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엔진 마운트 최적 댐핑 제어와 MR 마운트에의 적용

Optimal Damping Control of Engine Mount and It’s Application to MR Mount

Journal of the Korean Society for Precision Engineering 2022;39(8):565-573.
Published online: August 1, 2022

1 가천대학교 기계공학과

1 Department of Mechanical Engineering, Gachon University

#E-mail: mskang@gachon.ac.kr, TEL: +82-31-750-5524
• Received: April 30, 2022   • Revised: May 25, 2022   • Accepted: May 30, 2022

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

Citations to this article as recorded by  Crossref logo
  • Influence of Magnetic-Viscous Friction on the Properties of a Magnetorheological Hydraulic Mount
    A. V. Vanyagin, B. A. Gordeev, A. I. Ermolaev, S. N. Okhulkov, A. S. Plekhov
    Russian Engineering Research.2024; 44(10): 1425.     CrossRef

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Optimal Damping Control of Engine Mount and It’s Application to MR Mount
J. Korean Soc. Precis. Eng.. 2022;39(8):565-573.   Published online August 1, 2022
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J. Korean Soc. Precis. Eng.. 2022;39(8):565-573.   Published online August 1, 2022
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Optimal Damping Control of Engine Mount and It’s Application to MR Mount
Image Image Image Image Image Image Image Image Image Image Image Image Image
Fig. 1 Hydraulic mount and its dynamic model
Fig. 2 FRF L(jω) with various friction R
Fig. 3 FRF N(jω) with various friction R
Fig. 4 FRF |L(jω)| with optimal damping RL*
Fig. 5 FRF |L(jω)| & |N(jω)| with optimal damping R*
Fig. 6 Flow through inertia track
Fig. 7 (a) Magnitude of L(jω), and (b) Magnitude of N(jω) w/ and w/o optimal damping control
Fig. 8 Vehicle displacement
Fig. 9 Displacement transmission ratio w/ and w/o optimal damping control
Fig. 10 Control input force of optimal damping control
Fig. 11 Excitation force of engine
Fig. 12 Force transmission ratio w/ and w/o optimal damping control
Fig. 13 Control input force of optimal damping control
Optimal Damping Control of Engine Mount and It’s Application to MR Mount
Displacement TR Force TR
T.F. Z s Y s = L s F t s F e s = N s
P.F ω L * = ω 1 2 + ω 2 2 2 ω N * = 2 ω 1 2 ω 2 2 ω 1 2 + ω 2 2
O.D. R L * = 1 c 1 ω 1 ω 2 2 ω 1 2 + ω 2 2 R N * = 1 c 1 1 ω 2 2 ω 1 2 + ω 2 2 2
M.V. L j ω L * = N j ω N * = ω 1 2 + ω 2 2 ω 2 2 - ω 1 2
Displacement TR Force TR
P.F. [Hz] ω L * = 15.84 ω N * = 14.99
O.D. R L * = 2.875 × 10 8 R N * = 3.038 × 10 8
M.V. L ω L * = N ω N * = 3.09
Table 1 Summary of optimal damping design

T.F.: Transfer Function P.F.: Peak FrequencyO.D.: Optimal Damping M.V.: Maximum ValueT.R.: Transmissibility

Table 2 System parameters for simulation
Table 3 System parameters

P.F.: Peak Function T.R.: TransmissibilityO.D.: Optimal Damping M.V.: Maximum Value