TY - JOUR
T1 - 循 环 式 行 星 滚 柱 丝 杠 副 的 疲 劳 分 析 与 寿 命 预 测
AU - Qiao, Guan
AU - Liao, Rong
AU - Zhang, Xiaomin
AU - Jiang, Guangjun
AU - Ma, Shangjun
N1 - Publisher Copyright:
© 2023 South China University of Technology. All rights reserved.
PY - 2023/11
Y1 - 2023/11
N2 - The recirculating planetary roller screw mechanism, as a derivative of planetary roller screw mechanism, is a transmission mechanism that is engaged by the screw or nut thread and multiple circular groove rollers. To study the random vibration fatigue characteristics of the recirculating planetary roller screw mechanism, this paper established a finite element model of the mechanism based on fatigue failure theory, and conducted the dynamic analysis and fatigue life prediction. Firstly, according to the material stress-number of cycles (S-N) curve and Miner’s linear damage accumulation theory, fatigue analysis was carried out on the recirculating planetary roller screw mechanism using the related software, and fatigue results in the contact area and damage values at each node were obtained. Then, based on the developed four fatigue life prediction models, the obtained analytical solutions were compared with the simulated damage values. The results show that the resonance induced by the recirculating planetary roller screw mechanism at 3 960 Hz causes the most damage to the mechanism. When the excitation frequency is the same, the area of maximum contact stress and minimum fatigue life is the same. Besides, the corresponding frequencies of the peak stress in the harmonic response analysis and that of the peak power spectral density in the fatigue analysis of the recirculating planetary roller screw mechanism are the same. This study can provide a theoretical guidance for the design and fatigue optimization of the recirculating planetary roller screw mechanism.
AB - The recirculating planetary roller screw mechanism, as a derivative of planetary roller screw mechanism, is a transmission mechanism that is engaged by the screw or nut thread and multiple circular groove rollers. To study the random vibration fatigue characteristics of the recirculating planetary roller screw mechanism, this paper established a finite element model of the mechanism based on fatigue failure theory, and conducted the dynamic analysis and fatigue life prediction. Firstly, according to the material stress-number of cycles (S-N) curve and Miner’s linear damage accumulation theory, fatigue analysis was carried out on the recirculating planetary roller screw mechanism using the related software, and fatigue results in the contact area and damage values at each node were obtained. Then, based on the developed four fatigue life prediction models, the obtained analytical solutions were compared with the simulated damage values. The results show that the resonance induced by the recirculating planetary roller screw mechanism at 3 960 Hz causes the most damage to the mechanism. When the excitation frequency is the same, the area of maximum contact stress and minimum fatigue life is the same. Besides, the corresponding frequencies of the peak stress in the harmonic response analysis and that of the peak power spectral density in the fatigue analysis of the recirculating planetary roller screw mechanism are the same. This study can provide a theoretical guidance for the design and fatigue optimization of the recirculating planetary roller screw mechanism.
KW - fatigue analysis
KW - harmonic response analysis
KW - life prediction
KW - modal analysis
KW - recirculating planetary roller screw mechanism
UR - http://www.scopus.com/inward/record.url?scp=85180014045&partnerID=8YFLogxK
U2 - 10.12141/j.issn.1000-565X.230146
DO - 10.12141/j.issn.1000-565X.230146
M3 - 文章
AN - SCOPUS:85180014045
SN - 1000-565X
VL - 51
SP - 131
EP - 139
JO - Huanan Ligong Daxue Xuebao/Journal of South China University of Technology (Natural Science)
JF - Huanan Ligong Daxue Xuebao/Journal of South China University of Technology (Natural Science)
IS - 11
ER -