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| 近底流速试验研究及随机相位分布 | |
| 引用本文： | 刘丽,魏清华,杨成渝.近底流速试验研究及随机相位分布[J].水运工程,2010(3). |
| 作者姓名： | 刘丽 魏清华 杨成渝 |
| 作者单位： | 1. 重庆交通大学应用技术学院,重庆,400074 2. 重庆市交通规划勘察设计院,重庆,400067 3. 重庆交通大学河海学院,重庆,400074 |
| 摘 要： | 在明渠清水条件下,测量不同水深情况下近底流速瞬时分布,得知近底流速符合平稳随机过程。依据大量实测试验数据,利用傅立叶变换将时域内流速脉动信号转化到频域内进行谱分析,应用统计分析发现随机相位角服从正态分布,为近底流速谱的建立奠定基础。 |
| 关 键 词： | 近底流速 试验研究 平稳随机过程 谱分析 |
Experimental study on near bed velocity and probability of stochastic phase |
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| LIU Li,WEI Qing-hua,YANG Cheng-yu.Experimental study on near bed velocity and probability of stochastic phase[J].Port & Waterway Engineering,2010(3). | |
| Authors: | LIU Li WEI Qing-hua YANG Cheng-yu |
| Institution: | LIU Li1,WEI Qing-hua2,YANG Cheng-yu3(1.College of Applied Science , Technology in Chongqing Jiaotong University,Chongqing 400074,China,2.Chongqing Communications Planning,Survey & Design Institute,Chongqing 400067,3.School of River , Ocean Engineening,Chongqing Jiaotong University,China) |
| Abstract: | The data of near-bed velocity are very important and of great application value to engineering.In condition of open channel and rinsing water,the data of near-bed velocity are acquired which accord with stationary stochastic processes.According to the experiment data,the spectum characteristics of velocity are transformed from current velocity pluse signal in time domain to signal in frequency domain with FFT.The random phase angle is close to the normal distribution based on the mathematical stastics which... |
| Keywords: | near-bed velocity experimental study stochastic process spectrum analysis |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |