Macroscopic fretting variables in a splined coupling under combined torque and axial load

Leen, Seán B.; Richardson, I J; McColl, I.R.; Williams, Edward J.; Hyde, T H

doi:10.1243/0309324011514647

Cited by 53 publications

(67 citation statements)

References 17 publications

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“…The mechanical properties of SCMV have been reported in [2]. For the purpose of the present study, only the elastic properties are considered.…”

Section: Materials and Specimensmentioning

confidence: 99%

“…Application of a coating which results in a low coefficient of friction (COF) in a contact has been identified as a way to ameliorate fretting fatigue problems [1]. Low friction coatings provide benefits by reducing the magnitude of the applied tangential loading in a displacement-controlled fretting contact configuration and hence reducing the peak stresses at crack nucleation sites [2]. The component life thus increases since the number of cycles needed to nucleate a crack increases.…”

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confidence: 99%

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Gross slip fretting wear performance of a layered thin W-DLC coating: Damage mechanisms and life modelling

Tobi

Shipway

Leen

2011

Wear

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“…The mechanical properties of SCMV have been reported in [2]. For the purpose of the present study, only the elastic properties are considered.…”

Section: Materials and Specimensmentioning

confidence: 99%

mentioning

confidence: 99%

Gross slip fretting wear performance of a layered thin W-DLC coating: Damage mechanisms and life modelling

Tobi

Shipway

Leen

2011

Wear

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“…The contact stress and sliding distance are calculated once again as Actually, the wear depth of one minor cycle can be neglected since the value is too small to modify the model. It is necessary to select ΔN as the increment of wear cycle [18]. Therefore, the wear depth of one wear cycle is as follows:…”

Section: International Journal Of Aerospace Engineeringmentioning

confidence: 99%

“…Guo et al investigated the gearcoupling contact and loads under considering the effects of the misalignment, torque, and friction [16]. Similarly, Leen et al have studied the frictional contact in spline couplings [17,18] and investigated the effect of axial profile modification on friction coefficient with considering the coupling which is under combined torque and axial loads [19]. Hu et al analyzed the influences of the contact length, friction coefficient, spline wall thickness on the contact stress, and slip distribution of aviation involute spline couplings using a finite element method [20].…”

Section: Introductionmentioning

confidence: 99%

Wear Characteristics of the Material Specimen and Method of Predicting Wear in Floating Spline Couplings of Aero-Engine

Xue

Wang

Yu³

et al. 2017

International Journal of Aerospace Engineering

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In order to reduce wear and design high-performance spline coupling, the friction coefficient, wear coefficient, and wear depth of 14 groups of material specimens were tested using multifunctional friction and wear tester. The effect of materials, loads, rotation speed, and surface treatment on friction coefficient, wear coefficient, and wear depth was investigated. A method using an Archard's equation based on the finite element method to calculate the wear depth of 14 groups of material specimens was proposed, and the results were consistent with the experimental results. Then, the wear of a floating involute spline coupling of aero-engine was predicted using this method. It can be concluded that carburizing and silvering can decrease the friction coefficient. The wear and wear coefficient decreased after carburizing. So, it is necessary to take 18CrNi4A with carburization and 32Cr3MoVA with nitridation as the material of the spline coupling in aero-engine to minimize wear. Furthermore, the method presented to predicate the wear of spline coupling in this work provided a good fundament for the fatigue prediction methodology of spline coupling.

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“…Meanwhile, similar Poisson's ratio, v of 0.3, is employed for both materials [13,27]. The plasticity data for Super CMV and Ti-6Al-4V material is obtained from the study presented by Leen et al [28]and Benedetti & Fontanari [29] as shown in Table 1. The plane strain, explicit linear quadrilateral elements were used at the contact region throughout the simulation as high reliability contact performance can be achieved, especially for frictional contact problems.…”

Section: Fe Modelling Approachmentioning

confidence: 99%

Prediction of residual stress using explicit finite element method

Siswanto¹,

Nagentrau²,

Tobi³

2015

J. Mech. Eng. Sci.

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This paper presents the residual stress behaviour under various values of friction coefficients and scratching displacement amplitudes. The investigation is based on numerical solution using explicit finite element method in quasi-static condition. Two different aeroengine materials, i.e. Super CMV (Cr-Mo-V) and Titanium alloys (Ti-6Al-4V), are examined. The usage of FEM analysis in plate under normal contact is validated with Hertzian theoretical solution in terms of contact pressure distributions. The residual stress distributions along with normal and shear stresses on elastic and plastic regimes of the materials are studied for a simple cylinder-on-flat contact configuration model subjected to normal loading, scratching and followed by unloading. The investigated friction coefficients are 0.3, 0.6 and 0.9, while scratching displacement amplitudes are 0.05 mm, 0.10 mm and 0.20 mm respectively. It is found that friction coefficient of 0.6 results in higher residual stress for both materials. Meanwhile, the predicted residual stress is proportional to the scratching displacement amplitude, higher displacement amplitude, resulting in higher residual stress. It is found that less residual stress is predicted on Super CMV material compared to Ti-6Al-4V material because of its high yield stress and ultimate strength. Super CMV material with friction coefficient of 0.3 and scratching displacement amplitude of 0.10 mm is recommended to be used in contact engineering applications due to its minimum possibility of fatigue.

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Macroscopic fretting variables in a splined coupling under combined torque and axial load

Cited by 53 publications

References 17 publications

Gross slip fretting wear performance of a layered thin W-DLC coating: Damage mechanisms and life modelling

Gross slip fretting wear performance of a layered thin W-DLC coating: Damage mechanisms and life modelling

Wear Characteristics of the Material Specimen and Method of Predicting Wear in Floating Spline Couplings of Aero-Engine

Prediction of residual stress using explicit finite element method

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