Numerical optimization of wear performance – Utilizing a metamodel based friction law

Serafinska, Aleksandra; Hassoun, Nermeen; Kaliske, Michael

doi:10.1016/j.compstruc.2015.11.013

Cited by 14 publications

(7 citation statements)

References 18 publications

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“…Many studies showed that [1][2][3][4][5][6][7][8] thermal field, arcing, and electrical discharge influent the wear rate of the brush surface, and the proportion of electrical wear ranges from 1/2 to 2/3 of the total wear of the brushes. According to many studies [9][10][11][12]. The third body in tribology and numerical wear optimization is a new demonstrated method.…”

Section: Introductionmentioning

confidence: 99%

Wear Behavior of Graphic Brush for Motors in the High Humidity of Tropical Climate with Current

Pham¹,

Le²,

Nguyen³

2022

Tribol. Ind.

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The motor with commutator brushes pair is widely used in industrial equipment. During operation, the brush and commutator of the motor will wear out, especially in humid tropical monsoon conditions. The commutator brushes pairs operate in both loading conditions: Mechanic and Electric. The temperature, velocity, spring pressure, current, material, and environmental conditions, especially high humidity of ambient air, directly affect the wear of commutator brushes pair. This paper presents studying results on the wear behavior of graphite brushes when used in conditions changes as relative humidity and current. Initial experimental results showed that relative humidity had influenced brush wear. The wear rate increases by 1.8 to 2 times when humidity increases from 51% to 99%. The wear graphs of the brushes depend on current more than relative humidity with tropical climate characteristics. The specific wear rate changed about 2.88 times in this study.

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Section: Introductionmentioning

confidence: 99%

Wear Behavior of Graphic Brush for Motors in the High Humidity of Tropical Climate with Current

Pham¹,

Le²,

Nguyen³

2022

Tribol. Ind.

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“…The best results are achieved when it is used in conjunction with structural optimization methods [13]. FEA plays an important role in multi-objective optimization of tyre characteristics, such as manoeuvrability [14][15][16], endurance [15,17], rolling resistance [14], wear [18,19] or riding comfort [17].…”

Section: Introductionmentioning

confidence: 99%

Tyre Design and Optimization by Dedicated CAD Tyre Model

et al. 2021

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Structural optimization by Finite Elements (FE) is proved very effective in tyre design. For that purpose, major tyre manufacturers use in-house applications. An alternative solution, involving dedicated CAD tyre model (DCTM), is here proposed. DCTM concept permits to easily change the FE tyre models, concerning shape and structure, by moving a part of pre-processing from FE analysis to CAD. No special skills regarding CAD or FEA are required. For every new tyre design, only a new DCTM and a corresponding FE model must be built. All subsequent model changes are automatically performed by mapping and translation routines. To test this concept, DTCM models of an existing tyre were created and used within a pilot design study.

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“…[13,14], may be performed, and also serve as the means for virtual experimentation in the structural optimization process, e.g. [15,16]. In FEA of tires, structural reinforcements may be modeled using a number of different methodologies, where two approaches generally prevail: modeling based on composite materials theory [17] and separate modeling of the rubber matrix and cords using "rebar" elements [18] (Figure 1).…”

Section: Introductionmentioning

confidence: 99%

Performance evaluation of cord material models applied to structural analysis of tires

Korunović

Fragassa

Marinković

et al. 2019

Composite Structures

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Tires are, in essence, a composite structure made of reinforced elastomers. As in other composite structures, the accuracy of finite elements (FEs) in predicting the performance of a tire is highly dependent on the validity of the material models chosen to describe the mechanical behavior of its constituents. This paper concentrates on the material modeling of tire reinforcements, and analyzes several material models, namely linear, Yeoh and Marlow, which are quite common in these investigations. A realistic tire is considered as a general system and the most relevant results are discussed concerning precision, computational efficiency and complexity in parameters identification. The advantages of non-linear material models, especially of the Marlow model, are outlined. To the authors' knowledge, no study has addressed the abovementioned aspects of the application of tire cord models in FE analysis of tires in such detail or directly compared the performance of cord models in a realistic example.

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Numerical optimization of wear performance – Utilizing a metamodel based friction law

Cited by 14 publications

References 18 publications

Wear Behavior of Graphic Brush for Motors in the High Humidity of Tropical Climate with Current

Wear Behavior of Graphic Brush for Motors in the High Humidity of Tropical Climate with Current

Tyre Design and Optimization by Dedicated CAD Tyre Model

Performance evaluation of cord material models applied to structural analysis of tires

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