摘要
针对船体板架固有频率计算模型的特点，对影响板架固有频率的参数进行了分级，提出了板架固有频率对参数的有限差商敏感性（ＦＤＳ）概念，编制了进行有限差商敏感度计算、连续进行ＦＤＳ分析的程序（ＳＥＮ）。应用表明，该方法合理、可行、有效。
According to the features of calculating the natural frequencies of hull plated grillage with finite element model, this paper classifies the parameters that effect natural frequencies of hull plated grillage and presents the concept of finite difference sensitivity (FDS) of natural frequencies of hull plated grillage against the parameters. A integrated software is developed for FDS analysis and calculation in succession. The results show that method of calculation is reasonable, practical, effective.
出处
《大连水产学院学报》
CSCD
1997年第4期29-36,共8页
Journal of Dalian Fisheries University
基金
"八五"船舶科技预研项目
关键词
船体板架
固有频率
敏感性
hull plated grillage
natural frequency
sensitivity
