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Document Type |
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Thesis |
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Document Title |
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MATERIAL OPTIMIZATION OF CONNECTIGN ROD USING FUNCTIONALLY GRADED MATERIALS (FGM) التصميم الأمثل لعامود التوصيل بإستخدام المواد ذات الخواص المتدرجة |
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Subject |
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Faculty of Engineering |
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Document Language |
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Arabic |
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Abstract |
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Connecting rod is one of the most common mechanical parts that used in many mechanical applications such as combustion engines, reciprocating pumps and compressors. The connecting rod is subjected to a complex state of loading. High compressive loads due to combustion, high tensile loads due piston mass and bending stress due connecting rod's mass of inertia. So, it is a highly stressed component due to multi stresses. The Development of this part leads to total improvement for entire engine. In this study, two steps of improvement have been carried on connecting rod design. The firs step is shape optimization, and the second step is material optimization. This thesis presents studies of connecting rod kinematics, kinetics, manufacturing, design, and optimization. The thesis investigates shape optimization of the connecting rod in order to reduce the stresses, and optimization of the material by utilizing functionally graded material (FGM) technology to reduce the weight of connecting. In addition, increasing the strength and rigidity is considered to minimize Von-Mises stress. By optimizing both shape of connecting rod and material, the maximum Von-Mises stress is reduced. The study is carried out by using ANSYSã 11 finite element software. A dynamic analysis for 2D finite element model of connecting rod was carried out to determine the critical load conditions. Optimization of 2D finite element model is done for the more stressed regions; small end and big end. Also, optimization of 3D finite element model is studied for stress and buckling mode shape with Eigen analysis. Finally, three materials compositions are used to optimize the connecting rod by functionally graded material technology. They are steel, aluminum, and titanium. The optimum material composition is presented. The results show that the maximum stress is reduced around 6% by shape optimization, and around 40% stress reduction is achieved by material optimization. |
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Supervisor |
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Prof. Dr. Hassan Hedia |
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Thesis Type |
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Master Thesis |
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Publishing Year |
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1432 AH
2011 AD |
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Co-Supervisor |
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Dr. Saad Aldousari . Dr. Ismil Najjar |
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Added Date |
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Sunday, August 21, 2011 |
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Researchers
| غازي هادي السروجي | Alsoruji, Ghazi Hadi | Researcher | Master | |
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