基于ANSYS有限元软件的船闸下闸首结构三维非线性分析  

Three dimensional nonlinear analysis of lower lock head structure of ship lock based on ANSYS finite element software

作　　者：文训科 邓方明 张有林 WEN Xun-ke;DENG Fang-ming;ZHANG You-lin(Sichuan Communication Surveying and Design Institute Co.Ltd., Chengdu 610017, China;Sichuan Minjiang Port & Shipping & Eectricity Power Development Co.Ltd., Leshan 614000, China)

机构地区：[1]四川省交通勘察设计研究院有限公司,成都610017 [2]四川岷江港航电开发有限责任公司,乐山614000

出　　处：《水道港口》2021年第5期670-675,682,共7页Journal of Waterway and Harbor

基　　金：国家重点研发计划(2016YFC0802204)。

摘　　要：文章针对下闸首采用传统计算方法难以定量分析墙体内部应力、空间位移以及基岩变形模量对墙体的影响等问题,以东风岩船闸下闸首分离式结构为例,采用三维非线性有限元方法,建立船闸闸首结构的仿真力学模型,利用ANSYS10.0有限元分析软件对不同工况下闸首的位移、内力等进行计算,再将有限元计算结果与传统计算方法结果进行比对分析,总结有限元计算的特点及优势。研究表明,有限元计算结果可为船闸闸首的优化设计、安全评价、结构设计提供参考依据,并建议将此方法作为闸首结构的补充计算方法,从而弥补传统计算方法在局部结构处理、地基变形模量对结构影响考虑不足等缺点。The paper was set in the Yangtze Estuary Deep-water Channel(12.5 m)maintenance dredging Project,combing with the factors include siltation characteristics,dredging working condition and ship performance etc.,utilized empirical formula and statistical data of dredgers to analysis and research the dredging efficiency in running period of Yangtze Estuary Deep-water Channel(12.5 m).It was found that the three main factors affecting the dredging efficiency by summary and calculation,which include siltation is highly concentrated in time and space,high large-ship navigation density in the deep-water channel and low utilization ratio of temporary disposal area.In this project,with the measures that allocated dredging resources properly in accordance with siltation characteristics,made dredging schedule scientifically for dredgers and increased the trips to temporary disposal area for dredgers were taken,the average loaded volume of dredger increased by 25%,the time utilization increased by 5%and daily dredging trips increased by 16%.As a whole,the dredging efficiency of Yangtze Estuary Deep-water Channel(12.5 m)maintenance dredging Project could increase by 15%to 20%.

关 键 词：下闸首 分离式结构 传统计算方法 三维非线性有限元分析 

分 类 号：U641[交通运输工程—船舶及航道工程]