Results 11 to 20 of about 2,188 (260)
Simulation of meshing characteristics of harmonic reducer and experimental verification
Advances in Mechanical Engineering, 2018 This article studies the causes of the time-varying stiffness of harmonic drive gear and the number of meshing teeth and the meshing length under different torques. Multi-pair tooth meshing characterizes the operating process of the harmonic gear reducer.
Jianfeng Ma +3 more
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Jixie chuandong, 2021 When a gear has a pitting fault，the vibration response characteristics caused by its time-varying meshing stiffness change is an important basis for the diagnosis of pitting faults，and an accurate gear geometry model is of great significance for the ...
Chaoyang Jiang, Yanxue Wang, Junjie Lai
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Study on the Spalling Fault Degradation Mechanism and Dynamic Model of Gear Tooth Surfaces
Jixie chuandong, 2023 Under the action of alternating load, the initial crack on the gear tooth surface would inevitably initiate and gradually evolve into spalling and other faults. It has a serious impact on the transmission system.
Peng Yi +3 more
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Shock and Vibration, 2021 The torsional dynamic model of double-helical gear pair considering time-varying meshing stiffness, constant backlash, dynamic backlash, static transmission error, and external dynamic excitation was established. The frequency response characteristics of
Hao Dong +3 more
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The influence of time-varying mesh stiffness on natural characteristics of planetary gear system
Journal of Physics: Conference Series, 2021 Abstract Modal property is the crucial factor that can influence the vibration characteristics of the planetary gear system. Previous studies used time invariant mesh stiffness (TIMS) to study the natural characteristics. However, with the rotation of the gear, the meshing stiffness will change periodically which will lead to changes of ...
Keming Zhang +3 more
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Study of the Influences of Transient Crack Propagation in a Pinion on Time-Varying Mesh Stiffness [PDF]
Shock and Vibration, 2016 Cracks in a cracked gear may further propagate by a tiny length in a very short time for several reasons, such as material fatigue and load fluctuations. In this paper, this dynamic process is defined as transient propagation of cracks. This research aims to calculate the time-varying mesh stiffness of gears when transient propagation of cracks arises,
Youmin Hu, Jikai Fan, Jin Yu
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Dynamic Analysis of Gear Systems with Dynamic Mesh Stiffness and Time- Varying Bearing Stiffness
Nonlinear DynamicsAbstract In this study, a novel analytical model for dynamic mesh stiffness of spur gears is developed using variable cross-section beam theory, explicitly accounting for driving speed effects. The dynamic mesh stiffness is determined by applying the modal superposition method to analytical model equations, and subsequently validated using both
Lili Zhang +8 more
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Jixie chuandong, 2021 Gear is widely applied in mechanical transmission systems. Gear meshing stiffness is a time varying parameter because of the periodical changing of the numbers of teeth involved in meshing process，the meshing vibration is generated during gear meshing ...
Maohui Wang +4 more
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Research on Meshing Characteristics of Trochoidal Roller Pinion Rack Transmission
Applied Sciences, 2022 As a precision transmission mechanism, the trochoidal roller pinion rack has been paid more and more attention in recent years, but its meshing characteristics have not been deeply explored.
Haiwei Wang, Lulu Li, Geng Liu
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Study on Dynamics of Wind Turbine Gearbox with Crack Fault under Random Wind Load
Jixie chuandong, 2022 Crack fault will affect the time-varying meshing stiffness of the gear，and cause the vibration response of gear transmission system. Taking the wind turbine gearbox as the research object，considering the misalignment of gear root circle and base circle ...
Jinwen Wang +4 more
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