Research on Prediction Method of Performance Degradation of Flexible Optoelectronic Film Material Processing Equipment Based on Adaptive Fuzzy Clustering

Table 3

The fuzzy membership function for calculating the roller performance degradation.

Roller shaft type	Membership function
Unwinding roller shaft (eigenvalue is RMS)
Guide roller shaft (eigenvalue is RMS)
Drive roller shaft (eigenvalue is RMS)
Winding roller shaft (eigenvalue is RMS)
Unwinding roller shaft (eigenvalue is Kurtosis)
Guide roller shaft (eigenvalue is Kurtosis)
Drive roller shaft (eigenvalue is Kurtosis)
Winding roller shaft (eigenvalue is Kurtosis)