Modelling and Simulation of the Filament Number Distribution of Cocoon Layer in Raw Silk Threads

The probability distribution of the filament number of each cocoon layer (FNCL) in the raw silk by fixed number of cocoons reeling process was discussed. The probability distribution and statistic characteristic in stable reeling state were given. Computer simulation of reeling process was undertaken to verify the applicability and theoretical results. The model of stochastic process and the analysis results possess universality.