Growth of fretting fatigue cracks in a shrink-fitted joint subjected to rotating bending

Gutkin, Renaud; Alfredsson, Bo

doi:10.1016/j.engfailanal.2007.04.003

Cited by 49 publications

(27 citation statements)

References 14 publications

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“…This type of design is known to give a stress concentration at the connection ends, see e.g. Nishioka and Komatsu (1967), Kataoka et al (2007), Truman and Booker (2007), Gutkin and Alfredsson (2008) and Lee et al (2013).…”

Section: Stress Singularity Of Standard Designmentioning

confidence: 99%

On optimization of interference fit assembly

Pedersen

2016

Struct Multidisc Optim

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Assembly of shaft and hub by an interference fit is a classical connection with known advantages and disadvantages. The advantage being the level of possible torque transfer while the disadvantage is a possible fretting fatigue failure at the points of stress concentration. To improve the assembly the present paper discusses different optimized designs that improve the contact pressure distribution. The pressure distribution in the contact is the source responsible for the fatigue failure. The distribution can be improved by design modification done directly on the contacting surfaces which however requires a very high production precision. Alternatively it is shown, how hub side shape optimization can improve the pressure distribution significantly. The latter design change has no influence on the remaining shaft-hub design i.e. the attachment of other parts. The analysis is performed either by a traditional contact analysis, or by a super element contact analysis where no iterations are needed for the contact evaluation.

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Section: Stress Singularity Of Standard Designmentioning

confidence: 99%

On optimization of interference fit assembly

Pedersen

2016

Struct Multidisc Optim

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“…Besides, the torque can also be transferred by interference fit [1,2] with lower costs, since no connecting devices, such as keyway, pin hole and spline tooth, are in need. In addition, interference fit has the advantages of high bearing capacity, and able to withstand composite loads [3,4], and has been widely applied in heavy machinery, ship engine, general machinery and engines [1,[5][6][7], such as the contacts between the main bearing seat and the engine body, the engine bearing liner and the camshaft bearing seat, the cam and the hollow camshaft and so on.…”

Section: Introductionmentioning

confidence: 99%

Analytical Solution for Interference Fit for Multi-Layer Thick-Walled Cylinders and the Application in Crankshaft Bearing Design

Qiu

Zhou

2016

Applied Sciences

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Abstract:Interference fit is an important contact mode used for torque transmission existing widely in engineering design. To prevent trackslip, a certain magnitude of interference has to be ensured; meanwhile, the interference needs to be controlled to avoid failure of the mechanical components caused by high assembly stress. The finite element method (FEM) can be used to analyze the stress, while the computational cost of FEM involving nonlinear contact algorithm is relatively high, and likely to come across low precision and convergence problems. Therefore, a rapid and accurate analytical method for estimation is of vital need, especially for the initial design stage when the parameters vary in a large range. In this study, an analytical method to calculate the contact pressure and stress between multi-layer thick-walled cylinders (MLTWC) with multi-contact pairs and temperature-raising effect is proposed, and evaluated by FEM. The analytical solution of the interference for tri-layer thick-walled cylinders is applied to the design of engine crankshaft bearing. The results indicate that the analytical method presented in this study can reduce complexity of MLTWC problems and improve the computational efficiency. It is well suited to be used for the calculation model of parameter optimization in early design.

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“…Advantages are high rigidity, compactness, lightweight, reliable and non-expensive manner. However, the contact separation and failure occurrences for those common systems have been more rarely addressed in the literature [3]- [8]. Under cyclic bending or torsion loads, fretting could occur at the edge of the shaft-hub fitting surface.…”

Section: Introductionmentioning

confidence: 99%

Structural Integrity Evaluation of Generator Retaining Ring at Dieng Geothermal Power Plant

Djunaedi¹,

Nugraha²,

Soetraprawata³

2015

JOCET

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Abstract-The structural integrity of generator retaining ring at Dieng geothermal power plant has been evaluated using analytical and finite element method base on the scenario of the over speed at 100%, 120% and 150% of rated speed. To validate the evaluation, penetrant testing is applied with the retaining ring remains patches to its rotor. Base on the evaluation results of both methods, safety factor against yielding is greater than 1.0. Then based on the penetrant testing, it was not detected the presence of defects on the retaining ring generator surface. However from the displacement result which obtained by finite element, the displacement in third case has the same value as the interference therefore there is a possibility of retaining ring movement from its position that can lead to fretting failure.Index Terms-Generator retaining ring, structural integrity, finite elements, safety factor.

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Growth of fretting fatigue cracks in a shrink-fitted joint subjected to rotating bending

Cited by 49 publications

References 14 publications

On optimization of interference fit assembly

On optimization of interference fit assembly

Analytical Solution for Interference Fit for Multi-Layer Thick-Walled Cylinders and the Application in Crankshaft Bearing Design

Structural Integrity Evaluation of Generator Retaining Ring at Dieng Geothermal Power Plant

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