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RISS 인기검색어
- 검색키워드
- 저자 : Maohao Xia (검색결과 2 건)
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Maohao Xia,Chaosheng Song,Chengcheng Liang,Siyuan Liu,Zhengminqing Li,Peitang Wei 대한기계학회 2021 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.35 No.12
A mathematical model of spiral bevel gear with the application of duplex spread blade method was established. A novel finite element model considering the configuration of shafts and bearings was developed. The influences of shafts, bearing position, and rubber cushion on the mesh characteristics of spiral bevel gear under different loads were investigated. Results show that the peak-to-peak value of transmission error and the ratio of contact area and high stress area all increase with the increase in loads. With the existence of rubber cushion, the contact pattern moves to the heel and root sides of the wheel flank, and the peakto-peak value of transmission error and root edge contact area increase. With the front bearing moving from the original position to the positive position, the peak-to-peak value of transmission error increases. With the movement of rear bearing position from negative to positive, the contact pattern moves to the heel and root sides of the wheel flank. The peak-to-peak value of transmission error increases, and the root edge contact area expands.
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Influences of machine-tool setting errors on mesh behavior for small-module spiral bevel gear
Chaosheng Song,Maohao Xia,Siyuan Liu,Chengcheng Liang 대한기계학회 2022 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.36 No.9
Due to the complex manufacturing process and numerous machine-tool settings, errors easily arise between the actual parameters and theoretical parameters of spiral bevel gear, which contributes to the deviation of geometrical morphology of gear flank. This type of gear pair is very sensitive to tooth flank deviations, and the deviations can affect the mesh behavior of the gear pair and then the performance of the entire device. To investigate the influence of different machine-tool setting errors on the mesh behavior of small-module spiral bevel gear, a mathematical model of this type of gear pair has been established based on the principle of duplex spread blade method, and the finite element analysis model has been developed under the rated condition. The horizontals and radial distances of pinion and wheel as well as the velocity ratio were selected to be investigated. The three machine-tool setting all makes the contact pattern move within the tooth flank. The minimum value of transmission error (TE) appears at the initial horizontal and radial distance. Negative values of the horizontal and radial distance and positive value of velocity ratio both can increase the root bending stress. The errors of machine-tool setting will increase the tooth contact stress. The main influential errors on mesh behavior of small-module spiral bevel gear are in proper order, horizontal, radial distance and velocity ratio. It is convenient and efficient to correct the tooth flanks in this order only by contrasting the contact pattern with the design after the rolling test.
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