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تاثير ابعاد وموقع الحز على الانحراف ، الانبعاج والاهتزاز الحر لعتبة متدرجة وظيفيا == The Effect of Notch Dimensions and Position on Deflection, Buckling and Free Vibration of Functionally Graded Beam

Author name: رغد عزيز نعمة
Supervisor name: Luay S. Alansari
General topic: Mechanical Engineering
Specific topic: Mechanical Engineering
Degree: Doctorate
University: University Of Basrah - College Of Engineering - Department Of Mechanical Engineering
Language: English
University location: Basrah
First pages:

دراسة عملية وعددية لقدم اصطناعية رياضية مصنعة من مواد مركبة هجينة == Experimental and Numerical Study of Athletic Prosthetic Foot Laminated from Hybrid Composite Materials

Author name: حيدر كريم طلاع
Supervisor name: Abdul Kareem F. Hassan | Jawad Kadhim Oleiwi
General topic: Mechanical Engineering
Specific topic: Mechanical Engineering
Degree: Doctorate
University: University Of Basrah - College Of Engineering - Department Of Mechanical Engineering
Language: English
University location: Basrah
First pages:

الموازنة متعددة المتسويات للمكائن الدوارة بواسطة قياس الاستجابة الاهتزازية == Multi-Plane Balancing of Rotating Machines Using Vibration Response Measurement

Author name: يحيى محمد امين
Supervisor name: Jaafar K. Ali
General topic: Mechanical Engineering
Specific topic: Mechanical Engineering
Degree: Doctorate
University: University Of Basrah - College Of Engineering - Department Of Mechanical Engineering
Language: English
Key words:
  • Chapter One: Introduction
  • Introduction
  • Advantages of Balancing
  • Rotor Vibration Forms
  • Causes of Unbalance
  • Types of Unbalance
  • Rotor Balancing Methods
  • Mathematical Model
  • Model Based Balancing (MBB)
  • Experimental Modal Analysis (EMA)
  • Digital Signal Processing (DSP)
  • Time and Frequency Domain
  • Fast Fourier Transform (FFT)
  • Thesis objectives
  • Thesis structure
  • Chapter Two: Literature Review
  • Introduction
  • Influence Coefficient Method
  • Modal Balancing Methods
  • Balancing Without Trial Runs
  • Conclusions
  • Chapter Three: Finite Element Model
  • Introduction
  • Coordinate System
  • Rotor Components
  • Disk elements
  • Shaft elements
  • Euler-Bernoulli Beam Theory
  • Shear and rotary inertia effects
  • The 8-DOF Shaft Elements model
  • Gyroscopic effects
  • Couplings
  • Bearings
  • Rolling-Element Bearings Hydrodynamic Bearings
  • Flexible Support
  • Modeling a Whole Rotor
  • Chapter Four: Modal Analysis
  • Introduction
  • Updating of FE model
  • Modal Testing Method
  • Mathematical Models
  • Theoretical Basis of Modal Analysis
  • Single Degree of Freedom System SDOF
  • Graphical Representation of FRF
  • Multi-Degree-of-Freedom System (MDOF)
  • Revisiting SDOF
  • Frequency Response Function Measurement
  • FRF Estimation
  • SISO-FRF Estimation
  • Coherence function
  • Excitation Techniques
  • Extracting Modal Parameters
  • One Column or One Row
  • Extracting Modal Parameters from FRF Data-SDOF
  • methods
  • Peak-picking
  • Circle-fit
  • Least Squares Curve Fitting Using SDOF Model
  • Extracting Modal Data from FRF Data-MDOF method
  • Mode Shape Extraction from Modal Constants
  • Modal Testing of Rotating Structures
  • Chapter Five: Digital Signal Processing
  • Introduction
  • Time and Frequency Domains
  • Signal Digitization
  • Sampling
  • Quantization
  • Aliasing
  • Leakage
  • Windowing
  • Averaging
  • Chapter summery
  • Chapter Six: Sensors calibration and EMA verification
  • Introduction
  • Calibration of transducers
  • Calibration of Accelerometer
  • Calibration of Force Transducer Case study-I: Circular cross-sectional shaft
  • Analytical Modal Analysis
  • Numerical Modal Analysis
  • Experimental Modal Analysis
  • Available Excitation Techniques
  • Results and Comparison
  • Effects of DSP parameters on FRF
  • Effect of Windows
  • Effect of sample time
  • Effect of Excitation Techniques
  • Reciprocity condition
  • Case study-II: Shaft with two disks
  • Chapter summary
  • Chapter Seven: Model-Based Rotor Balancing
  • Introduction
  • Model Based Balancing (MBB)
  • Balancing Test Rig
  • The rotor to be balanced
  • Performing EMA on the rotor
  • FEA Based Model
  • Comparison of the Resulting Modal Parameters
  • Balancing Case Studies
  • Case-I: Two measuring planes and two balancing planes
  • Case-II: Two measuring planes and three balancing planes Residue-Based Model Balancing
  • Essential arrangements before EMA
  • Some issues when performing EMA
  • EMA results
  • Balancing Results
  • Discussion of results
  • Discussion of Results of Tables (7-4) and (7-5)
  • Discussion of Results of Tables (7-6)
  • Chapter summery
First pages:

دراسة اداء انظمة التبريد ذي القنوات المايكروية باستخدام قنوات متغيرة المقطع العرضي وترتيبات مختلفة للقنوات ولاتجاه جريان المائع == Performance study of Microchannel cooling system using variable cross section channels with different arrangements and fluid flow directions

Author name: صاحب شهاب احمد اسحاق الدليمي
Supervisor name: Abdul Muhsin Abood Rageb
General topic: Mechanical Engineering
Specific topic: Mechanical Engineering
Degree: Doctorate
University: University Of Basrah - College Of Engineering - Department Of Mechanical Engineering
Language: English
University location: Basrah
First pages:

تحسين مقاومة الخدش لمادة البولي مثيل ميثا اكريليت بالتقوية بجسيمات ثاني اوكسيد السيليكا النانوية == Improvement of Scratch Resistance of PMMA by Reinforcing with Nano SiO2 Particles

Author name: مشتاق عبد الكريم حسين البحراني
Supervisor name: Abdul Kareem F. Hassan | Najim Abdul Ameer Saad
General topic: Mechanical Engineering
Specific topic: Applied Mechanics
Degree: Doctorate
University: University Of Basrah - College Of Engineering - Department Of Mechanical Engineering
Language: English
University location: Basrah
First pages:

دراسة تجريبية ونظرية لمجمع ذو انبوب حراري باستخدام مواد متغيرة الطور == EXPERIMENTAL AND THEORETICAL INVESTIGATION OF HEAT PIPE COLLECTOR USING PHASE CHANGE MATERIALS PCM

Author name: رائد سعد عودة الحارس
Supervisor name: Saleh E. Najim | Jalal M. Jalil
General topic: Mechanical Engineering
Specific topic: Mechanical Engineering
Degree: Doctorate
University: University Of Basrah - College Of Engineering - Department Of Mechanical Engineering
Language: English
University location: Basrah
First pages:

دراسة نظرية وعملية لتحسين انتقال الحرارة من اسطوانة مسخنة باستخدام مولد الدوامات == Theoretical and Experimental Study for Enhancement of Heat Transfer from Heated Cylinder with Vortex Generator

Author name: غسان فاضل محمد حسين سميسم
Supervisor name: Abdul Muhsin A. Rageb
General topic: Mechanical Engineering
Specific topic: Thermal Power
Degree: Doctorate
University: University Of Basrah - College Of Engineering - Department Of Mechanical Engineering
Language: English
University location: Basrah
First pages:

دراسة لمنظومة تعليق فعال لربع سيارة قابلة للتكيف مع ظروف الطريق == A Study of a Quarter-Car Active Suspension System Adaptable to Road Conditions

Author name: محمود شاكر محمود
Supervisor name: Haider M. Mohammad
General topic: Mechanical Engineering
Specific topic: Mechanical Engineering
Degree: Doctorate
University: University Of Basrah - College Of Engineering - Department Of Mechanical Engineering
Language: English
University location: Basrah
First pages:

الجريان وانتقال الحرارة لموائع غير نيوتونية في فجوة شبه منحرف مفتوحة مع التداخل بين الصلد والسائل == FLOW AND HEAT TRANSFER OF NON-NEWTONIAN FLUIDS IN OPEN TRAPEZODAL CAVITY WITH FLUIDSTRUCTURE INTERACTION

Author name: دنى طارق ياسين العيداني
Supervisor name: Muneer A. Ismael
General topic: Mechanical Engineering
Specific topic: Mechanical Engineering
Degree: Doctorate
University: University Of Basrah - College Of Engineering - Department Of Mechanical Engineering
Language: English
University location: Basrah
First pages:

التنبؤ متعدد المتحسسات لاعطال المكائن الدوارة اثناء التشغيل باستخدام طرق ذكية == Online Multi Sensing and Faults Prognosis of Rotating Machinery Using Intelligent Approaches

Author name: عبد البصير شري باهض
Supervisor name: Abduladhem A. Ali | Mujtuba A. Almudhaffar
General topic: Mechanical Engineering
Specific topic: Applied Mechanics
Degree: Doctorate
University: University Of Basrah - College Of Engineering - Department Of Mechanical Engineering
Language: English
University location: Basrah
First pages:

دراسة عددية وتجريبية للمبادل الحراري ذي الانابيب الحرارية في منظومات التكييف للمناطق ذات الطقس الحار المشبع بالرطوبة == EXPERIMENTAL AND NUMERICAL INVESTIGATION OF THERMOSYPHON HEAT EXCHANGERS IN SUBTROPICAL HVAC SYSTEMS

Author name: عادل عبد عزيز عيدان الخفاجي
Supervisor name: Saleh E. Najim | Jalal M. Jalil
General topic: Mechanical Engineering
Specific topic: Thermal Power
Degree: Doctorate
University: University Of Basrah - College Of Engineering - Department Of Mechanical Engineering
Language: English
University location: Basrah
First pages:

Crack Propagation in Plane Stress Problems by Using Experimental and Extended Finite Element Method (XFEM)

Author name: HASSANEIN IBRAHEEM KHALAF
Supervisor name: Ameen Ahmeed Nssar
General topic: Mechanical Engineering
Specific topic: Applied Mechanics
Degree: Doctorate
University: University Of Basrah - College Of Engineering - Department Of Mechanical Engineering
Language: English
University location: Basrah
First pages:

دراسة نظرية وعملية لاستخدام المبادل الحراري المدفون تحت الارض والمدخنة الشمسية للتبريد في مدينة البصرة == THEORETICAL AND EXPERIMENTAL STUDY OF USING EARTH TUBE HEAT EXCHANGER AND SOLAR CHIMNEY FOR COOLING IN BASRAH CITY

Author name: علاء هليجي محمد
Supervisor name: Salman H. Hammadi
General topic: Mechanical Engineering
Specific topic: Thermal Power
Degree: Doctorate
University: University Of Basrah - College Of Engineering - Department Of Mechanical Engineering
Language: English
University location: Basrah
First pages:

موازنة المحاورة المرنة المتعددة المستويات تجريبيا باستعمال طريقة العوامل المؤثرة == EXPERIMENTAL MULTI-PLANE FLEXIBLE ROTOR BALANCING BASED ON INFLUENCE COEFFICIENT APPROACH

Author name: احمد قاسم كاظم
Supervisor name: Jaafar Khalaf Ali | Abdulbaki Khalaf Ali
General topic: Mechanical Engineering
Specific topic: Applied Mechanics
Degree: Doctorate
University: University Of Basrah - College Of Engineering - Department Of Mechanical Engineering
Language: English
University location: Basrah
First pages:

نظام التحكم لنظام التعليق الهوائي للمركبات الصغيرة باستخدام المسيطرات من نوع (PID & FUZZY) == Air Suspension Control System for Passenger Vehicles Using PID and Fuzzy Controllers

Author name: حيدر جبار عبد
Supervisor name: Ameen Ahmed Nassar
General topic: Mechanical Engineering
Specific topic: Applied Mechanics
Degree: Doctorate
University: University Of Basrah - College Of Engineering - Department Of Mechanical Engineering
Language: English
University location: Basrah
First pages:

دراسة عملية ونظرية لاداء المقطر الشمسي الانبوبي في العراق == EXPERIMENTAL AND THEORETICAL STUDY OF PERFORMANCE OF TUBULAR SOLAR STILL IN IRAQ

Author name: حسين علي جبار
Supervisor name: Salman H. Hammadi | Dhafer M. Hachim
General topic: Mechanical Engineering
Specific topic: Thermal Power
Degree: Doctorate
University: University Of Basrah - College Of Engineering - Department Of Mechanical Engineering
Language: English
University location: Basrah
First pages:

التحقيق التجريبي والعددي للحمل الحراري المختلط من منظومة الزعانف في قناة مستطيلة افقية ومائلة == Experimental and Numerical Investigation of Mixed Convection from a Fin Array in a Horizontal and Inclined Rectangular Duct

Author name: سناء مهدي شرامة
Supervisor name: Falah A. Abood
General topic: Mechanical Engineering
Specific topic: Thermal Power
Degree: Doctorate
University: University Of Basrah - College Of Engineering - Department Of Mechanical Engineering
Language: English
University location: Basrah
First pages:

دراسة تاثير التشكيل على البارد والتخمير على الخواص الميكانيكية الرئيسية ومعدل التاكل لسبائك النحاس نيكل == Study the Effect of Cold Working and Annealing on the Main Mechanical Properties and Corrosion Rate for Copper Nickel Alloys

Author name: عاطف نعمة جراد
Supervisor name: Ameen A. Nassar
General topic: Mechanical Engineering
Specific topic: Applied Mechanics
Degree: Doctorate
University: University Of Basrah - College Of Engineering - Department Of Mechanical Engineering
Language: English
University location: Basrah
First pages:

دراسة نظریة لتبخر قطرات مائع بالتماس المباشر في مائع غیر امتزاجي == THEORETICAL STUDY OF DIRECT CONTACT EVAPORATION OF LIQUID DROPS IN AN IMMISCIBLE LIQUID

Author name: عمار علي عجيمي
Supervisor name: Abdul-Muhsin A. Rageb
General topic: Mechanical Engineering
Specific topic: Mechanical Engineering
Degree: Doctorate
University: University Of Basrah - College Of Engineering - Department Of Mechanical Engineering
Language: English
University location: Basrah
First pages:

التمثيل النظري والامثل لظروف مفاعل التهذيب البخاري الاولي == SIMULATION AND OPTIMIZATION CONDITIONS OF PRIMARY STEAM REFORMING PLANT

Author name: رند عبد الستار عبد
General topic: Mechanical Engineering
Specific topic: Mechanical Engineering
Degree: Doctorate
University: University Of Basrah - College Of Engineering - Department Of Mechanical Engineering
Language: English
University location: Basrah
First pages:

دراسة عددية وتجريبية لتعزيز الجريان وانتقال الحرارة في انبوب حراري اسطواني باستخدام المائع الدقيق == NUMERICAL AND EXPERIMENTAL STUDY OF FLOW AND HEAT TRANSFER ENHANCEMENT IN A CYLINDRICAL HEAT PIPE USING NANOFLUID

Author name: حسنين غني حميد
General topic: Mechanical Engineering
Specific topic: Thermal Power
Degree: Doctorate
University: University Of Basrah - College Of Engineering - Department Of Mechanical Engineering
Language: English
University location: Basrah
First pages:

دراسة عوامل لحام المعدني المحجب بالغاز لصفائح ملحومة من الصلب ASTM A 283 باستخدام الاجراءات التجريبية والشبكات العصبية والخوارزمية الوراثية == Parametric Study of Gas Metal Arc Welding for ASTM A283 Steel Weldments Using Experimental, Neural and Genetic Procedures

Author name: رعد جمال جاسم
Supervisor name: A K F Hassan
General topic: Mechanical Engineering
Specific topic: Mechanical Engineering
Degree: Doctorate
University: University Of Basrah - College Of Engineering - Department Of Mechanical Engineering
Language: English
University location: Basrah
First pages:

النمذجة والتعويض الرياضي للاخطاء التراكمية التشغيلية في ماكنة تحكم رقمي (CNC) == Mathematical Modeling and Compensation of Accumulative Machining Errors in a CNC Machine

Author name: حسين عقيل جبار
Supervisor name: Abdul Kareem F Hassan
General topic: Mechanical Engineering
Specific topic: Mechanical Engineering
Degree: Doctorate
University: University Of Basrah - College Of Engineering - Department Of Mechanical Engineering
Language: English
University location: Basrah
First pages:

Characterization Of Tin - Bronze Self Lubricating Composite Bearings

Author name: خلود ابراهيم داود
General topic: Mechanical Engineering
Specific topic: Mechanical Engineering
Degree: Doctorate
University: University Of Basrah - College Of Engineering - Department Of Mechanical Engineering
University location: Basrah