Reliability assessment and identification model of time-varying tooth flank loaded contact pressure for face-hobbed spiral bevel gears
Han Ding , Xu-Yang Wang , Hao-Tian Ji , Yan Yang , Jun Ding , Mou Li , Zhen-Yu Zhou , Xuan Tao
Advances in Manufacturing ›› : 1 -27.
Time-varying tooth flank loaded contact pressure provides significant access to load capability, contact strength, and fatigue life forecasting for face-hobbed spiral bevel gears. Considering the reliability and time-varying meshing characteristics, an innovative assessment and identification model is developed using the discrete convolution and fast Fourier transformation (DC-FFT)-based conjugate gradient method (CGM). The reliability assessment mainly includes the edge impact, time-varying meshing characteristics, and the maximum loaded contact pressure, in addition to conventional assessment items. Firstly, an advanced face-hobbed cutting process involving a continuous indexing method is simulated for tooth flank modeling. Subsequently, contact initialization, time-varying edge contact solution, and numerical loaded tooth contact analysis (NLTCA) approximation and operation are developed for the loaded contact pressure reliability analysis and assessment. In particular, the time-varying edge impact provides an accurate parametric computation for reliability and assessment. Moreover, a DC-FFT-based CGM is used to establish time-varying loaded flank identification considering reliability assessment. Finally, a spiral bevel gear set from a helicopter transmission system is used to verify the impact of the proposed model on the loaded flank pressure distribution.
Loaded contact pressure / Face-hobbed spiral bevel gears / Discrete convolution and fast Fourier transform (DC-FFT) / Conjugate gradient method (CGM) / Edge impact
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Shanghai University and Periodicals Agency of Shanghai University and Springer-Verlag GmbH Germany, part of Springer Nature
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