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On the use of the theory of critical distances with mesh control for fretting fatigue lifetime assessment
2019
Tribology International
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This work analyses the viability of the theory of critical distances (TCD) using mesh control for fretting fatigue lifetime assessment. ...
The outcome of the present study suggests that the TCD mesh control method can be extended to fretting fatigue problems by the reasonable assumption of setting the right element size proportional to critical ...
Correlation between predicted and experimental lives for the TCD point method and the TCD with mesh control method for the four different data sets: (a) Al2024-T351 from Szolwinski and Farris [30] ;(b ...
doi:10.1016/j.triboint.2019.105985
fatcat:tqzc5ctiirbwthdkvmspk7wu7u
Gear noise prediction in automotive transmissions
[chapter]
2014
International Gear Conference 2014: 26th–28th August 2014, Lyon
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Continuous research led to the development of an elaborate method for gear noise evaluation. ...
Due to increasing requirements regarding the vibrational behavior of automotive transmissions, it is necessary to develop reliable methods for noise evaluation and design optimization. ...
For the assessment of the excitation behavior of gears based on the stiffness calculations, several methods are used to determine the excitation characteristics. ...
doi:10.1533/9781782421955.457
fatcat:rxmycterozda7hsrtthi5eggby
Fracture Assessment of Quasi-brittle Rock Simulated by Modified Discrete Element Method
2020
Rock Mechanics and Rock Engineering
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The analysis was repeated for three other mesh sizes and the results are less mesh size dependent. ...
Using the first methodology, MDEM can calculate stress intensity factors, K I and K II using the internal contact forces of particles. ...
The authors acknowledge the following partners for their contributions: Gassco, Shell, Statoil, TOTAL, ENGIE, and the Research Council of Norway (193816/S60). ...
doi:10.1007/s00603-020-02139-7
fatcat:7qwtr7sbsffqfhpi3xxhnigyiy
Generation of Independent Contact Regions on objects reconstructed from noisy real-world range data
2012
2012 IEEE International Conference on Robotics and Automation
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We propose a method for increasing the robustness of grasp synthesis on uncertain geometric models. ...
The paradigm of Independent Contact Regions (ICRs) has been proposed as a way to increase the tolerance to grasp positioning errors. ...
EVALUATION METHODOLOGY For convenience, henceforth meshes reconstructed from unfiltered point clouds are referred to as raw meshes, meshes reconstructed from filtered point clouds are denoted as filtered ...
doi:10.1109/icra.2012.6225046
dblp:conf/icra/CharustaKSDI12
fatcat:nditnrj7evepbpsvbkac2tjbcy
Crack path simulation for cylindrical contact under fretting conditions
2015
Frattura ed Integrità Strutturale
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In this work different strategies to estimate crack path for cylindrical contacts under fretting conditions are carried out. ...
The results show that, under fretting conditions, models based on the critical plane method are not effective to estimate the crack initiation orientation, while models based on a so called "critical direction ...
In a similar way one could assume the point or the area method (for 2D problems) [6] , but these will not be assessed here due to space constraints. ...
doi:10.3221/igf-esis.35.46
fatcat:uo34mlzotfgsdin2tnukxfd35m
Development of a Semi‐Implicit Contact Methodology for Finite Volume Stress Solvers
2021
International Journal for Numerical Methods in Engineering
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The contact procedure is designed around an arbitrary mesh mapping algorithm to allow for non-conformal meshes at the contact interface between the two bodies. ...
In this article, we present a novel semi-implicit methodology for the solution of static force-loading contact problems with cell-centered finite volume codes. ...
The gain in performance achieved with the implicit contact methodology is difficult to assess. ...
doi:10.1002/nme.6857
fatcat:4c5q77uaqnfi7ja2w3x6y776hy
Efetividade das intervenções de telemedicina no impacto da artrite reumatóide: protocolo de uma revisão umbrella
Effectiveness of telemedicine interventions in the impact of rheumatoid arthritis: an umbrella review protocol
2020
Revista de Enfermagem Referência
Effectiveness of telemedicine interventions in the impact of rheumatoid arthritis: an umbrella review protocol
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Systematic Review Method This protocol was based on the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) for systematic review protocols (PRISMA-P) as a reporting guideline ...
Assessment of the methodological quality of the studies Two reviewers will assess the studies and their quality using the JBI Critical Appraisal Checklist for Systematic Reviews and Research Synthesis ...
Methodology: Rocha, A. I., Santos, E. J., Mota, M. A., Cunha, M., Henriques, M. A. Writing -original draft preparation: Rocha, A. I., Santos, E. J., Mota, M. A. Writing -review and editing: Rocha, A. ...
doi:10.12707/riv19097
fatcat:2ub5f2z7ora5dnp4uluydmdsim
3D Adaptive Multi Fracture Analysis of Composites
2003
Materials Science Forum
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A new approach based on the concepts of the discrete element method coupled with adaptive remeshing techniques is presented for impact resistance of composites. ...
Anisotropic Hoffman based models are used for predicting the imminence of a material crack or interlaminar delamination. ...
Acknowledgements The authors would like to acknowledge the support received from the "University of Tehran, Vice Chancellor for Research" under the grant number 614/2/627. ...
doi:10.4028/www.scientific.net/msf.440-441.145
fatcat:fl66kqfmpfb3vghappxsc63fzm
Model-based detection of local defects in gears
2017
Archive of applied mechanics (1991)
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The paper is presenting a methodology for developing model-based method of gear fault diagnostics. ...
The model was initially used to analyze the teeth contact in the presence of pitch errors and later to verify the sensitiveness of proposed diagnostic methods and their availability to detect the fatigue ...
meshing force resulting from the deflections of mating tooth profiles, the knowledge of the meshing stiffness for the current mating point is required. ...
doi:10.1007/s00419-017-1321-2
fatcat:752tom7pk5cihagfxeu7bjmm5m
Adaptive meshing technique applied to an orthopaedic finite element contact problem
2004
The Iowa Orthopaedic Journal
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Recently a growing interest has developed, in the orthopaedic biomechanics community, in how numerical models can be constructed for the optimal solution of problems in contact mechanics. ...
Finite element methods have been applied extensively and with much success in the analysis of orthopaedic implants. ...
SUMMARY An adaptive FE procedure has been developed, using an error estimator based on the oscillatory behavior of a near-point contact analysis. ...
pmid:15296201
pmcid:PMC1888414
fatcat:7uexgm6fjjeuhmtuoisdguomym
A complete methodology for the mechanical diagnosis of statue provided by innovative uses of 3D model. Application to the imperial marble statue of Alba-la-Romaine (France)
2017
Journal of Cultural Heritage
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The number of contact points directly depends on the number of mesh elements. ...
The meshes generated from the point clouds have been used to virtually assemble dismounted historic buildings [8] or statues [9, 10] and to simulate their mechanical behaviour by Finite Element Method ...
doi:10.1016/j.culher.2017.05.002
fatcat:nw7fkvuvrfgtnbwzeufoeolcby
A new methodology to evaluate the performance of physics simulation engines in haptic virtual assembly
2014
Assembly Automation
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Two objects with the same shape can have different contact points defined by the object's triangular mesh, position and orientation. ...
, where 1 is the restitution coefficient; 2 the impulse forces at the contact point can only push but not pull objects; and 3 the contact forces occur only at contact points. ...
Corresponding author Germanico Gonzalez-Badillo can be contacted at: germanico.gonzalez@uaslp.mx ...
doi:10.1108/aa-05-2013-046
fatcat:4tr7blouhjhfvmzzrqr5zom44i
Long-Term Slope Stability of Abandoned Mine Lake—Numerical Modelling and Risk Assessment
2021
Materials Proceedings
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To develop a reliability methodology for assessing the long-term stability of flooded open pit mines, a large-scale numerical model of the lake was carried out and was applied on Lake Most, which is one ...
The large-scale numerical model was built, based on the site observations, large scale LiDAR data and geotechnical data. ...
The final data point cloud was used to create the digital terrain model to build the 3D volumetric mesh. ...
doi:10.3390/materproc2021005088
fatcat:zg4pge2rhvdzhltopfvj4pfmbq
A flank modification method for spiral bevel gears based on mismatch topography adjustment
2018
Journal of Advanced Mechanical Design, Systems, and Manufacturing
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Shih and Fong (2007) studied the flank modification methodology based on ease-off topography for face-hobbing hypoid gears, on this basis Shih (2010) proposed a novel ease-off topography modification method ...
al., (2015) studied the active tooth surface design method for double-cut cycloid bevel gears, which can modify the pinion tooth surface by predetermining the meshing performance parameters based on the ...
would like to thank the financial aid and support from the National Natural Science Foundation of China (No.51705134, No.51705135, No.51475141, No. 51675161).We also thank anonymous reviewers and editors for ...
doi:10.1299/jamdsm.2018jamdsm0057
fatcat:nu7rzuxwizczdiqi4pjt2ktele
Penalty-based Numerical Representation of Rigid Body Interactions with Applications to Simulation of Robotic Grasping
[article]
2021
arXiv
pre-print
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Such situations lying beyond the range of admissible configurations for constraint-based methods, their occurrence typically results in non-meaningful simulation outcomes. ...
However, application of constraint-based methods in a numerical setting may lead to problematic configurations in which, for instance, volumes occupied by distinct bodies may overlap. ...
A simple, computationally inexpensive method is provided to assess the overlap between objects. ...
arXiv:2108.00348v1
fatcat:lqilsm4k2vbsxati3cs72wmem4
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