On the optimal texture shape with the consideration of surface roughness

Bei, Guangyao; Ma, Chongfang; Wang, Xilong; Sun, Jun; Ni, Xingya

doi:10.1038/s41598-022-19094-8

Cited by 7 publications

(4 citation statements)

References 32 publications

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“…Application of surface texturing on bearing of hip prosthesis with dimple on interacting surfaces would bring several advantages, such as reducing wear rate 19 , increasing lubrication performance 20 , and trapping wear debris 21 . Then, maximize dimple parameter such as depth 22 , diameter 23 , number 24 , pattern 25 , space 26 , and shape 27 is crucial as explained be Pakhaliuk et al 28 for their study in textured femoral head of hip prosthesis.…”

Section: Introductionmentioning

confidence: 99%

Performance of textured dual mobility total hip prosthesis with a concave dimple during Muslim prayer movements

Muchammad,

Tauviqirrahman,

Ammarullah

et al. 2024

Sci Rep

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The single mobility bearing as a previous bearing design of total hip prosthesis has severe mobility constraints that can result in dislocation during Muslim (people who follow the Islam as religion) prayer movements, specifically shalat that requires intense movement. There are five intense movements (i.e., bowing, prostration, sitting, transition from standing to prostration, and final sitting) during Muslim prayer that may generate an impingement problem for patients with total hip prosthesis. In this work, textured dual mobility total hip prosthesis with two textured cases (i.e., textured femoral head and textured inner liner) are presented and their performances are numerically evaluated against untextured surface model during Muslim prayer movement. The concave dimple design is chosen for surface texturing, while for simulating femoral head materials, SS 316L and CoCrMo is choosen. To represent the real condition, three-dimensional computational fluid dynamics (CFD) coupled with two-way fluid–structure interaction (FSI) methods are employed to analyze elastohydrodynamic lubrication problem with non-Newtonian synovial fluid model. The main aim of the present study is to investigate the tribological performance on dual mobility total hip prosthesis with applied textured surface with concave dimple in femoral head and inner liner surface under Muslim prayer movements. It is found that applying surface texturing has a beneficial effect on the lubrication performance for some intense movements. The textured femoral head model performs better than textured inner liner model and untextured model (both femoral head and inner liner). The numerical results also indicate superior performance of CoCrMo femoral head compared to SS 316L femoral head. These findings can be used as a reference for biomedical engineers and orthopedic surgeons in designing and choosing suitable total hip prosthesis for Muslims makes they can carry out Muslim prayer movements like humans in general who have normal hip joints.

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Section: Introductionmentioning

confidence: 99%

Performance of textured dual mobility total hip prosthesis with a concave dimple during Muslim prayer movements

Muchammad,

Tauviqirrahman,

Ammarullah

et al. 2024

Sci Rep

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“…A new innovation to enhance heat transfer is applying the bionic principle for the structure optimization of microchannels [5,6]. This expands the heat exchange area and mix fluid and separates the boundary layer by adding bionic ribs [7].…”

Section: Introductionmentioning

confidence: 99%

Numerical Investigations of Heat Transfer and Fluid Flow Characteristics in Microchannels with Bionic Fish-Shaped Ribs

Gao

Zou

2023

Processes

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Microchannel cooling technology is an effective method to solve local thermal stacking. In this paper, four innovative microchannels with bionic fish-shaped rib arrangements (CM-O, CM-R, CM-H, and CM-G) are designed by imitating geese and fish clusters. The heat transfer and flow characteristics of the microchannels are simulated numerically at different Reynold’s numbers (Re = 200 − 1600). The liquid water temperature and flow field in the four innovative microchannels with bionic ribs are analyzed. The results show that the ribs’ arrangement has an influence on the thermal performance of microchannels. Compared to the smooth microchannel (CM), the of the Nu microchannels with the bionic fish-shaped ribs increases by 33.00–53.26% while the fave increases by 28.63–34.93% at Re = 1200. The vortices around the ribs are clearly observed which improves the temperature gradient. The performance evaluation criterion (PEC) of CM-H is higher than that of the others. This indicates that the rib arrangement of CM-H is superior for heat dissipation application.

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“…The forming of machined surface topography is directly related to the machining process. All factors in the machining process, including the various vibrations of the cutter, workpiece, spindle, guide way, and the processing parameters such as feed rate, cutting speed, cutting depth, lubrication, material parameters, and the geometric parameters of the cutting tool can act on the machined surface topography [5,6].…”

Section: Introductionmentioning

confidence: 99%

Prediction Model of Three-Dimensional Machined Potassium Dihydrogen Phosphate Surfaces Based on a Dynamic Response Machining System

Pang

Xiong

2022

Materials

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To comprehensively obtain the effect of the machining process on the three-dimensional surface topography of machined potassium dihydrogen phosphate crystals, a dynamic response model of a machining system was built to calculate the dynamic displacement variables in the different processing directions. This model includes almost all processing factors, such as cutting parameters, environment vibration, radial and axial runout of the spindle, cutting tool parameters, material parameters, guide way error, fast tool servo and lubrication condition errors, etc. Compared with the experimental results, the three-dimensional topographies and two-dimensional profiles of the simulation surfaces were nearly consistent with those of experimental machined surfaces. As the simulation shows, the cutting parameters, axial runout of the spindle, and the output noise of the fast tool servo can respectively impact the main, low, and high frequencies of the machined surface topography. The main frequency of all the simulated and experimental surfaces in this study was 0.0138 μm−1. The low and high frequencies of the simulation surfaces had slight differences, about 0.003 μm−1 from those of the experimental surfaces. The simulation model, based on dynamic response, can accurately predict the entire machining process and three-dimensional topographies of machined potassium dihydrogen phosphate surfaces.

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On the optimal texture shape with the consideration of surface roughness

Cited by 7 publications

References 32 publications

Performance of textured dual mobility total hip prosthesis with a concave dimple during Muslim prayer movements

Performance of textured dual mobility total hip prosthesis with a concave dimple during Muslim prayer movements

Numerical Investigations of Heat Transfer and Fluid Flow Characteristics in Microchannels with Bionic Fish-Shaped Ribs

Prediction Model of Three-Dimensional Machined Potassium Dihydrogen Phosphate Surfaces Based on a Dynamic Response Machining System

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