基于向量式有限元的气垫船围裙张力计算方法  

Calculation of Skirt Tension for Air Cushion Vehicle Based on Vector Form Intrinsic Finite Element

作　　者：曹林冲 唐文勇[1] 张宗科[3] 马涛[3] 

机构地区：[1]上海交通大学海洋工程国家重点实验室,上海200240 [2]中国舰船研究设计中心,武汉430046 [3]中国船舶与海洋工程设计研究院,上海200011

出　　处：《中国造船》2017年第2期89-96,共8页Shipbuilding of China

摘　　要：传统的气垫船围裙张力简化分析法在材料的弹性模量、手指与围裙囊的连接方式和张力计算公式等方面作了较多简化,计算结果不够准确。为了更精确地计算围裙张力,以向量式结构力学为理论基础,结合中心差分公式,提出了向量式有限元法。运用该有限元法计算和分析弹性模量、手指与围裙囊的连接方式和张力近似公式对计算结果的影响。结果显示,用传统的简化分析法计算得到的围裙张力偏低。The traditional simplified analytical method for calculating skirt tension of an air cushion vehicle is not precise enough due to some simplifications in the elastic modulus, connection manners between finger and bag,and calculation formula of tension. To overcome these problems in the calculation of skirt tension,a FEM method based on vector mechanics of structures and central difference formula is proposed. It is shown that skirt tension with traditional simplified analytical method is usually lower than that of the present method.

关 键 词：气垫船 围裙张力 向量式有限元法 

分 类 号：U674.943[交通运输工程—船舶及航道工程]