Quality Prediction and Control of Reducing Pipe Based on EOS-ELM-RPLS Mathematics Modeling Method

Table 2

Variable table for modeling of reducing tube quality.

Ser. number	Variable name	Variable meaning
1	𝑥1,𝑥2,𝑥3	Motor speed, current, and torque of Number 1 reducing mill
2	𝑥4,𝑥5,𝑥6	Motor speed, current, and torque of Number 2 reducing mill
3	𝑥7,𝑥8,𝑥9	Motor speed, current, and torque of Number 3 reducing mill
4	𝑥10,𝑥11,𝑥12	Motor speed, current, and torque of Number 4 reducing mill
5	𝑥13,𝑥14,𝑥15	Motor speed, current, and torque of Number 5 reducing mill
6	𝑥16,𝑥17,𝑥18	Motor speed, current, and torque of Number 6 reducing mill
7	𝑥19,𝑥20,𝑥21	Motor speed, current, and torque of Number 7 reducing mill
8	𝑥22,𝑥23,𝑥24	Motor speed, current, and torque of Number 8 reducing mill
9	𝑥25,𝑥26,𝑥27	Motor speed, current, and torque of Number 9 reducing mill
10	𝑥28,𝑥29,𝑥30	Motor speed, current, and torque of Number 10 reducing mill
11	𝑥31,𝑥32,𝑥33	Motor speed, current, and torque of Number 11 reducing mill
12	𝑥34,𝑥35,𝑥36	Motor speed, current, and torque of Number 12 reducing mill
13	𝑥37	The temperature of shell
14	𝑥38	The transverse wall thickness of shell
15	𝑥39	The longitudinal wall thickness of shell