摘要
提出一种基于分形和模糊技术的气固流化床流型辨识的新方法 ,将分形技术应用在气固流化床压力波动信号的分析中 ,提取出信号特征值Hurst指数 ,同时结合模糊识别 ,建立模糊识别函数 ,由此来区分气固流化床的不同流型。初步研究表明 ,基于分形和模糊识别的流型辨识能够达到较高的正确率。
A new method for identification of flow regime of gas-solid fluidized bed using fractal and fuzzy recognition is presented.Using fractal technology,Hurst exponent of pressure fluctuation signal of gas-solid fluidized bed is calculated,and fuzzy recognition rule is established using fuzzy recognition technology.Flow regime is identified using Hurst exponent and fuzzy recognition rule.The experimental result shows that the method is effective.
出处
《化工自动化及仪表》
CAS
北大核心
2004年第1期48-49,59,共3页
Control and Instruments in Chemical Industry
基金
国家自然科学基金 (青年基金 )资助项目(2 970 60 0 8)
关键词
分形
模糊识别
气固流化床
流型
fractal
fuzzy recognition
gas-solid fluidized bed
flow regime
