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기어시스템에서 설계변수에 따른 전달오차와 물림강성 해석

Transmission Error and Meshing Stiffness Analysis due to Design Parameter in Gear System

Journal of the Korean Society for Precision Engineering 2022;39(4):263-268.
Published online: April 1, 2022

1 인제대학교 기계공학과

2 뮐러비비엠코리아㈜

3 인제대학교 전자IT기계자동차공학부

1 Department of Mechanical Engineering, Inje University

2 Muller BBM Korea Co., Ltd.

3 Department of Electronic Telecommunications, Mechanical and Automotive Engineering, Inje University

#E-mail: mechhsk@inje.ac.kr, TEL: +82-55-323-9748
• Received: August 19, 2021   • Revised: December 9, 2021   • Accepted: January 5, 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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  • Development of a Prediction Model for the Gear Whine Noise of Transmission Using Machine Learning
    Sun-Hyoung Lee, Kwang-Phil Park
    International Journal of Precision Engineering and Manufacturing.2023; 24(10): 1793.     CrossRef

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Transmission Error and Meshing Stiffness Analysis due to Design Parameter in Gear System
J. Korean Soc. Precis. Eng.. 2022;39(4):263-268.   Published online April 1, 2022
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Transmission Error and Meshing Stiffness Analysis due to Design Parameter in Gear System
J. Korean Soc. Precis. Eng.. 2022;39(4):263-268.   Published online April 1, 2022
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Transmission Error and Meshing Stiffness Analysis due to Design Parameter in Gear System
Image Image Image Image Image Image Image Image
Fig. 1 Definition of transmission error
Fig. 2 FE modeling of target gears for analysis
Fig. 3 Boundary condition for analysis
Fig. 4 Transmission error according to compensation rate and load torque in spur gear #1, #2
Fig. 5 Test bench for gear experiment
Fig. 6 Transmission error according to compensation rate and load torque in spur gear #1, #2
Fig. 7 Contour plot of transmission error PTP due to load torque and compensation rate variation in spur gear #1, #2
Fig. 8 Predicted meshing stiffness due to load torque and gear module
Transmission Error and Meshing Stiffness Analysis due to Design Parameter in Gear System

Target gears design parameters

Parameter Spur
#1 #2
Number of teeth 36 24
Normal module [mm] 1.59 2.39
Normal pressure angle [o] 20 20
Normal helix angle [o] 0 0
Face width [mm] 14.50 19.50
Center distance [mm] 57.29 57.29
Tooth addendum [mm] 1.59 2.39
Tooth dedendum [mm] 1.99 2.99
Shaft diameter [mm] 42.00 42.00
Total contact ratio 1.69 1.60

Analysis condition of design parameter

Condition
Gear module 1.59(SPUR #1), 2.39(SPUR #2)
Load torque [Nm] 50, 100, 150
Compensation rate [%] 0, 5, 10, 15
Rotation speed [RPM] 10 (1/6 rev per 1s)
Friction coefficient 0.1

Transmission error value of Spur gear due to design parameter variation

Compensation
rate/
Load torque
Spur #1 (m = 1.59) Spur #2 (m = 2.39)
Max
[μm]
Min
[μm]
PTP
[μm]
Max
[μm]
Min
[μm]
PTP
[μm]
0% 50 Nm 1.01 -0.99 2.00 1.77 -1.16 2.93
100 Nm 2.39 -2.08 4.47 3.16 -2.04 5.20
150 Nm 3.33 -3.37 6.70 3.82 -3.48 7.30
5% 50 Nm 1.62 -1.19 2.81 2.16 -0.87 3.03
100 Nm 2.98 -1.94 4.92 3.06 -2.21 5.27
150 Nm 3.96 -3.41 7.37 4.26 -3.23 7.49
10% 50 Nm 1.36 -1.87 3.23 1.99 -1.33 3.32
100 Nm 2.85 -2.45 5.30 3.18 -2.26 5.44
150 Nm 3.79 -3.73 7.52 4.34 -3.37 7.71
15% 50 Nm 1.67 -1.59 3.26 2.48 -0.79 3.27
100 Nm 2.75 -2.66 5.41 3.84 -1.76 5.60
150 Nm 4.28 -3.61 7.89 5.20 -2.79 7.99

Transmission error value of spur gear due to design parameter variation

Compensation
rate/
Load torque
Spur #1 Spur #2
Max
[μm]
Min
[μm]
PTP
[μm]
Max
[μm]
Min
[μm]
PTP
[μm]
0% 50 Nm 10.20 -8.69 18.89 12.51 -15.49 28.00
100 Nm 14.92 -16.26 31.18 16.53 -17.12 33.62
150 Nm 15.56 -18.21 33.76 21.51 -25.37 46.89
5% 50 Nm 9.89 -8.94 18.83 12.51 -15.49 28.00
100 Nm 17.78 -17.22 35.00 17.26 -26.17 43.43
150 Nm 20.51 -15.95 36.46 29.51 -27.79 57.30
10% 50 Nm 11.86 -11.04 22.90 13.75 -15.27 29.01
100 Nm 18.79 -19.42 38.22 21.47 -31.74 53.21
150 Nm 24.13 -17.75 41.87 34.01 -34.61 68.62
15% 50 Nm 12.32 -10.84 23.16 15.24 -21.13 36.37
100 Nm 22.89 -21.69 44.59 24.04 -35.48 59.52
150 Nm 26.23 -21.03 47.26 38.12 -37.56 75.67

Contact force due to load torque

Contact force Load torque
50 Nm 100 Nm 150 Nm
Spur #1 [N] 1,750 3,500 5,250
Spur #2 [N] 1,750 3,500 5,250
Table 1 Target gears design parameters
Table 2 Analysis condition of design parameter
Table 3 Transmission error value of Spur gear due to design parameter variation
Table 4 Transmission error value of spur gear due to design parameter variation
Table 5 Contact force due to load torque