| 船舶疲劳强度校核中Weibull形状参数的影响 |
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| 引用本文： | 杜嘉立,杨盐生,郑云峰.船舶疲劳强度校核中Weibull形状参数的影响[J].交通运输工程学报,2003,3(2):31-33,87. |
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| 作者姓名： | 杜嘉立 杨盐生 郑云峰 |
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| 作者单位： | 大连海事大学,航海学院,辽宁,大连,116026 |
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| 基金项目： | 交通部跨世纪人才基金项目 ( 95 -0 5 -0 5 -3 1) |
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| 摘 要： | Weibull形状参数是研究船舶疲劳强度的一项重要参数，它由船长和浪高两个因素决定。利用Weibull形状参数对一艘实船的疲劳寿命进行了计算，结果表明：仍然具有很大的误差，必须根据船舶的实际情况，建立累积损伤模型，确立统一的Weibull形状参数表达式，消除误差，准确地计算船舶结构的疲劳累积损伤度，提高船舶疲劳寿命预报的可靠性。
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| 关 键 词： | 船舶 疲劳强度 Weibull形状参数 疲劳荷载 疲劳寿命 |
| 文章编号： | 1671-1637(2003)02-0031-03 |
Effects of Weibull shape coefficient on ship's fatigue strength examination |
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| DU Jia-li,YANG Yan-sheng,ZHENG Yun-feng.Effects of Weibull shape coefficient on ship''''s fatigue strength examination[J].Journal of Traffic and Transportation Engineering,2003,3(2):31-33,87. |
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| Authors: | DU Jia-li YANG Yan-sheng ZHENG Yun-feng |
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| Abstract: | Weibull shape coefficient k that is decided by ship's length and wave height is very important for studying ship's fatigue strength.Using the coefficient k,an example ship's fatigue life was calculated.It is pointed out that the calculated results have a great error compared with actul case.To reduce the error and calculate fatigue life accurately,the uniform function of coefficient k based on accumulated damage model must be developed according to ship's actul case. 2 tabs,1 fig,8 refs. |
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| Keywords: | ship fatigue strength Weibull shape coefficient fatigue load fatigue life |
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