气-固流化床中颗粒碰撞压力信号自由度的确定

Determining the Number of Degrees Freedom of Particle Colliding Pressure Signal in Gas-Solid Fluidized Bed

混沌理论中 ,体系的自由度与体系的某个变量的信号的时间序列在相空间重构中的最小嵌套维具有等同性。根据这一概念 ,用LiangyueChao提出的确定无标度时间序列的最小嵌套维的方法 ,通过对气 固流化床中颗粒碰撞压力信号的无标度时间序列在相空间重构中最小嵌套维的计算 ,确定了气 固流化床中颗粒碰撞压力的自由度为

In chaotic analysis,the number of degrees freedom of a complicated system is equal to the minimum embedding dimension of the scalar time series of some one variant of this system in reconstruction phase space.According to this theory,the number of degrees freedom of a complicated system can be determined by calculating the minimum embedding dimension in reconstruction phase space of some one variant's time series of this system.In this paper,the methed for determining the minimum dimension of a scalar time series,which was proposed by Liangyue Chao,was used to calculate the minimum dimension of the time series of particle colliding pressure signal,in order to determine the number degrees freedom of particle colliding pressure in gas-solid fluidized bed.