典悬链线方程 质点-弹簧模型 水流力 弹性变形 锚链力 

分 类 号：U656.6[交通运输工程—港口、海岸及近海工程]