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Table 3 The neurons weights and biases for the neural network for the mean and maximum thrust force and surface roughness

From: Modelling of cutting force and surface roughness of ultrasonic-assisted drilling using artificial neural network

Layer

FZ mean

Fz max

Ra

All

W1

W2

W3

b

W1

W2

W2

b

W1

W2

W3

b

W1

W2

W3

b

1

 − 0.2

1.5

 − 2.7

3

2.9

0.9

0.4

 − 2.9

 − 2.7

 − 0.1

1.4

2.9

3

 − 0.6

0.5

 − 2.8

2

 − 1.1

 − 1.7

2.2

2.3

3.3

 − 0.1

1.5

 − 1.8

 − 2.1

1.7

 − 2

2.7

1.8

1.6

 − 0.8

 − 2.5

3

 − 1.6

 − 1.6

 − 2.3

1.4

 − 0.3

 − 3.3

 − 0.6

2.3

 − 1.9

0.4

2.7

2.6

 − 3

 − 1

 − 0.1

1.6

4

2.8

0.2

 − 1.1

 − 1

1.7

 − 2

1.3

 − 0.7

 − 1.6

 − 2.7

0.6

1.5

1.5

 − 2.5

0.5

 − 1.1

5

 − 1.8

0.3

 − 1.9

0.3

0.4

 − 2.1

 − 2.3

0.1

 − 1.4

2.2

 − 1.3

0.5

2.1

0.4

2.2

 − 0.4

6

1.8

 − 0.3

2.7

0

2.3

 − 0.7

 − 2

0.8

 − 1.4

 − 2.6

0.7

 − 0.2

1.9

 − 1

 − 2.6

1.1

7

 − 1.8

 − 1.2

1.3

 − 0.9

2.8

0.8

0.8

1

 − 2.6

1.8

2.6

 − 1.6

2.7

 − 0.3

0.9

1.1

8

1.2

 − 1

2

2.2

 − 2.7

1.6

0.5

 − 1.8

1.4

 − 2.5

0.8

1.5

0.3

 − 0.5

2.9

1.9

9

0.8

 − 2.8

1.4

2.1

 − 0.1

1.1

 − 3.2

2.4

2.6

 − 1.2

 − 0.5

2.4

1

 − 1.8

 − 2.6

2.1

10

1.5

 − 0.4

 − 2.6

3

 − 1.4

1.9

1.2

 − 3.4

 − 1.1

3.8

 − 0.7

 − 2.3

 − 3.1

 − 0.2

0.2

 − 3

Output

 

 − 0.1

 

 − 0.5

 

0.6

 

0.5

 − 0.1

 − 0.2