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العنوان
Techno-Economical Optimization Applied to Nile Container Ships /
المؤلف
Mohammed, Moustafa Mohammed Moustafa.
هيئة الاعداد
باحث / مصطفي محمد مصطفي محمد
مشرف / مؤمن محمد جعفري
مشرف / هبه السيد الكيلاني
مشرف / جلال محمد يونس
مناقش / هبه وائل لهيطه
مناقش / ليلي بسيوني قمر
الموضوع
Naval Architecture. Marine Engineering. ships.
تاريخ النشر
2011.
عدد الصفحات
i - xv, 125 p., 8 leaves :
اللغة
الإنجليزية
الدرجة
الدكتوراه
التخصص
الهندسة (متفرقات)
تاريخ الإجازة
15/10/2011
مكان الإجازة
جامعة بورسعيد - كلية الهندسة ببورسعيد - الهندسة البحرية وعمارة السفن
الفهرس
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Abstract

The aim of the present thesis is to develop a practical procedure for the preliminary design of an optimum self propelled inland container ship working between Cairo and Aswan through River Nile. This design problem is handled as a non-linear constrained single objective optimization problem. Some optimization basics are presented to classify and formulate different optimization problems. Some techniques for solving non-linear constrained single objective optimization problems are reviewed.
Some economical and technical aspects for self propelled inland container ship design are formulated to be used as a guide in the optimization process. Appropriate analytical and empirical relationships are used to obtain the ship geometry, ship stability, engine power and propeller characteristics, ship weight and ship cost in the preliminary design stage are formulated to suit inland ship design. Two empirical formulae, for the determination of ship steel weight and power prediction in the preliminary design stage of conventional self propelled inland container ships, are proposed.
As the required freight rate reflects the major goal of any commercial ship, it is considered as the objective function for this optimization process. Ship length, breadth, draft, depth and speed are taken as the design variables for such problem. The constraints on such problem are investigated in details to define the space of acceptable solutions from which the best solution has to be found. Required freight rate of the optimum design can be taken as a guide to predict the container transporting price which gives an acceptable profit for the transportation companies.
This problem is carried out using a developed Visual Fortran computer program called CACSO. This program is used to find the optimum characteristics of a self propelled inland container ship working between Cairo and Aswan through River Nile. Moreover, This program can be simply modified to suit not only the other navigation routes but also the other River Nile ship types.
The torsional behavior of the optimum design of Cairo-Aswan container ship is studied to ensure the adequacy of the wide hatch opening proposed design. A sensitivity study is then carried out to indicate the relative dependence of the objective function on some operational factors that may change throughout ships’ life.