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Time-varying mesh stiffness calculation of cracked spur gears
Engineering Failure Analysis, 2014Abstract Considering the misalignment of gear root circle and base circle and accurate transition curve, an improved mesh stiffness model for a healthy gear pair is proposed and validated by the finite element method (FEM). Based on the improved method, three mesh stiffness calculation methods (method 1: straight lines for crack path and limiting ...
Hui Ma +3 more
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Improved time-varying mesh stiffness model of cracked spur gears
Engineering Failure Analysis, 2015Abstract Based on our previous work (Ma et al., 2014, Engineering Failure Analysis , 44, 179–194), this paper presents an improved analytical model (IAM) for the time-varying mesh stiffness (TVMS) calculation of cracked spur gears. In the improved analytical model, the calculation error of TVMS under double-tooth engagement due to repeatedly ...
Hui Ma +4 more
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Parametric vibration of split gears induced by time-varying mesh stiffness
Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 2014Time-varying mesh stiffness is a significant excitation source within gear systems. Split gear (or laminated gear, phase gear) is an interesting design using equally phased gear-slices, which can remarkably reduce the mesh stiffness fluctuation like helical gears but completely avoid the axial force. This work examines a split gear pair to address the
Dongsheng Zhang, Shiyu Wang
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Calculation of Time-Varying Mesh Stiffness Affected by Load Based on FEM
Volume 10: 2017 ASME International Power Transmission and Gearing Conference, 2017Time-varying mesh stiffness (TVMS) is a key component of gear transmission system for gear dynamic response. When the machine starts working, stop working or goes into an unstable working condition, the load will be varying. In order to investigate the impact of different loads on TVMS, a numerical method based on FEM is proposed in this paper to study
Qian Cheng +5 more
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Mathematics and Mechanics of Solids, 2022
As a critical element of time-varying mesh stiffness (TVMS), contact stiffness of a gear drive has been defined based on simplified Hertzian contact stiffness or semi-empirical nonlinear Hertzian contact stiffness in previous works. This study proposes a general contact stiffness model for elastic bodies through piecewise linear interpolation of ...
Hongbing Wang +3 more
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As a critical element of time-varying mesh stiffness (TVMS), contact stiffness of a gear drive has been defined based on simplified Hertzian contact stiffness or semi-empirical nonlinear Hertzian contact stiffness in previous works. This study proposes a general contact stiffness model for elastic bodies through piecewise linear interpolation of ...
Hongbing Wang +3 more
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Parametric Instability in Planetary Gears With Frequency-Modulated Time-Varying Mesh Stiffness
Volume 8: 26th Conference on Mechanical Vibration and Noise, 2014A rotational model of planetary gears is developed which incorporates mesh stiffness variation and input speed fluctuations. Gear mesh stiffness is approximated by rectangle wave and different harmonic orders are considered. Because of speed fluctuations, the mesh stiffness is frequency modulated.
Xinghui Qiu, Qinkai Han, Fulei Chu
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An improved analytical method for calculating time-varying mesh stiffness of helical gears
Meccanica, 2017A “slice method” is adopted to calculate the time-varying mesh stiffness (TVMS) of helical gear pairs, where the tooth is divided into many individual sliced spur gears along the tooth width, and the TVMS of helical gear pairs is obtained by accumulating the TVMS of the sliced spur gear pairs.
Mengjiao Feng +4 more
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Evaluating the time-varying mesh stiffness of a planetary gear set using the potential energy method
Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 2013Time-varying mesh stiffness is a periodic function caused by the change in the number of contact tooth pairs and the contact positions of the gear teeth. It is one of the main sources of vibration of a gear transmission system. An efficient and effective way to evaluate the time-varying mesh stiffness is essential to comprehensively understand the ...
Xihui Liang, Ming J. Zuo, Yangming Guo
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Mechanical Systems and Signal Processing, 2018
Abstract An improved time-varying mesh stiffness (TVMS) model of a helical gear pair is proposed, in which the total mesh stiffness contains not only the common transverse tooth bending stiffness, transverse tooth shear stiffness, transverse tooth radial compressive stiffness, transverse gear foundation stiffness and Hertzian contact stiffness, but ...
Qibin Wang +4 more
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Abstract An improved time-varying mesh stiffness (TVMS) model of a helical gear pair is proposed, in which the total mesh stiffness contains not only the common transverse tooth bending stiffness, transverse tooth shear stiffness, transverse tooth radial compressive stiffness, transverse gear foundation stiffness and Hertzian contact stiffness, but ...
Qibin Wang +4 more
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Time-Varying Mesh Stiffness Calculation of Spiral Bevel Gear with Spalling Defect
Mechanism and Machine Theory, 2023Zhanwei Li +4 more
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