Results 11 to 20 of about 4,527 (263)
Analysis of Time–Varying Mesh Stiffness for the Planetary Gear System with Analytical and Finite Element Methods [PDF]
International Journal of Advanced Design and Manufacturing Technology, 2022 In dynamic model of planetary gears, one of the key design parameters and one of the main sources of vibration is time–varying mesh stiffness of meshing gears.
Ali Shahabi, Amir Hosein Kazemian
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On the evaluation of the meshing stiffness of external spur gears [PDF]
MATEC Web of Conferences, 2020 A comparison among different approaches of the meshing stiffness of spur gears has been carried out. The influence of each one on the load sharing, and subsequently on the determinant tooth-root and contact stresses, has also been studied. Equations for the evolution of the meshing stiffness along the path of contact according to all these formulations
Pleguezuelos Miguel +2 more
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Jixie chuandong, 2021 Meshing stiffness calculation of fatigue pitting helical gear is an important basis of gear failure dynamics analysis. The finite element models of normal gears and fatigue pitting gears are established by using the finite element method to calculate the
Jinkai Li +4 more
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Research on Meshing Stiffness and Vibration Response of Pitting Fault Gears with Different Degrees
International Journal of Rotating Machinery, 2020 In order to study the influence of pitting on meshing stiffness, the normal distribution function is used to simulate the pitting location of pitting gear, and the potential energy method is used to analyze the influence of pitting on meshing stiffness ...
Jie Liu, Chengye Wang, Wenchao Wu
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A Lightweight Model for Gear Mesh Dynamics Incorporating Variable Mesh Stiffness [PDF]
MATEC Web of Conferences, 2015 Variable stiffness of the gear tooth mesh for a pair of spur gears is computed using an accurate lightweight mathematical formulation. This is used to simulate gear dynamic behavior. Gear eigenfrequencies are calculated for the SDOF system and correlated with gear physical properties and the effect of stiffness variation during a mesh cycle is studied.
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Advanced Engineering Materials, EarlyView.A numerical–experimental framework is developed for characterizing multi‐matrix fiber‐reinforced polymers (MM‐FRPs) combining epoxy and polyurethane matrices. Harmonic bending tests are integrated with finite element model updating (FEMU) to simultaneously identify elastic and viscoelastic material parameters.
Rodrigo M. Dartora +4 more
wiley +1 more source
Phase Field Failure Modeling: Brittle‐Ductile Dual‐Phase Microstructures under Compressive Loading
Advanced Engineering Materials, EarlyView.The approach by Amor and the approach by Miehe and Zhang for asymmetric damage behavior in the phase field method for fracture are compared regarding their fitness for microcrack‐based failure modeling. The comparison is performed for the case of a dual‐phase microstructure with a brittle and a ductile constituent.
Jakob Huber, Jan Torgersen, Ewald Werner
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Meshing Stiffness Calculation of Spur Bevel Gears Considering the Tooth Pair Coupling
Jixie chuandong, 2023 In order to solve the problem of calculation efficiency and accuracy of time-varying meshing stiffness of spur bevel gears, a slice calculation method of meshing stiffness of spur bevel gears considering the coupling effect of tooth pairs is proposed ...
Li Feifei, Dong Huimin, Zhang Chu
doaj
Vaginal degeneration following implantation of synthetic mesh with increased stiffness [PDF]
BJOG: An International Journal of Obstetrics & Gynaecology, 2012 ObjectiveTo compare the impact of the prototype prolapse mesh Gynemesh PS with that of two new‐generation lower stiffness meshes, UltraPro and SmartMesh, on vaginal morphology and structural composition.DesignA mechanistic study employing a nonhuman primate model.SettingMagee‐Womens Research Institute at the University of Pittsburgh.PopulationParous ...
R, Liang +7 more
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Applied Sciences, 2023 The internal gear is part of the planetary and epicyclic gear pairs in the transmission system of the helicopter. Gear tooth wear is one of the most usual gear failures. This paper establishes an analytical model to evaluate the influence of tooth wear on the mesh relationship.
Wang, Yanan +4 more
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