Multiscale computation of fretting wear at the blade/disk interface

Gallego, Ludovic; Fulleringer, Benjamin; Deyber, S.; Nélias, Daniel

doi:10.1016/j.triboint.2009.10.011

Cited by 59 publications

(28 citation statements)

References 20 publications

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“…In such cases computing-time becomes one of the main constraints, forcing researchers to develop simplified models of both the dynamic behaviour of system components and contact stresses. These approaches have become efficient tools for solving well-defined problems more than general tools for understanding contact problems [1,49], because the phenomena and the scales of the mechanism and the contact are completely uncoupled.…”

Section: Semi-analytical Modelsmentioning

confidence: 99%

“…SA models have been used for understanding wear phenomena like fretting [1,50], in simplified elasto-plastic and wear models [49]. Other researchers have developed semi-analytical methods for modelling ball bearing behaviour [2,51,3], by simplifying the interaction between the bearing elements with visco-elastic contact laws.…”

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confidence: 99%

“…The literature on semi-analytical models is extremely rich and is growing rapidly every year, with specific branches that each deal with particular issues, thus it is not possible to give a complete overview of existing works and those readers interested should refer to more detailed reviews that deal with specific applications. Nevertheless, it is worth mentioning the works of Nélias [52,1,49] concerning dry contact problems and the works of Wensing [7,3] dealing with lubrificated contact problems.…”

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confidence: 99%

“…An interesting improvement and analysis of SA models can be found in the works of Gallego et al [49]. The authors propose an alternative method to the FE method to perform wear computations on dovetail joints.…”

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confidence: 99%

“…The authors propose an alternative method to the FE method to perform wear computations on dovetail joints. Although an FE model is used to solve the structural problem, the SA model focuses [49] on each contact area and its speed allow computing cyclic wear easily. Figure 1 shows the wear depth profiles after one fretting cycle with unworn surfaces (i.e.…”

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confidence: 99%

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Numerical tribology of a dry contact

Renouf

Massi

Fillot

et al. 2011

Tribology International

104

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Tribologists are confronted on a daily basis by the need to understand the causes and consequences of friction on the behaviour of bodies in contact. Understanding contact behaviour is not only a scientific curiosity but the key to solving numerous industrial issues. Numerical tools have been developed to overcome the problems encountered in experiments due to limitations in the local dynamic analysis of multi-scale systems (mechanisms, bodies in contact, interfaces). More than an exhibition of numerical results, the present paper proposes reviewing the literature on the numerical tribology of dry contacts by analysing the different scales involved. © 2011 Elsevier Ltd. All rights reserved

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Section: Semi-analytical Modelsmentioning

confidence: 99%

mentioning

confidence: 99%

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confidence: 99%

mentioning

confidence: 99%

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confidence: 99%

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Numerical tribology of a dry contact

Renouf

Massi

Fillot

et al. 2011

Tribology International

104

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Effects of the Geometry of Friction Interfaces on the Nonlinear Dynamics of Jointed Structure

Yuan

Salles

Schwingshackl

2021

Nonlinear Structures &Amp; Systems, Volume 1

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Friction interfaces are commonly used in large-scale engineering systems for mechanical joints. They are known to significantly shift the resonance frequencies of the assembled structures due to softening effects and to reduce the vibration amplitude due to frictional energy dissipation between substructural components. It is also widely recognized that the geometrical characteristics of interface geometry have a significant impact on the nonlinear dynamical response of assembled systems. However, the full FE modeling approaches including these geometrical characteristics are extremely expensive. In this work, the influence of geometry of friction interfaces is investigated by using a multi-scale approach. It consists in integrating a semi-analytical contact solver into a high-fidelity nonlinear vibration solver. A highly efficient semi-analytical solver based on the boundary element method is used to obtain the pressure and gap distribution from the contact interface with different geometrical characteristics. The static pressure and gap distribution are then used as input for a nonlinear vibration solver to evaluate nonlinear vibrations of the whole assembled structure. The effectiveness of the methodology is shown on a realistic "Dogbone" test rig, which was designed to assess the effects of blade root geometries in a fan blade disk system. The friction joints with different interface profiles are then investigated. The obtained results show that the effects of the surface geometrical characteristics can have a significant impact on the damping and resonant frequency behavior of the whole assembly.

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Finite Wear and Soft Elasto-Hydrodynamic Lubrication: Beyond the Classical Frictional Contact of Soft Solids

Stupkiewicz

2018

Contact Modeling for Solids and Particles

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Multiscale computation of fretting wear at the blade/disk interface

Cited by 59 publications

References 20 publications

Numerical tribology of a dry contact

Numerical tribology of a dry contact

Effects of the Geometry of Friction Interfaces on the Nonlinear Dynamics of Jointed Structure

Finite Wear and Soft Elasto-Hydrodynamic Lubrication: Beyond the Classical Frictional Contact of Soft Solids

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