中国舰船研究Issue(2)：58-64,7.DOI:10.3969/j.issn.1673-3185.2013.02.011
内河船舶极限强度计算的逐步破坏法程序设计
Procedure Design of the Progressive-Collapse-Method in Strength Assessment for Inland Vessels
骆文刚 1杨平 2崔虎威 2白小溪3
作者信息
- 1. 中船重工建筑工程设计研究院有限责任公司，北京 100121
- 2. 武汉理工大学 交通学院，湖北 武汉 430063
- 3. 中国船级社 大连分社，辽宁 大连 116013
- 折叠
摘要
Abstract
During the modern structural design process and the subsequent strength assessment of ships, the conventional linear elastic theory is no longer appropriate in estimating the maximum working loads. In⁃stead,the progressive collapse method has been widely used for its high computational efficiency and reli⁃ability. This method,also known as the Smith Method or the incremental iterative method,is established based on the average stress-strain relationship of stiffened plate units. However,the application of the Smith Method on inland vessels has been hardly investigated. This paper employs the FEM to execute a se⁃ries of calculations of stiffened plate elements,incorporating the material nonlinearity and the initial defor⁃mation of structures due to welding. The slenderness ratio of plates and stiffeners is chosen to be the main variable,and the Istopt software is used to fit each curve with the average stress-strain relationship for in⁃land vessels so that a function database can be established. Also,this paper describes the detailed calcula⁃tion procedure of the progressive collapse method and discusses the particular technique of variable interpo⁃lation.关键词
内河船/船体梁/极限强度/逐步破坏法Key words
inland vessels/hull girder/ultimate strength/progressive collapse method分类
交通工程引用本文复制引用
骆文刚,杨平,崔虎威,白小溪..内河船舶极限强度计算的逐步破坏法程序设计[J].中国舰船研究,2013,(2):58-64,7.
