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하모닉 드라이브용 올댐 커플링 비틀림 성능해석

Torsional Performance Analysis of Oldham Coupling for Harmonic Drive

Journal of the Korean Society for Precision Engineering 2021;38(9):701-705.
Published online: September 1, 2021

1 한양대학교 대학원 기계설계공학과

2 명지대학교 기계공학과

1 Department of Mechanical Design Engineering, Graduate School, Hanyang University

2 Department of Mechanical Engineering, Myungji University

#E-mail: highself@hanyang.ac.kr, TEL: +82-31-501-2239
• Received: May 13, 2021   • Revised: June 25, 2021   • Accepted: June 30, 2021

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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  • Method for Radial Stiffness Measurement of Strain Wave Gear Flexspline
    Sangwoong Lee, Daegwon Koh, Jong-Geol Kim, Murim Kim
    Journal of the Korean Society for Precision Engineering.2024; 41(12): 923.     CrossRef

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Torsional Performance Analysis of Oldham Coupling for Harmonic Drive
J. Korean Soc. Precis. Eng.. 2021;38(9):701-705.   Published online September 1, 2021
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J. Korean Soc. Precis. Eng.. 2021;38(9):701-705.   Published online September 1, 2021
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Torsional Performance Analysis of Oldham Coupling for Harmonic Drive
Image Image Image Image Image Image Image Image
Fig. 1 Components of the harmonic drive
Fig. 2 Components of the wave generator (W/O curved washer)
Fig. 3 Convergence test with mesh size
Fig. 4 Contact definition points for simulation
Fig. 5 Contact option for setting tolerance (Example)
Fig. 6 Definition of backlash
Fig. 7 Torque-rotation angle diagram with tolerances
Fig. 8 Graph of backlash with tolerances
Torsional Performance Analysis of Oldham Coupling for Harmonic Drive

Properties of the oldham coupling components

Hub & Insert Oval cam
Young’s modulus [GPa] 71 210
Poisson’s ratio 0.33 0.29
Density [g/cm3] 2.63 7.83

Values of backlash with tolerances

Tolerance [μm] 0 5 10 15 20 22
Backlash [Arc.min] 0 2.0 6.3 11.0 15.9 17.4
Table 1 Properties of the oldham coupling components
Table 2 Values of backlash with tolerances