The static and dynamic stiffness of interference shrink-fitted joints

Thornley, R. H.; Elewa, Ibrahim M.

doi:10.1016/0890-6955(88)90026-0

Cited by 12 publications

(4 citation statements)

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“…From the ANOVA (Table 4) it is clear that only the linear effects of interference and average undulation number are significant and the higher-order effects and interaction effects are negligible. Earlier investigations [15][16][17][18] observed the influence of the surface roughness of mating surfaces on the load bearing ability of interference-fitted assemblies. However, these investigations did not touch upon the roundness profile in general and the average undulation number in particular.…”

Section: Discussionmentioning

confidence: 99%

“…A theory has been developed for accurate estimation of the fitting strength between rough surfaces by introducing the load-deflection relationship at the contact interface [15]. Thornley and Elewa [16] investigated the effect of size, surface roughness, and interference value on the static and dynamic stiffness of shrink fitted joints. The surface roughness at the contact surface influences the tangential displacement of mating surfaces.…”

Section: Introductionmentioning

confidence: 99%

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Load bearing ability of interference-fitted assemblies: A roundness profile analysis

Sogalad

Udupa

2009

Proceedings of the Institution of Mechanical Engineers, Part C:

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This article makes a detailed study of the influence of harmonics and the average undulation number of roundness profiles on the load bearing ability of interference-fitted assemblies. For this purpose, a plan of experiments was prepared by taking 3 2 factorial design with interference and the average undulation number as parameters. The analysis reveals that both the parameters influence the load bearing ability of interference-fitted assemblies. Further, it is found that harmonics influence the load bearing ability of interference-fitted assemblies.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Load bearing ability of interference-fitted assemblies: A roundness profile analysis

Sogalad

Udupa

2009

Proceedings of the Institution of Mechanical Engineers, Part C:

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“…They applied an experimental method correlated with finite element modeling of joint to perform analysis. Thornley and Elewa [3] considered the influence of surface roughness, size and amount of interference on the static and dynamic stiffness of interference fit joints.…”

Section: Introductionmentioning

confidence: 99%

Friction coefficient estimation in shaft/bush interference using finite element model updating

Seifi

Abbasi

2015

Engineering Failure Analysis

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“…Ramachandran and Radhakrishnan 7 analysed the influence of surface finish on interference fits and reported that the performance of the assembly can be correlated with the roughness of mating parts. Thornley and Elewa 8 studied the effect of size and roughness on stiffness of shrink fits and found that displacement of assembly occurred at lower interference and high roughness value. Ramamoorthy and Radhakrishnan 9 worked on improving the load-carrying capacity of interference fits and reported that better surface finish leads to intimate contact thereby improving load-carrying capacity.…”

Section: Introductionmentioning

confidence: 99%

Combined effect of cylindricity, roundness and roughness on axial load-carrying ability of interference fits

Raj

Bhatti

Dhanish

2020

Proceedings of the Institution of Mechanical Engineers, Part J:

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Interference fits are commonly used in engineering for various applications. While the effect of many factors on the load-carrying ability of interference fits has been studied extensively, the combined effect of cylindricity, roundness and roughness does not appear to have been considered to that extent, and this paper is an attempt to remedy the situation. As a first step, finite element method was used to verify that there will be a reduction in the load-carrying ability due to the introduction of perfect geometrical deviations on the shaft. Thereafter, a detailed experimental investigation was carried out to study the effect of cylindricity and their joint effect with various other factors on the axial load-carrying ability of shaft–bearing interference fitted assemblies. A number of shafts of C40 steel of nominal diameter 20 mm were manufactured with varying cylindricity values and selectively assembled with standard deep grove ball bearings, thereby achieving interference fits with a grade of H7/u6 between them. The assembled specimens were tested on a Universal Testing Machine with a specially made fixture and the maximum extraction load determined. The effect of the various factors on the extraction load was examined using statistical methods. It was found that shaft cylindricity error did reduce the load-carrying ability of interference fits. The combination of interference, cylindricity and surface roughness was found to give the best prediction for extraction load. Certain other parameters were also examined, but they were not found significant.

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The static and dynamic stiffness of interference shrink-fitted joints

Cited by 12 publications

References 1 publication

Load bearing ability of interference-fitted assemblies: A roundness profile analysis

Load bearing ability of interference-fitted assemblies: A roundness profile analysis

Friction coefficient estimation in shaft/bush interference using finite element model updating

Combined effect of cylindricity, roundness and roughness on axial load-carrying ability of interference fits

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