承受搁置脚载荷的舰船甲板纵骨设计方法  

Design method for deck longitudinal of warship carrying undercarriage load

作　　者：郑朝斌 徐志亭[3] 王福花[3] 王德禹[1,2] 

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]高新船舶与深海开发装备协同创新中心,上海200240 [3]中国船舶工业第708研究所,上海200011

出　　处：《舰船科学技术》2015年第11期44-48,共5页Ship Science and Technology

基　　金：教育部重大专项基金资助项目(201335)

摘　　要：某些设备搁置在甲板上的搁置脚为金属结构,此时与甲板接触区域压力分布具有不均匀性,直接进行均布载荷作用下的线弹性计算不合适。本文采用有限元软件进行非线性接触计算,通过数据处理,得到甲板纵骨接触力分布规律,即甲板纵骨接触力的分布主要集中在3个部位。在此基础上,建立了三力平衡模型,提出了3个力分别对应的计算公式,并通过多跨梁简化模型验证了其合理性。Due to uneven distribution of pressure in the contact area between deck and undercarriage which is a metal structure,linear elastic analysis under uniform load is inappropriate. In this paper,with nonlinear finite element software,nonlinear contact analysis is adopted. Through data processing,the force distribution discipline of deck longitudinal is investigated. It shows that force of deck longitudinal concentrates in three parts. On this basis,the paper puts forth a three- force balance model and formulas for calculating the three forces respectively,which is verified through multi- span beam simplified model.

关 键 词：搁置脚 非线性接触计算 甲板纵骨 多跨梁简化模型 

分 类 号：U662.2[交通运输工程—船舶及航道工程]