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RISS 인기검색어
- 검색키워드
- 저자 : A. Alper Ozalp (검색결과 4 건)
- 무료
- 기관 내 무료
- 유료
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Ozalp B. Turker,Ozalp A. Alper The Korean Society of Mechanical Engineers 2006 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.20 No.10
Slider bearings are widely applied in mechanical systems, where the design needs cover increased load capacity, lowered friction and power consumption and creative designs. This work is governed to perform a parametric characterization, by generating a novel structure on the upper slider surface, which can formally be expressed in micro-machined wavy-form, where the individual and combined influences of various structural design parameters and boundary conditions, on the performance records, are also evaluated. Computations put forward that the contribution of the wave amplitude on power loss values is highly dependent on the level of inlet pressure; higher amplitudes are determined to increase power loss in the lowest inlet pressure case of 1.01, whereas the contrary outcome is determined in the higher inlet pressure cases of 3.01 & 5.01. Designing the slider bearing system, based on optimal load capacity, produced the optimum wave number ranges as 10-45, 7-11 and 5-8 for the pad inclinations of $5^{\circ},\;4^{\circ}$ and $3^{\circ}$ respectively.
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Slider-Bearing Design with Micro-Machined Wavy-Cavity
B. Turker Ozalp,A. Alper Ozalp 대한기계학회 2006 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.20 No.10
Slider bearings are widely applied in mechanical systems, where the design needs cover increased load capacity, lowered friction and power consumption and creative designs. This work is governed to perform a parametric characterization, by generating a novel structure on the upper slider surface, which can formally be expressed in micro-machined wavy-form, where the individual and combined influences of various structural design parameters and boundary conditions, on the performance records, are also evaluated. Computations put forward that the contribution of the wave amplitude on power loss values is highly dependent on the level of inlet pressure ; higher amplitudes are determined to increase power loss in the lowest inlet pressure case of 1.01, whereas the contrary outcome is determined in the higher inlet pressure cases of 3.01 & 5.01. Designing the slider bearing system, based on optimal load capacity, produced the optimum wave number ranges as 10-45, 7-11 and 5-8 for the pad inclinations of 5°, 4° and 3° respectively.
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Merve Biyikl,Taner Karagoz,Metin Calli,Talha Muslim,A. Alper Ozalp,Ali Bayram 대한금속ᆞ재료학회 2023 METALS AND MATERIALS International Vol.29 No.2
Laser metal deposition (LMD) is an additive manufacturing process used in manufacturing freeform geometries, repairapplications, coating and surface modification, fabrication of functionally graded materials. It has a broad range of applicationsin various industries, including aviation, space, defence, automotive, tooling, etc. In this work, a multi-physics modelof the LMD process was developed to rapidly predict the geometrical characteristics of the single clad track using the commercialsoftware package Flow-3D. The volume of fluid (VOF) method was integrated to differentiate the interface betweenthe metallic and gaseous cells. To validate the numerical model single bead tracks were deposited, and cross-sections of thebeads were analysed. Mathematical formulae to predict different aspects of the single clad track (height, width, and depth)were derived using regression analysis. The influence of the process parameters on the geometrical characteristics of thesingle clad track was analysed in detail using analysis of variance (ANOVA). Both multi-physics model and mathematicalregression model results were compared to the experimental measurements. The results were in good agreement with theexperimental results.
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Merve Biyikli,Taner Karagoz,Metin Calli,Talha Muslim,A. Alper Ozalp,Ali Bayram 대한금속·재료학회 2023 METALS AND MATERIALS International Vol.29 No.3
Laser metal deposition (LMD) is an additive manufacturing process used in manufacturing freeform geometries, repairapplications, coating and surface modification, fabrication of functionally graded materials. It has a broad range of applicationsin various industries, including aviation, space, defence, automotive, tooling, etc. In this work, a multi-physics modelof the LMD process was developed to rapidly predict the geometrical characteristics of the single clad track using the commercialsoftware package Flow-3D. The volume of fluid (VOF) method was integrated to differentiate the interface betweenthe metallic and gaseous cells. To validate the numerical model single bead tracks were deposited, and cross-sections of thebeads were analysed. Mathematical formulae to predict different aspects of the single clad track (height, width, and depth)were derived using regression analysis. The influence of the process parameters on the geometrical characteristics of thesingle clad track was analysed in detail using analysis of variance (ANOVA). Both multi-physics model and mathematicalregression model results were compared to the experimental measurements. The results were in good agreement with theexperimental results.
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