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인공신경망을 이용한 뿌리산업 생산공정 예측 모델 개발

Development of Prediction Model for Root Industry Production Process Using Artificial Neural Network

Journal of the Korean Society for Precision Engineering 2017;34(1):23-27.
Published online: January 1, 2017

1 울산과학기술원 기계공학과

1 Department of Mechanical Engineering, UNIST

#Email: hson@unist.ac.kr, TEL: +82-52-217-2343, FAX: +82-52-217-2409
• Received: October 14, 2016   • Revised: December 2, 2016   • Accepted: December 20, 2016

Copyright © The Korean Society for Precision Engineering

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Development of Prediction Model for Root Industry Production Process Using Artificial Neural Network
J. Korean Soc. Precis. Eng.. 2017;34(1):23-27.   Published online January 1, 2017
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J. Korean Soc. Precis. Eng.. 2017;34(1):23-27.   Published online January 1, 2017
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Development of Prediction Model for Root Industry Production Process Using Artificial Neural Network
Image Image Image Image
Fig. 1 Gaussian distribution plots of clamping force and metal pressure (s CF)
Fig. 2 Structure of artificial neural network
Fig. 3 Comparison of experimental data and prediction by neural network
Fig. 4 Test error of prediction result
Development of Prediction Model for Root Industry Production Process Using Artificial Neural Network

Comparison of mean value difference between OK and bad step

No. Variables Mean Percentage
1 Height of die-cast 0.0373 0.0029
2 Clamping force [kN] 28.039 0.2025
3 Injection time [sec] 0.0497 0.8184
4 End position of
plunger stroke [mm]
8.0337 1.0469
5 Final conversion standard 0.0865 2.9778
6 Conversion v > p [mm] 30.123 4.0595
7 Cavity filling [mm] 40.17 5.5131
8 Position of brake [mm] 43.889 6.0095
9 Clamping stroke 4 [mm] 0.2225 6.159
10 Position of metal [mm] 40.17 7.8977
11 Clamping stroke 2 [mm] 0.3016 8.125
12 Cavity filling time [sec] 0.4605 8.1564
13 Clamping stroke 3 [mm] 0.3375 9.0632
14 Clamping stroke 1 [mm] 0.374 9.7816
15 Pressure increment time [sec] 0.0064 14.389
16 Biscuit thickness [mm] 8.0337 35.472
17 Max metal pressure PI-Phase [bar] 491.31 58.509
18 Velocity of plunger [m/s] 2.6093 61.321
19 Velocity of metal [m/s] 47.313 62.335
20 Metal pressure after tR0 [bar] 473.91 66.928
21 Amplification stroke [mm] 32.136 82.992
22 Metal pressure(s CF) [bar] 41.519 84.881
23 Cavity filling time [sec] 0.0866 156.20
24 Cycle time [sec] 515.73 658.23

Comparison of RMS error of each structures

Structures RMS error
6-3-1 4.3185
6-6-1 3.3311
6-12-1 3.7776
6-13-1 3.7663
6-3-3-1 2.5500
6-6-6-1 1.9371
6-12-12-1 3.4137
6-13-13-1 2.4872
Table 1 Comparison of mean value difference between OK and bad step
Table 2 Comparison of RMS error of each structures