Results 11 to 20 of about 9,149 (165)
Machines, 2022 Taking the effect of actual surface topography under elastohydrodynamic lubrication (EHL) conditions on the contact state of gear pairs into consideration, a combination model with the analytical sliced method and two-dimensional (2D) EHL model is ...
Zhifang Zhao +5 more
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Experimental study of the characteristics of a novel mesh suture [PDF]
British Journal of Surgery, 2015 Abstract Background The failure of sutures to maintain tissue in apposition is well characterized in hernia repairs. A mesh suture designed to facilitate tissue integration into and around the filaments may improve tissue hold and decrease suture pull-through.
Dumanian, G. A. +2 more
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Dynamic Modeling and Analysis of Nonlinear Compound Planetary System
Machines, 2022 In the vehicle composite planetary gear transmission system, nonlinear excitations such as time-varying meshing stiffness, backlash and comprehensive error would lead to large vibration and noise, uneven load distribution, unstable operation and other ...
Tingqiong Cui +3 more
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Adaptive mesh refinement for characteristic grids [PDF]
General Relativity and Gravitation, 2010 I consider techniques for Berger-Oliger adaptive mesh refinement (AMR) when numerically solving partial differential equations with wave-like solutions, using characteristic (double-null) grids. Such AMR algorithms are naturally recursive, and the best-known past Berger-Oliger characteristic AMR algorithm, that of Pretorius & Lehner (J. Comp. Phys.
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Fixed mesh refinement in the characteristic formulation of general relativity [PDF]
General Relativity and Gravitation, 2017 We implement a spatially fixed mesh refinement under spherical symmetry for the characteristic formulation of General Relativity. The Courant-Friedrich-Levy (CFL) condition lets us deploy an adaptive resolution in (retarded-like) time, even for the nonlinear regime.
Barreto, W. +2 more
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The analysis of contact ratio of involute internal beveloid gears with small tooth difference
Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2022 This paper proposes a calculation method for the contact ratio of internal beveloid gear pairs with small tooth number difference (IBGPSTND) based on the finite element method (FEM).
Guoshuai YAN +4 more
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Journal of Mechanical Engineering, 2022 A mathematical model of profile shifted quasi-involute arc-tooth-trace gears is obtained. The model includes functional relationships between the geometric-kinematic meshing characteristics and parameters of the generating surface as well as conditions ...
Tkach Pavlo +5 more
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Jixie chuandong, 2023 Aiming at the difficulty of analyzing the meshing contact characteristics of gear transmission system under the big data formed by multiple working conditions and uncertain parameters, a meshing contact characteristics analysis method of gear ...
Li Shengjia +4 more
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Shock and Vibration, 2020 This paper presents a new transmission mechanism with multistage face gears as the core components for realizing variable speeds with differential meshing.
Xingbin Chen +5 more
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IEEE Access, 2020 With the construction of periodic functions relative to the meshing frequency, rotating frequency, and the faulty frequency, etc., the phenomenological model provides a simple and effective way of representing the vibration signal of the planetary ...
Yingchao Luo, Lingli Cui, Jianfeng Ma
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