| 荷载平稳二项随机过程简化组合方法 |
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| 引用本文： | 周道成,段忠东,欧进萍.荷载平稳二项随机过程简化组合方法[J].哈尔滨工业大学学报,2009,41(6). |
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| 作者姓名： | 周道成 段忠东 欧进萍 |
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| 作者单位： | 周道成,段忠东,ZHOU Dao-cheng,DUAN zhong-dong(哈尔滨工业大学,土木工程学院,哈尔滨,150090);欧进萍,OU Jin-ping(哈尔滨工业大学,土木工程学院,哈尔滨,150090;大连理工大学,土木水利学院,辽宁,大连,116024) |
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| 基金项目： | 国家自然科学基金，中国博士后特别基金 |
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| 摘 要： | 为了解决荷载平稳二项随机过程组合方法在求解时段组合幅值的最大熵概率密度函数时求解高度非线性方程组计算复杂,不便于实际工程应用的不足.本文根据荷载时段组合幅值的概率特点,以两参数的极值Ⅰ型来描述其概率特征,建立了简化的组合方法.根据数值模拟试验和实测风浪资料计算结果表明本文极值Ⅰ型与最大熵分布都能很好的描述时段组合幅值的概率特征,并且具有一致性;当计算不同重现期极值组合荷载时,本文简化方法计算的结果偏于保守.
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| 关 键 词： | 平稳二项随机过程 荷载简化组合方法 极值Ⅰ型 |
A simplified combination method for stationary binomial process of loads |
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| ZHOU Dao-cheng,DUAN zhong-dong,OU Jin-ping.A simplified combination method for stationary binomial process of loads[J].Journal of Harbin Institute of Technology,2009,41(6). |
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| Authors: | ZHOU Dao-cheng DUAN zhong-dong OU Jin-ping |
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| Affiliation: | ZHOU Dao-cheng1,DUAN zhong-dong1,OU Jin-ping1,2(1. School of Civil Engineering,Harbin Institute of Technology,Harbin 150090,China,2. School of Civil Engineering and Hydraulic,Dalian University of Technology,Dalian 116024,China) |
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| Abstract: | Aimed at the complex calculation for the combination method of stationary binomial process of loads in solving the maximum entropy distribution of load,a simplified combination method is presented by describing the probabilistic property of the extreme value of combination loads in time interval through the Extreme I Distribution with two parameters. The calculating results with numerical simulation data as well as observed wind and wave data indicate that both the Extreme I Distribution and the maximum ent... |
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| Keywords: | stationary binomial process simplified combination method of loads extreme I distribution |
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