Table 1 Definition of variables
Parameter | Definition |
|---|---|
q | Bolt tightness state \({{q}} \in {{\{ 1,2,3,4,5,6,7\} }}\) |
p | Number of points on center-line |
n | Number of neural network nodes |
k | k-nearest neighbor points in PCA method |
D | Projection distance |
L | Predicted geometric deformation state of fastener |
Ln | Fastener tightness state transfer |