Computer Simulation/Prediction of Wear in Mechanical Components

Mukras, Saad M. S.

doi:10.1155/2020/8867351

Cited by 14 publications

(8 citation statements)

References 146 publications

(176 reference statements)

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“…where w I S v The majority of the encountered wear laws, discussed by Mukras [80], required determining contact pressure and the sliding amounts between the mating surfaces. The contact pressure can be The SAM hypothetically assumed the local load distribution.…”

Section: Wear Model For the Stud Of The Steering Rodmentioning

confidence: 99%

The Measurement of the Wear of Tie Rod End Components

Woźniak¹,

Rylski²,

Siczek³

2022

sv-jme

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This study aimed to determine the wear intensity of the bearing mating with the ball stud in the tie rod end. The course of the vehicle driving during the period between repairs of the steering assembly was assumed. The modelled scheme of cornering was assumed to be close to the real one. The model of steering mechanism allowing determination of the load of the stud of the tie rod end as a function of the steering angle was elaborated and presented. The model of the ball stud was realized and described. The values of wear intensity for components were calculated and presented.

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Section: Wear Model For the Stud Of The Steering Rodmentioning

confidence: 99%

The Measurement of the Wear of Tie Rod End Components

Woźniak¹,

Rylski²,

Siczek³

2022

sv-jme

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“…Other researchers have developed and applied other relation forms for fractional coverage in the modeling of the lubrication processes [ 25 , 26 , 27 , 28 , 29 ]. The model (CVFC) used in this paper, considers and admits the smooth slider pad, and the friction response is mainly dependent on the thickness (height) variation, h of the transferred solid lubricant film, that covers the disk asperities (see Figure 2 b).…”

Section: Theoretical Considerationsmentioning

confidence: 99%

“…The studying of the third body from ref. [ 24 ] was extended by Mukras [ 25 ] to establish the mass-equilibrium laws and to express wear between the tribo-surfaces, when a third body is formed, using a computerized simulation of wear.…”

Section: Introductionmentioning

confidence: 99%

“…The CVFC model was developed and applied to quantify the deposition process and to extend the mass-equilibrium concept from ref. [ 25 ] and to study the correlation between pellet transferred film (deposited solid lubricant) and the slider pad wear (exhausted solid lubricant) on a tribometer with two pellet/disk and slider pad/disk simultaneous contacts (simultaneous setup).…”

Section: Introductionmentioning

confidence: 99%

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Tribological Properties Study of Solid Lubrication with TiO2 Powder Particles

2022

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Titanium dioxide (TiO2), by its tribological behavior, is known as a solid lubricant. TiO2 as a solid lubricant, together with tungsten disulfide (WS2) and molybdenum disulfide (MoS2) decreases friction and excessive wear. By compacting TiO2 powder, pellets are formed. Studies and research on the solid lubricant coatings were conducted with success on a tribometer with the possibility of making two simultaneous contacts, pellet/disk, and slider pad/disk. On the disk of a tribometer, we studied the lubrication characteristics of the TiO2 powder particles as the third body by intentionally transferring. Results show that the TiO2 pellet behaved like an effective oil-free lubricant by self-repairing and self-replenishing. In experiments, a TiO2 pellet is intentionally sheared against the surface of the disk, while the slider pad slips loaded on the lubricated surface until the deposited powder film is exhausted. A theoretical model control volume fractional coverage (CVFC) was used to estimate both the wear rate for the lubricated pellet/disk sliding contact and the friction coefficient at the pad/disk separation surface. According to materials properties, disk velocity, pellet and slider pad load, the pellet wear rate, and slider pad friction coefficient, using the CVFC model, can establish the pellet wear rate, and slider pad friction coefficient. The fractional coverage represents a parameter of the CVFC model that varies with time, and it is useful for estimating the film amount from the third body that covers the disk asperities. Model results well enough describe the tribological behavior of the sliding contacts in experiments, both qualitatively and quantitatively. In addition, the theoretical results obtained by modeling and the experimental those obtained in the process of friction, are compared.

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“…Computational methods and models such as the FEM and Archard's wear model (or a modified version) have been broadly investigated in the literature [18][19][20][21][22][23], including for specific applications (e.g., gears [24]). Recently, Mukras [25] presented a thorough review of the literature on simulation and prediction of wear. Surprisingly few investigations have focused on the wear experiments themselves.…”

Section: Introductionmentioning

confidence: 99%

A Closer Look at the Contact Conditions of a Block-on-Flat Wear Experiment

2022

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Specific wear rates of tribosystems always rely on the data obtained from wear experiments. Nonetheless, the events taking place during an experiment may often lead to wide variations and low repeatability of the results. In this work, the authors attempt to take a closer look into the dynamic contact conditions of a dry linearly reciprocating block-on-flat wear experiment. The finite element method and Archard’s wear model are used through COMSOL Multiphysics® 5.2a and LiveLink™ for MATLAB® software to model the wear and study the influence of different conditions of the block surface and alignment of the sample. Changes of the geometry of the block and the contact pressure are quantified for several back and forth motions, using an extrapolation scheme in the wear modelling methodology. The tracking of such changes allow a dynamic overview of how the block contact area and the contact pressure distribution change throughout time. The results show how the assumption of a constant contact area and use of a nominal contact pressure in calculating the wear rate in such experiments can be inappropriate, especially in the presence of roughness and misalignments of the block.

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Computer Simulation/Prediction of Wear in Mechanical Components

Cited by 14 publications

References 146 publications

The Measurement of the Wear of Tie Rod End Components

The Measurement of the Wear of Tie Rod End Components

Tribological Properties Study of Solid Lubrication with TiO2 Powder Particles

A Closer Look at the Contact Conditions of a Block-on-Flat Wear Experiment

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