| 气固流化床混沌动力结构突变分析 |
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| 引用本文： | 王春华,仲兆平,李睿,鄂加强.气固流化床混沌动力结构突变分析[J].化工学报,2010,61(1):43-48. |
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| 作者姓名： | 王春华 仲兆平 李睿 鄂加强 |
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| 作者单位： | 东南大学能源与环境学院;湖南大学机械与运载工程学院 |
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| 摘 要： | A new method called structural catastrophe analysis was applied to the analysis of pressure fluctuation time series with chaotic and fractal characteristics in gas-solids fluidized bed.In every type of fixed bed，bubbling bed，turbulent bed，fast fluidized bed and pneumatic conveying stage，pressure fluctuation signals were sampled and dynamic exponents were solved.The changes of Tmean and Tmax in different types of fluidized bed were analyzed and summarized.It was concluded that Tmean and Tmax can indicate different types of fluidized，and Tmax can also be recognized as a new characteristic parameter in addition to correlation parameters，LE exponent and K entropy.
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| 关 键 词： | 流化床 突变理论 压力脉动 混沌 |
| 收稿时间： | 2009-6-18 |
| 修稿时间： | 2009-9-21
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Analysis of gas-solids fluidized bed by chaotic dynamic structural catastrophe theory |
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| WANG Chunhua,ZHONG Zhaoping,LI Rui,E Jiaqiang.Analysis of gas-solids fluidized bed by chaotic dynamic structural catastrophe theory[J].Journal of Chemical Industry and Engineering(China),2010,61(1):43-48. |
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| Authors: | WANG Chunhua ZHONG Zhaoping LI Rui E Jiaqiang |
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| Abstract: | A new method called structural catastrophe analysis was applied to the analysis of pressure fluctuation time series with chaotic and fractal characteristics in gas-solids fluidized bed.In every type of fixed bed,bubbling bed,turbulent bed,fast fluidized bed and pneumatic conveying stage,pressure fluctuation signals were sampled and dynamic exponents were solved.The changes of T_(mean) and T_(max) in different types of fluidized bed were analyzed and summarized.It was concluded that T_(mean) and T_(max) can indicate different types of fluidized,and T_(max) can also be recognized as a new characteristic parameter in addition to correlation parameters,LE exponent and K entropy. |
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| Keywords: | fluidized bed catastrophe theory pressure fluctuation chaos |
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