【摘要】 应用功率谱分析、R/S分析、混沌分析等对气固流化床压力波动信号的性质、组成进行了定量解剖。研究表明 ,流态化压力波动信号由两部分构成 :其一是本质随机性信号 ,如噪音 ;其二是本质确定性信号。本质确定性信号又有两种表现形式 :其一是周期信号 ;其二是随机信号 ,这种表面随机而本质确定性的信号就是混沌信号更多还原

【Abstract】 The properties and components of pressure fluctuation signals in gas solid fluidized bed was dissected quantitatively by using power spectrum analysis,R/S analysis and chaos analysis.This research shows that signals of prseeure fluctuation can be decomposed into two parts.One is random signal,such as noise;the other is deterministic signal,such as periodic signaland chaos signal.Chaos signal is seeming as random aperiodic behavior and is the product of determinism.更多还原