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CFRP 고속검사 시스템의 능동 제진용 VCM 최적 설계

Design of a Voice Coil Motor for Active Vibration Isolator of CFRP High Speed Inspection System

Journal of the Korean Society for Precision Engineering 2019;36(1):29-35.
Published online: January 1, 2019

1 한국생산기술연구원 생산시스템그룹

2 한국산업기술대학교 메카트로닉스공학과

1 Manufacturing System R&D Group, Korea Institute of Industrial Technology(KITECH)

2 Department of Mechatronics Engineering, Graduate School, Korea Polytechnic University

#E-mail: khkim12@kpu.ac.kr, TEL: +82-31-8041-0460
• Received: November 14, 2018   • Revised: December 4, 2018   • Accepted: December 5, 2018

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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Citations

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  • An Active Geophone Sensor with Optimized State Variable Filter for Measuring Low-Band Frequencies
    Jinsoo Choi, Hongki Yoo, Eunjong Choi, Kihyun Kim, Hyo-Young Kim
    International Journal of Precision Engineering and Manufacturing.2024; 25(5): 981.     CrossRef
  • Effect of inertia variations for active vibration isolation systems
    Jinsoo Choi, Kihyun Kim, Hyoyoung Kim, SeokWoo Lee
    Precision Engineering.2020; 66: 507.     CrossRef

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Design of a Voice Coil Motor for Active Vibration Isolator of CFRP High Speed Inspection System
J. Korean Soc. Precis. Eng.. 2019;36(1):29-35.   Published online January 1, 2019
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Design of a Voice Coil Motor for Active Vibration Isolator of CFRP High Speed Inspection System
J. Korean Soc. Precis. Eng.. 2019;36(1):29-35.   Published online January 1, 2019
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Design of a Voice Coil Motor for Active Vibration Isolator of CFRP High Speed Inspection System
Image Image Image Image Image Image Image Image Image Image Image Image
Fig. 1 Size limitations of VCM
Fig. 2 Schematic and Design parameters of VCM
Fig. 3 Leakage fluxes in VCM
Fig. 4 Magnetic circuit for VCM
Fig. 5 Optimization processes with various starting points
Fig. 6 Verification experiment for force constant
Fig. 7 Inductance measurement of VCM
Fig. 8 Inductance measurement of VCM
Fig. 9 System configuration
Fig. 10 Control block diagram for overall system
Fig. 11 Experimental setup for active vibration isolator
Fig. 12 Performance of active vibration isolator with optimized VCM
Design of a Voice Coil Motor for Active Vibration Isolator of CFRP High Speed Inspection System

Range of design parameters

(Unit: mm)

Variables lm tm tc dc ts wm
Range 0 - 120 0 - 13 0 - 12 0 - 2 0 - 14 0 - 70

Analogy between electric and magnetic circuits

Electric circuit Magnetic circuit
Current (I) Magnetic Flux (∅)
Resistance (R) Magnetic reluctance (1/P)
Voltage (V) Magnetomotive force (Fm)
Ohm’s Law
V = IR Fm = ϕ/P

Starting points for optimization process

Optimal parameters (tm, tc, lm, ts, dc, wm)
Case1 : (13, 10, 95, 11.25, 0.8, 65)
Case2 : (10, 14, 100, 8.25, 0.6, 40)
Case3 : (6, 15, 75, 9.250, 0.70, 30)
Case4 : (8, 7, 11.0, 12.250, 0.9, 50)

Optimized results for VCM

Optimal values (mm)
Magnet thickness (tm) 12.9
length (lm) 87.5
width (wm) 40.3
Coil thickness (tc) 10.4
Yoke thickness (ts) 12.9
Flux density (Bg) (T) 0.59
Number of coil turn (n) 580
Resistor (Rcoil) (Ω) 8
Objective (N/A)
Optimized Force constant (Kf) 60.03

Experimental results of force constant

No. Force constant (N/A)
1 59.71
2 59.65
3 59.62
4 59.62
5 59.64
Table 1 Range of design parameters (Unit: mm)
Table 2 Analogy between electric and magnetic circuits
Table 3 Starting points for optimization process
Table 4 Optimized results for VCM
Table 5 Experimental results of force constant