【摘要】 开发了Jacobian算法计算混沌动力系统Lyapunov指数谱的软件，用此软件分析了气固流化床压力波动动力学行为。研究表明，Lyapunov指数谱能很好地反映流化床不同气速下的动力学行为。对流态化系统，首次证实了关联维与Lyapunov指数谱满足Kaplan-Yorke假设，并证明了流化床动力学具有耗散结构性质。更多还原

【Abstract】 Chaotic Lyapunov exponents spectrum was used to analyze the dynamic behavior of gas-solid fluidized bed with 0.09m in diameter and 1m in height. A software was exploited for computing spectrum of Lyapunov exponents in chaotic dynamic system. The dynamic behavior of pressure fluctuation in gas-solid fluidized bed was analyzed by this software. The research showed that dynamic behavior at different gas velocity could be embodied very well from spectrum of Lyapunov exponents. It was confirmed that in gas-solid fluidized bed system the relationship between correlation dimension and spectrum of Lyapunov exponents meets Kaplan-Yorke conjecture. It was verified too that the dynamic character of gas-solid fluidized bed was of dissipative structure.更多还原