| 船体梁静水载荷效应统计预报 |
| |
| 引用本文： | 郭昌捷,胡日强.船体梁静水载荷效应统计预报[J].中国造船,1995(3):71-79. |
| |
| 作者姓名： | 郭昌捷 胡日强 |
| |
| 作者单位： | 大连理工大学(郭昌捷)，大连造船新厂(胡日强)，中国船舶科学研究中心(胡嘉骏，沈进威) |
| |
| 基金项目： | “八五”国家重点科技项目 |
| |
| 摘 要： | 船体梁静水剪力、弯矩等是由装载状态决定的载荷效应。营运船舶装载记录表明，实际装载状态具有不确定性，由此导致载荷效应发生变异，其统计特性可利用回归公式或随机模拟原理进行估算或预报。通过对油船、散货船、滚装船及集装箱船约2000种随机工况所作的统计分析，表明其静水弯矩等随装载偏差的变化近似于正态分布律，并具有比船体中剖面模数或钢材屈服极限更为显著的变异性。在船舶结构可靠性分析或理性设计中，合理估算并预报这种及异性是必要的。
|
| 关 键 词： | 船体梁 载荷效应 随机模拟 变异 可靠性 |
STATISTICAL PREDICTION OF STILLWATER LOAD EFFECTS ON HULL GIRDER |
| |
| GUO Chang jie.STATISTICAL PREDICTION OF STILLWATER LOAD EFFECTS ON HULL GIRDER[J].Shipbuilding of China,1995(3):71-79. |
| |
| Authors: | GUO Chang jie |
| |
| Institution: | GUO Chang jie(Dalian University of Technology)HU Riqiang(Dalian New Shipyard)HU Jiajun; SHEN Jinwei(China Ship Scientific Research Center) |
| |
| Abstract: | The real loading conditions of ship in operation are indeterminate, and these induce hull girder still water load effects to be stochastic in nature. The prediction method of a computer-based stochastic modeling is presented and a statistical analysis is preformed with SWBM data from abour 2000 random loading conditions of oil tankers, bulk carrier,ro/ro vessel and containership. The results show that the change of SWBM is close to the normal distribution, and it has a more obvious variation than hull section modulus or yielding limit of steel. It is necessary to estimate and predict the variation in modern design or reliability analysis of ship structure. |
| |
| Keywords: | Ship girder Load effects Stochastic modeling Variation Reliability |
| 本文献已被 CNKI 维普 等数据库收录！ |
