Design of joint between disk and shaft based on induction shrink fit

Doležel, Ivo; Kotlan, Václav; Ulrych, B.

doi:10.1016/j.cam.2014.02.023

Cited by 13 publications

(7 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…3 и 4 приведены эпюры распределения нормальных радиальных напряжений, полученных при СД вала с диском из ЭП741НП и ЭП975, соответственно. Известно [6,7], что сжимающие напряжения в зоне ТФС могут оказывать благоприятное влияние на образование физического контакта между заготовками. Результаты моделирования показали, что зоны со сжимающими радиальными напряжениями возникают в центральных частях заготовок вала и диска в области их контакта, при этом они более равномерно распределены при СД диска из сплава ЭП975, чем при СД диска из ЭП741НП.…”

Section: результаты моделированияunclassified

Computer simulation of pressure welding with a shear of samples from dissimilar nickel-based superalloys

2020

View full text Add to dashboard Cite

A stress-strain state computer simulation of samples imitating bimetallic "disk-shaft" type parts for a gas turbine engine from dissimilar heat-resistant nickel-based superalloys during pressure welding with a shear was carried out. The simulation was performed in a two-dimensional formulation (axisymmetric problem) using the DEFORM-2D. Two shaft motion schemes, embedding of a shaft into a disk and a combination of the embedding and rotation of the shaft, were considered. To determine the influence of the microstructure of samples on the plastic deformation process in the joint zone, two combinations of nickel-based superalloys were considered: the material for the shaft in all cases was EK79 (fine-grained microstructure, 7 μm), the material for the disk was EP741NP (coarse-grained microstructure, 60 μm) or EP975 (fine-grained microstructure, 8 μm). The constitutive relations for the superalloys under study were introduced into the program as the experimental stress-strain curves obtained from uniaxial compression of cylindrical samples. Computer simulation results showed that to improve the joint quality it was preferable to use pressure welding with the embedding and rotation of the shaft. In this case two-component shear deformation was provided that lead to a relative shift of the surfaces to weld and an improvement of the conditions for the formation of physical contact. It has been established that to obtain a solid phase joint between the shaft and the disk, it is preferred to use the EK79 (shaft) and EP975 (disk) superalloys, since in this case the summarized normal compressive stresses and shear deformations are provided which leads to an increase of the joint quality.

show abstract

Section: результаты моделированияunclassified

Computer simulation of pressure welding with a shear of samples from dissimilar nickel-based superalloys

2020

View full text Add to dashboard Cite

show abstract

“…Scholars at home and abroad have made extensive researches on the corresponding problems of interference fit connection of peg-holes, and have achieved certain results. Zhang et al(2000) used the finite element method to analyze the stress in the interference connection of the peg-hole (Doležel et al 2014 andWang et al 2017). This method has the quantitative advantage compared with the traditional design method.…”

Section: Contact Stress Analysis Of Disc Cutter Peg-hole With Interfementioning

confidence: 99%

Contact stress analysis of disc cutter peg-hole with interference fit

Zhang

et al. 2019

Transactions of the Canadian Society for Mechanical Engineering

View full text Add to dashboard Cite

To study the relation of the interference fit between cutter body and cutter ring, a theoretical design of interference fit of the cutter peg-hole is carried out according to the theory of thick-walled cylinders. The finite element method is used to analyzed the mapping relationship between the contact stress of cutter ring and cutter body. Thermal expansion assembly of the cutter ring is simulated, and the temperature of the thermal expansion assembly of the cutter ring is determined. The result shows that the contact length between the cutter body and the cutter ring has little influence on the contact stress of the cutter ring, but with increasing contact length the stress concentration of the retaining ring will increase. The contact stress of the cutter ring is basically the same at the same amount of interference and temperature, but the contact stress of the ring decreases with increasing contact length at high temperature. When the contact length is the same, the contact stress and the radial force of the mating surface increase with increasing amount of interference. The reasonable temperature for thermal expansion assembly of the cutter ring is 160 °C.

show abstract

“…Later on, many special investigations were devoted both to the commonly used thermal mounting process and the effects of various material and/or geometrical characteristics. As examples for both topics here two more recent studies shall be quoted, i.e., Dole zel et al [17] and Baykara and G€ uven [18], respectively. Moreover, specific design procedures were suggested, e.g., by Baldanzini [19] and Alexandrov et al [20]; a number of further references to all of these issues can be found in these articles and also in [10,11,13].…”

Section: Introductionmentioning

confidence: 99%

Effects of homogeneous and inhomogeneous heating on rotating shrink fits with annular inclusion and functionally graded hub

Apatay

Arslan

Mack

2019

Journal of Thermal Stresses

View full text Add to dashboard Cite

For given geometrical properties of a shrink fit, the interface pressure is decisive for reliable operation and should stay as large as possible during operation. Using an appropriate functionally graded material for the hub facilitates a less decreasing interface pressure with increasing angular speed and, moreover, substantial weight-reduction. However, temperature cycles may influence the interface pressure considerably, and if partial plastification occurs, even a permanent decrease may result. These issues are discussed by analytical means, and both homogeneous and inhomogeneous temperature fields in an initially elastic shrink fit with hollow steel inclusion and steel-aluminum FGM-hub are considered.

show abstract

Design of joint between disk and shaft based on induction shrink fit

Cited by 13 publications

References 3 publications

Computer simulation of pressure welding with a shear of samples from dissimilar nickel-based superalloys

Computer simulation of pressure welding with a shear of samples from dissimilar nickel-based superalloys

Contact stress analysis of disc cutter peg-hole with interference fit

Effects of homogeneous and inhomogeneous heating on rotating shrink fits with annular inclusion and functionally graded hub

Contact Info

Product

Resources

About