| 基于小波分析的水电站动荷载识别 |
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| 引用本文： | 严昇,严登华,秦天玲,王浩,王刚,胡勇.基于小波分析的水电站动荷载识别[J].水利水电技术,2014,45(2):17-21. |
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| 作者姓名： | 严昇 严登华 秦天玲 王浩 王刚 胡勇 |
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| 作者单位： | （华北电力大学可再生能源学院，北京102206） |
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| 摘 要： | 结合西龙池水电站厂房的实际振动观测资料，利用小波分析提取出水力脉动荷载的时频信号，并利用遗传算法识别出该荷载的瞬时最大值。基于FFT变换的识别进行对比分析，说明了小波分析在水电站动荷载识别中的意义和必要性。研究结果可为今后深入探讨水电站结构的振源形式和动力计算分析提供参考。
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| 关 键 词： | 西龙池水电站 厂房 结构振动 识别 小波分析 水力脉动 |
| 收稿时间： | 2012-09-24 |
Tracing calculation based evaluation on contribution rate of watershed non-point source pollution load into river |
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| YAN Sheng,YAN Denghua,QIN Tianling,WANG Hao,WANG Gang,HU Yong.Tracing calculation based evaluation on contribution rate of watershed non-point source pollution load into river[J].Water Resources and Hydropower Engineering,2014,45(2):17-21. |
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| Authors: | YAN Sheng YAN Denghua QIN Tianling WANG Hao WANG Gang HU Yong |
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| Affiliation: | （School of Renewable Energy，North China Electric Power University，Beijing102206，China） |
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| Abstract: | Based on GIS and the improved export coefficient method，the slope surface non-point source pollution producing process is coupled with that of the pollutants migration and transformation，and then a tracing calculation based method for evaluation on contribution rate of the watershed non-point source pollution load into river is put forward herein. This method can objectively identify the contributions from all the catchment areas to the pollution of river body and，moreover，overcome the deficiency of the shortage of the data of water quality; with which a study on the actual case of Luanhe River Basin is made and the result can provide reference for the pollution control of river basin as well. |
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| Keywords: | non-point source pollution contribution rate of pollution load into the river tracing calculation export coefficient method Luanhe River Basin |
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