Fractal analysis of engineering ceramics ground surface

Liang, Xiaohu; Lin, Bin; Han, Xuesong; Chen, Shangong

doi:10.1016/j.apsusc.2012.03.050

Cited by 55 publications

(23 citation statements)

References 28 publications

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“…In order to carry out the thermal analysis by finite elements of the heat sink with fins in forms of a Cesaro curve, initially, the growth procedure of the Cesaro curve is performed, as shown in Figure 1. The mathematical analysis of the Cesaro curve is obtained from the Equation 1, which requires knowing the initial length of the main branch (Lo) and the generation to be obtained (n), from it you can get the length (L) of each of the sub-branches that are obtained in each iteration [33].…”

Section: Methodsmentioning

confidence: 99%

Design of passive heat sinks to power semiconductor with the cesaro curve

Ruiz-Cardenas

Llano-Sánchez

Cajeli

et al. 2020

redin

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In the design of electronic circuits, stands out the power stage, which is responsible of increasing the signal characteristics, as current and voltage, for an appropriate performance of the device to fabricate. However, this stage is composed of elements like transistors, which may have a low performance, due to the undesired temperature increase, as a result of reaching the desired power. To mitigate the loss of power and with it, the temperature rise, the management of heat sink is proposed, in order to keep the work of the power stage at a stable level and avoid thermal fractures within the circuit. This manuscript presents the obtained results of the thermal analysis in finite elements of the heat sink with fins in the form of a Cesaro curve, for power semiconductors, which evidence the increase in the heat flow, with respect to the commercial ones and so, facilitate the heat evacuation for conditioning the voltage and/or current.

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Section: Methodsmentioning

confidence: 99%

Design of passive heat sinks to power semiconductor with the cesaro curve

Ruiz-Cardenas

Llano-Sánchez

Cajeli

et al. 2020

redin

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“…It was found that the high-frequency information of machined surfaces is uncorrelated with the machining process, which can reflect the anisotropic features of material structure. Liang et al [21] improved the variation method by modifying the error and succeeded in evaluating the engineering ceramics ground surface. Further, the relationship between fractal dimension and traditional roughness parameters, surface texture, surface function and material property were analyzed using the adapted method.…”

Section: Introductionmentioning

confidence: 99%

Fractal analysis of surface topography in ground monocrystal sapphire

Wang

Liang

Wang

et al. 2015

Applied Surface Science

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“…This description has gained general consent in modelling of machining surfaces. The characteristics of surface errors on waveguide's inner wall fit well with a fractal function (Liang et al, 2012;Mandelbrot, 1982). The function can be written as:…”

Section: Modelling Of the Surface Errorsmentioning

confidence: 99%

Reconstruction of surface errors of the metallic waveguide based on electromagnetic scattering theory

Tang

2016

IJSURFSE

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Abstract:First, the fractal model of surface errors was constructed by means of the Monte Carlo method, and the source term and spectral amplitude of surface errors were calculated. The reconstruction model of surface errors was then established. The non-differentiable problem of the fractal model was solved by the fractional differential theory. To verify the accuracy of proposed models, a waveguide filter was manufactured. The reconstruction results obtained by the fractal function model were compared with the measured results, and a comparison of the results obtained by different reconstruction models proves that the fractal function is optimal in modelling.Keywords: reconstruction; surface error; metallic waveguide; electromagnetic scattering; fractal function.Reference to this paper should be made as follows: Li, N. and Tang, B. (2016) 'Reconstruction of surface errors of the metallic waveguide based on electromagnetic scattering theory', Int.

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Fractal analysis of engineering ceramics ground surface

Cited by 55 publications

References 28 publications

Design of passive heat sinks to power semiconductor with the cesaro curve

Design of passive heat sinks to power semiconductor with the cesaro curve

Fractal analysis of surface topography in ground monocrystal sapphire

Reconstruction of surface errors of the metallic waveguide based on electromagnetic scattering theory

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