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CSME 2021/12
Volume 42 No.6
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631-642
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An Improved Compliance Model on Meshing Stiffness of Spur Gear Pair by Generating Method of Rack Cutter with Various Gear Parameters
Chuen-Ren Wang a, Ting-Nung Shiau , Kuo-Hsuan Huang b, De-Shin Liu and Wei-Chun Hsu c
aAdvanced Institute of Manufacturing with High-tech Innovations and Department of Mechanical Engineering, National Chung Cheng University. 621 Chia-Yi, Taiwan, R.O.C.
bL. K. Machinery Corp. 407, Taichung.
cDepartment of Mechanical Engineering, WuFeng University. 621 Chia-Yi, Taiwan, R.O.C.
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Abstract:
This study proposes an improved compliance model for the mesh stiffness of a spur gear pair with the various gear parameters. The first step of the proposed model is to use the generating method of rack cutter to obtain an involute tooth profile. The second step is to calculate the mesh stiffness of a gear pair, using gear body deflection of involute tooth with the effects of circular elastic rings under dedendum circle and non-constant Hertzian contact theory. Numerical results show that the magnitude of gear mesh stiffness for the proposed model is of about 20% differences compared to Weber’s model and Sianaot's model. It implies that the proposed model can avoid the overestimate problem of gear mesh stiffness. Furthermore, the variations of gear mesh stiffness for the various gear tooth types will affect the system more than the various pressure angles under the non-constant Hertzian contact effect.
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Keywords: Gear body deflection, Non-constant Hertzian contact, Rack cutter, Generating method.
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©
2021
CSME , ISSN 0257-9731
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