| 大颗粒循环流化床压力波动信号分析 |
| |
| 引用本文： | 刘燕,张少峰,王琦. 大颗粒循环流化床压力波动信号分析[J]. 化学反应工程与工艺, 2007, 23(4): 302-308 |
| |
| 作者姓名： | 刘燕 张少峰 王琦 |
| |
| 作者单位： | 河北工业大学化工学院,天津,300130;河北工业大学化工学院,天津,300130;河北工业大学化工学院,天津,300130 |
| |
| 摘 要： | 应用功率谱分析法、R/S分析法及混沌分析法对大颗粒循环流化床压力波动信号的性质和组成进行了研究.功率谱分析法和R/S分析法从两个不同的角度均得出了压力波动信号中存在一定的周期成分,而混沌分析得出的关联维和K熵进一步证实了压力波动信号表面上是随机的,但实质上具有确定性,即表明大颗粒的气液固三相循环流化床的压力波动信号具有混沌信号的特征.
|
| 关 键 词： | 功率谱分析 R/S分析 混沌分析 压力波动信号 大颗粒循环流化床 |
| 文章编号： | 1001-7631（2007）04-0302-07 |
| 修稿时间： | 2006-11-27 |
Analysis on Pressure Fluctuation in Coarse Circulation Fluidized Bed |
| |
| Liu Yan,Zhang Shaofeng,Wang Qi. Analysis on Pressure Fluctuation in Coarse Circulation Fluidized Bed[J]. Chemical Reaction Engineering and Technology, 2007, 23(4): 302-308 |
| |
| Authors: | Liu Yan Zhang Shaofeng Wang Qi |
| |
| Affiliation: | School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China |
| |
| Abstract: | The properties and components of pressure fluctuation signals in coarse circulation fluidized bed was researched by power spectrum analysis, R/S analysis and chaos analysis. Periodic signal was found existing in pressure fluctuation by power spectrum analysis and R/S analysis and pressure fluctuation was confirmed to be random periodic behavior in appearance but certain in fact by correlation dimension and Kolmogorv entropy obtained by chaos analysis. In other words, the pressure fluctuation signal in coarse circulation fluidized bed with big particles had chaos characteristic. |
| |
| Keywords: | power spectrum analysis R/S analysis chaos analysis signals of pressure fluctuation three-phase circulation fluidized bed |
| 本文献已被 维普 万方数据 等数据库收录！ |
