Results 51 to 60 of about 16,116 (280)

载荷与齿轮啮合刚度、重合度的关系研究

open access: yesJixie chuandong, 2014
The calculation method of loaded gear mesh stiffness is proposed based on the finite element method(FEM).The time-varying mesh stiffness based on this method and ISO6336-1:2006standard is compared,the correctness and accuracy of the presented calculation
唐进元, 王志伟, 雷敦财
doaj  

Numerical Simulation of the Influence of Gear Modification on the Meshing Stiffness

open access: yesJixie chuandong, 2020
In order to explore the influence of gear modification on the meshing stiffness,two different methods are used to calculate the gear meshing stiffness.First,the gear is parametrically modeled by Pro/E secondary development,and the gear model is imported ...
Wang Zhiqin   +3 more
doaj  

An improved mesh stiffness calculation model of spur gear pair under mixed EHL friction with spalling effect [PDF]

open access: yes, 2020
Based on the “Potential energy method”, the improved mesh stiffness calculation model of spur gear pair with actual involute and transition curve is proposed.
Siyu Wang, Rupeng Zhu
core   +1 more source

Low Cycle Repetitive Loading of Ti‐6Al‐4V‐Epoxy Composite Lattice Structures for Enhanced Energy Dissipation and Damage Tolerance

open access: yesAdvanced Engineering Materials, EarlyView.
Composite Ti–6Al–4V–epoxy lattice structures are additively manufactured and epoxy infiltrated for cyclic loading. At low lattice volume fractions, hybridization produces synergistic gains in stiffness and energy dissipation. At higher volume fractions, synergy diminishes, although composites still exceed metallic lattices in specific energy ...
Joey Tallon   +3 more
wiley   +1 more source

Dynamic Analysis of Planetary Gear with Root Crack in Sun Gear Based on Improved Time-Varying Mesh Stiffness [PDF]

open access: yes, 2020
The time-varying mesh stiffness (TVMS) is the crucial parameter of the dynamic model of the gear system. Accurate calculation of TVMS is essential for effective fault diagnosis of the gear system.
Peng Luo   +3 more
core   +1 more source

From Shear to Sound: Mechanics–Acoustics Mapping of TPMS Lattices

open access: yesAdvanced Engineering Materials, EarlyView.
Triply periodic minimal surface (TPMS) lattices are mapped across mechanical and acoustic performance, revealing that descriptors validated in compression fail under shear. First‐time comparison with trusses included. A transition from porous to resonance‐driven absorption emerges at 25% density.
Lucía Doyle   +3 more
wiley   +1 more source

Theoretical and experimental studies on dynamics of double-helical gear system supported by journal bearings

open access: yesAdvances in Mechanical Engineering, 2016
The dynamic behaviour of a double-helical gear system supported by journal bearings is theoretically and experimentally investigated in this study. A bending–torsional–axial coupling model for dynamic analysis of double-helical gear system is developed ...
Minghu Yin, Guoding Chen, Hua Su
doaj   +1 more source

Nonlinear Multi-Frequency Dynamics of Wind Turbine Components with a Single-Mesh Helical Gear Train

open access: yesMathematical and Computational Applications, 2018
A complex nonlinear model for a single-mesh helical gear train is developed by including a time-varying mesh stiffness, axial vibrations, torsional vibrations, shaft and bearing damping, generator back EMF (Electromotive Force) and gear backlashes.
Nkongho Ayuketang Arreyndip   +2 more
doaj   +1 more source

Influence of Geometric Design on Mechanical Performance of Auxetic Metastructure

open access: yesAdvanced Engineering Materials, EarlyView.
Strategic geometric reinforcement transforms auxetic performance. This study evaluates 3D‐printed arrowhead metastructures, revealing that a modified design with local ring reinforcement suppresses premature failure to achieve superior energy absorption and structural efficiency.
Muhammad Gulzari   +3 more
wiley   +1 more source

Investigation of Parametric Instability of the Planetary Gear under Speed Fluctuations

open access: yesShock and Vibration, 2017
Planetary gear is widely used in engineering and usually has symmetrical structure. As the number of teeth in contact changes during rotation, the time-varying mesh stiffness parametrically excites the planetary gear and may cause severe vibrations and ...
Xinghui Qiu, Qinkai Han, Fulei Chu
doaj   +1 more source

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