web n. 1.蜘蛛网;蛛网状东西,网状组织;【纺织;印染】棉[毛]网;〔the W-〕【计算机】万维网(= World Wide Web)。 2.(一匹)布,织物。 3.编织品,捏造的东西;做成的圈套。 4.(水鸟的)蹼,掌皮;羽瓣。 5.一大卷[筒]印刷用纸。 6.【机械工程】连结板;金属薄片[薄条];【建筑】工字梁腹(部);圆拱;【解剖学】膜。 a web of railroads 铁路网。 a web of lies 一大片编造的谎话。 a web of life [destiny] 命运。 the web of a saw 锯身。 the web of a sword 刀身。 a twist web 【机械工程】麻花钻心。 vt. (-bb-) 1.在…上织网;丝网般密布在…上。 2.用丝网网住;使入圈套。 vi. 1.形成网状。 2.织丝网。
The genetic algorithm approach is used in this study to search for the optimal design values of pillar , deck stiffened panels , transverse web frames , flexible structures and side shell stiffened plates 在最佳化分析中采用基因演算法以随机搜寻方式寻找出汽车运送船上各层甲板中之支柱、加强肋板架、横向肋骨、侧板板架以及挠性结构的最佳化之设计尺寸。
Furthermore , the dynamic responses of single deck supported by single pillar are also considered as for the fatigue strength analysis , the fatigue life assessment of the junctions of transverse web frame and side shell , and the junction of pillar and transverse web frame are investigated 在疲劳强度分析中,本文针对汽车运送船甲板下方横向桁材与侧板接合部分发及舱柱与横向桁材接合部分进行疲劳寿命分析。
Abstract : fatigue cracks in ship hull structures are most likely to occur in the highly stressed structural details . the conventional fatigue analysis is largely dependent on the determination of stress concentration factors ( scfs ) at the locations considered . this paper is concerned with the stress concentration of cutout in transverse web for longitudinal stiffener . a series of finite element models is carried out for the stress analysis of predefined structural details . the tabulated scfs of typical cutouts ( abs tanker rules ) in transverse web for longitudinal stiffeners are presented based on the finite element analysis ( fea ) results 文摘:疲劳裂纹往往发生在船舶结构的局部高应力区,而疲劳分析结果通常取决于任何准确确定结构的应力集中系数.本文研究为铺设纵骨而在舱壁板上开孔的应力集中,采用有限元方法对预先给定的结构进行应力分析,基于有限元计算结果给出了舱壁板典型开孔(参见abs油船规范)的应力集中系数表
A lot of oil tanker failure was reported in recent years , which attracted much attention of navigation industry . after investigation and analysis , fatigue crack was suspected to be one of main causes . the fatigue cracks were discovered mostly on the side longitudinals at the connections to transverse bulkheads or transverse webs 近年来,世界上有大量的油轮在海上失事,这一现象引起了各国航运界的高度重视,通过组织力量对油轮失事原因进行调查分析,认为一个重要的原因是舱内肋骨与上下翼舱的连接处的疲劳强度不足,导致舱室进水,然后波纹横舱壁破坏导致进水过多而沉没。