摘要
为了提高超大型非标准化吊钩设计的安全性,建立了吊钩三维有限元模型,考虑到吊重在吊载时可能会因重心不稳而导致钩头受力不均,因而对单侧钩头偏载下的不同工况进行了整体计算,根据弹性曲梁理论的危险截面校核,分析了钩身内侧截面的应力分布情况;结合不同设计尺寸的结果比较,从截面形状和水平形状两方面讨论了吊钩设计参数对最大应力值的影响,确定了影响程度排序。研究工作为大型非标吊钩结构的优化设计提供了分析手段和参考依据。
In order to improve design safety of large tonnage non standard hook applied in offshore crane,FEM model was built to calculate structural strength and stress distribution of ITL-2000 four-hook,on the basis of force analysis on hook due to generalized elasticity method for curved beam.Comparing with results achieved by different structure shape,the effect of dimension parameters on maximum stress was also discussed with respect to section shape and horizontal shape.Its influence degree was determined successively.It provides an analysis tool for the optimization design of large hook applied in offshore crane.
出处
《机械设计与制造》
北大核心
2013年第7期87-90,共4页
Machinery Design & Manufacture
基金
浙江省教育厅科研项目(Y201225112)
关键词
吊钩
强度分析
优化设计
有限元
Hook
Strength Analysis
Optimization Design
FEM
