Journal ArticleDOI
Influence of finite element model, load-sharing and load distribution on crack propagation path in spur gear drive
Rama Thirumurugan,N Gnanasekar +1 more
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TLDR
In this article, the authors explored the finite element (FE) model and the load distribution on the SIF for the given crack size, and two different 3D models were developed with the initial crack with the size of 1mm at the location of maximum principal stress in the fillet region.About:
This article is published in Engineering Failure Analysis.The article was published on 2020-03-01. It has received 19 citations till now. The article focuses on the topics: Fracture mechanics & Stress intensity factor.read more
Citations
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Mesh stiffness models for cylindrical gears: A detailed review
TL;DR: Different types of models are used to establish the mesh stiffness of parallel axis cylindrical gears, namely, analytical, finite element, hybrid and approximated analytical models, providing a broad range of information in great detail.
Journal ArticleDOI
Digital Twin-Driven Remaining Useful Life Prediction for Gear Performance Degradation: A Review
Bin He,Long Liu,Dong Zhang +2 more
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Three-dimensional modeling of non-planar fatigue crack growth in spur gear tooth using tetrahedral finite elements
TL;DR: In this article, a numerical methodology for prediction of crack growth path and life of structures containing cracks and its application to three different case studies on spur gear tooth is presented, where three-dimensional non-planar fatigue crack propagation analyses are carried out using FRAC3D, which is part of Fracture and Crack Propagation Analysis System (FCPAS), employing fully unstructured tetrahedral elements along the crack front and in the whole model.
Journal ArticleDOI
16MnCr5 gear shaft fracture caused by inclusions and heat treatment process
Sai Cai,Jinquan Sun,Jinquan Sun,Qingkun He,Tong Shi,Dongrui Wang,Jinwei Si,Jie Yang,Fujie Li,Kun Xie,Min Li +10 more
TL;DR: In this paper, the microstructure, slag inclusion, phase composition and microhardness profiles of failure gear shaft were characterized by the optical microscope, scanning electron microscope and micro-hardness tester, respectively.
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Improved analytical method for gear body-induced deflections with tooth root crack considering structural coupling effect
TL;DR: In this article , an improved method of sparsified gear mesh stiffness is proposed based on the theory of elastic mechanics for circular ring, which is capable of calculating the mesh stiffness with tooth root crack accurately.
References
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Journal ArticleDOI
Dynamic simulation of spur gear with tooth root crack propagating along tooth width and crack depth
Zaigang Chen,Yimin Shao +1 more
TL;DR: In this paper, an analytical model is proposed to investigate the effect of gear tooth crack on the gear mesh stiffness, where both the tooth crack propagations along tooth width and crack depth are incorporated in this model to simulate gear tooth root crack, especially when it is at very early stage.
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Mesh stiffness calculation of a spur gear pair with tooth profile modification and tooth root crack
Zaigang Chen,Yimin Shao +1 more
TL;DR: In this paper, a general analytical mesh stiffness model is proposed to include the effect of the gear tooth errors, which is suitable for not only the gear pairs with low contact ratio (LCR), but also the gear pair with high contact ratio(HCR).
Journal ArticleDOI
Review on dynamics of cracked gear systems
TL;DR: In this paper, a review of the literature on the dynamics of cracked gear rotor systems is presented, which mainly focuses on three topics: crack propagation prediction, time-varying mesh stiffness (TVMS) calculation and vibration response calculation.
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Fault features analysis of cracked gear considering the effects of the extended tooth contact
TL;DR: Considering the effects of the extended tooth contact and tooth root crack on the time-varying mesh stiffness (TVMS), a finite element (FE) model of a spur gear pair in mesh is established by ANSYS software as mentioned in this paper.
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Calculation of mesh stiffness of spur gears considering complex foundation types and crack propagation paths
TL;DR: Based on the finite element theory and the loaded tooth contact analysis, an analytical-finite element model considering the complex gear foundation types and the crack propagation paths is proposed to calculate the mesh stiffness of spur gears as discussed by the authors.