Digital Twins Model of Industrial Product Management and Control Based on Lightweight Deep Learning

Table 1

Contact settings of flange nodes.

Number	Contact type	Target surface	Interface
1	Face-to-face contact	Stainless steel flange	Nut torus
2	Face-to-face contact	Stainless steel flange	Aluminum alloy flange
3	Face-to-face contact	Q235 cushion block	Aluminum alloy flange
4	Face-to-face contact	Q235 cushion block	Nut torus
5	Face-to-face contact	Q235 cushion block hole	Screw
6	Face-to-face contact	Flange hole	Screw