TÜRKÇE
ENGLISH
Information
| Code | ME351 |
| Name | Machine Elements I |
| Term | 2024-2025 Academic Year |
| Semester | 5. Semester |
| Duration (T+A) | 3-0 (T-A) (17 Week) |
| ECTS | 5 ECTS |
| National Credit | 3 National Credit |
| Teaching Language | İngilizce |
| Level | Lisans Dersi |
| Type | Normal |
| Mode of study | Yüz Yüze Öğretim |
| Catalog Information Coordinator | Prof. Dr. NECDET GEREN |
| Course Instructor |
Prof. Dr. NECDET GEREN
(A Group)
(Ins. in Charge)
|
Course Goal / Objective
The main aim of this lecture is to teach the basics of machine design, including the design process, failure prevention under static and variable loading.
Course Content
1-Introduction to Mechanical Engineering Design, 2-Materials, 3 -Load and Stress analysis 4 -Deflection and Stiffness, 5- Failures resulting from static loading, 6- Fatigue Failures resulting from variable loading, 7- Shafts and Shaft Components, 8- Screws, Fasteners and the Design of Non permanent Joints, 9- Welding, Bonding, and the Design of permanent joints, 10- Mechanical springs
Course Precondition
non
Resources
Shigley's Mechanical Engineering Design, version 8/e onwards (versions 9,10/e) Richard G. Budynas, J. Keith Nisbett
Notes
Fund. Of. Mach. Elem. B.J. HAMROCK Engineering Design, George E. Dieter, Mc-Graw Hill
Course Learning Outcomes
| Order | Course Learning Outcomes |
|---|---|
| LO01 | Knows machine design process and its steps. |
| LO02 | Applies factor of safety and Knows safety philosophy and applies it in design. |
| LO03 | Determines the stresses and defeclections on machine members subjected to single, 3D or combined loading. |
| LO04 | Knows static and fatigue failure theories and applies these to design machine members to prevent failures resulting from static or variable loading. |
| LO05 | Designs shafts and shaft components considering both deflection and stresses. Determines limits and fits for mating parts. |
| LO06 | Designs power screws for various needs. |
| LO07 | Selects suitable fasteners for all types of connections. |
| LO08 | Designs nonpermanent joints subjected to static and variable loading with preload. |
| LO09 | Selects the suitable connections for permanent joints. |
| LO10 | Designs and analysis permanent joints made using arc and resisting welding, bonding etc. |
Relation with Program Learning Outcome
| Order | Type | Program Learning Outcomes | Level |
|---|---|---|---|
| PLO01 | Bilgi - Kuramsal, Olgusal | Adequate knowledge in mathematics, science, and topics specific to mechanical engineering; the ability to use theoretical and applied knowledge in these fields to solve complex engineering problems. | 2 |
| PLO02 | Bilgi - Kuramsal, Olgusal | The ability to identify, formulate, and solve complex engineering problems in the fields of mechanical engineering and technology; the ability to select and apply appropriate analysis and modeling methods for this purpose. | 4 |
| PLO03 | Bilgi - Kuramsal, Olgusal | The ability to design a complex system, process, device, or product under realistic constraints and conditions to meet specific requirements in mechanical engineering; the ability to apply modern design methods for this purpose. | 3 |
| PLO04 | Bilgi - Kuramsal, Olgusal | The ability to select and use modern techniques and tools necessary for analyzing and solving complex problems encountered in mechanical engineering applications; the ability to effectively use information technologies. | 3 |
| PLO05 | Bilgi - Kuramsal, Olgusal | The ability to design experiments, conduct experiments, collect data, analyze and interpret the results for the investigation of complex engineering problems or research topics specific to mechanical engineering. | |
| PLO06 | Bilgi - Kuramsal, Olgusal | The ability to work effectively in intra-disciplinary (mechanical engineering) and multidisciplinary teams; the ability to work individually. | |
| PLO07 | Bilgi - Kuramsal, Olgusal | The ability to communicate effectively both orally and in writing; proficiency in at least one foreign language; the ability to write effective reports in mechanical engineering, understand written reports, prepare design and production reports, deliver effective presentations, and give and receive clear instructions. | |
| PLO08 | Beceriler - Bilişsel, Uygulamalı | Awareness of the necessity of lifelong learning; the ability to access information, follow developments in science and technology, and continuously renew oneself in the field of mechanical engineering. | |
| PLO09 | Yetkinlikler - Bağımsız Çalışabilme ve Sorumluluk Alabilme Yetkinliği | Behaving in accordance with ethical principles, awareness of professional and ethical responsibilities in the field of mechanical engineering, and knowledge about the standards used in engineering practices. | |
| PLO10 | Yetkinlikler - Bağımsız Çalışabilme ve Sorumluluk Alabilme Yetkinliği | Knowledge of business practices such as project management, risk management, and change management in the field of mechanical engineering; awareness of entrepreneurship and innovation; knowledge about sustainable development. | |
| PLO11 | Yetkinlikler - Bağımsız Çalışabilme ve Sorumluluk Alabilme Yetkinliği | Awareness of the universal and societal dimensions of the impacts of mechanical engineering applications on health, environment, and safety, and knowledge about the contemporary issues in the field of mechanical engineering; awareness of the legal consequences of mechanical engineering solutions. |
Week Plan
| Week | Topic | Preparation | Methods |
|---|---|---|---|
| 1 | INTRODUCTION, The meaning of Design, Mechanical Engineering Design, The Phases of Design, | Shigley's book (Referans Book) Chapter 1 | Öğretim Yöntemleri: Anlatım |
| 2 | Design Considerations, Factor of safety, Codes and Standards, Economics, Reliability, Safety and Product Liability, Units, Rules for Use of SI Units | Shigley's book (Referans Book) Chapter 1 | Öğretim Yöntemleri: Anlatım |
| 3 | MATERIALS; LOAD AND STRESS ANALYSIS Determination of Stress Concentration Factors, Stress concentration Charts, stress concentration and static loads | Study Chapters 2, 3, and 4. in Shigley's book (Referans book). Some axamples are gieven as homework. | Öğretim Yöntemleri: Anlatım, Alıştırma ve Uygulama |
| 4 | DESIGN FOR STATIC STRENGTH; Static strength,stress concentration, Failure theories, Maximum normal stress theory, Maximum shear stress theory, Distortion energy theory | Shigley's book (Referans Book) Chapter 5 | Öğretim Yöntemleri: Anlatım, Alıştırma ve Uygulama, Problem Çözme |
| 5 | Coulomb-Mohr theory, Maximum-Normal-stress theory for brittle materials, modification of the Mohr theory, failure of brittle materials, Selection of failure criteria | Shigley's book (Referans Book) Chapter 5 | Öğretim Yöntemleri: Anlatım, Alıştırma ve Uygulama, Problem Çözme |
| 6 | Introduction to Fracture Mechanics, Stress State in a Crack, Critical Stress Intensity Factor, Fracture Toughness Factors, example problem solutions | Shigley's book (Referans Book) Chapter 5, homework | Öğretim Yöntemleri: Anlatım, Alıştırma ve Uygulama, Problem Çözme |
| 7 | DESIGN FOR FATIGUE STRENGTH; Introduction, Approach to fatigue failure in analysis and design, Fatigue llife methods, The endurance limit, | Shigley's book (Referans Book) Chapter 6 homework | Öğretim Yöntemleri: Anlatım, Soru-Cevap, Alıştırma ve Uygulama, Problem Çözme |
| 8 | Mid-Term Exam | Shigley's book (Referans Book) Chapter 6 homework | Ölçme Yöntemleri: Yazılı Sınav |
| 9 | Characterizing fluctuating stresses, fatigue failure criteria for fluctuating stress, Torsional fatiue strength, Stress due to combined loading, Cumulative fatigue damage, Surface fatigue strength | Shigley's book (Referans Book) Chapter 6, homework assigment | Öğretim Yöntemleri: Anlatım, Alıştırma ve Uygulama, Problem Çözme |
| 10 | SHAFT AND SHAFT COMPONENTS; Shaft materials, shaft layout, Shaft design for stress, Deflection considerations,Critical speeds for shafts, Misc. Shaft components, limits and fits | Shigley's book (Referans Book) Chapter 7, homework assigment and the term project | Öğretim Yöntemleri: Anlatım, Alıştırma ve Uygulama, Proje Temelli Öğrenme |
| 11 | MIDTERM EXAM | Repeat the sections including the last chapter, grasp the teories and approaches, solve problems. | Ölçme Yöntemleri: Yazılı Sınav |
| 12 | THE DESIGN OF SCREWS, FASTENERS, AND CONNECTIONS; Thread Standards and Definitions, The Mechanics of Power Screws, Threaded Fasteners, Joints-fasteners stiffness, joints member stiffness, Bolt strength | Shigley's book (Referans Book) Chapter 8, homework assigment | Öğretim Yöntemleri: Anlatım, Alıştırma ve Uygulama, Problem Çözme |
| 13 | Tension joints, Relating bolt torque to bolt tension, statically loaded tension joints with preload, Gasketed joints, Fatigue loading of tension joint | Shigley's book (Referans Book) Chapter 8, homework assigment | Öğretim Yöntemleri: Anlatım, Alıştırma ve Uygulama, Problem Çözme |
| 14 | Bolted and Riveted Joints Loaded in Shear, Example problem solutions, | Shigley's book (Referans Book) Chapter 8, homework assigment | Öğretim Yöntemleri: Anlatım, Alıştırma ve Uygulama, Problem Çözme |
| 15 | WELDED BRAZED AND BONDED JOINTS; Welding, Butt and Fillet welds, Streses in welded joints in Torsion, Streses in welded joints in Bending, The Strength of welded joints, Static and fatigue loading, Resistance welding, Bonded joints | Shigley's book (Referans Book) Chapter 9, Homework assignment | Öğretim Yöntemleri: Anlatım, Alıştırma ve Uygulama, Problem Çözme |
| 16 | Term Exams | Prepare yourself for final exam | Ölçme Yöntemleri: Yazılı Sınav |
| 17 | Term Exams | Prepare yourself for final exam | Ölçme Yöntemleri: Yazılı Sınav |
Student Workload - ECTS
| Works | Number | Time (Hour) | Workload (Hour) |
|---|---|---|---|
| Course Related Works | |||
| Class Time (Exam weeks are excluded) | 14 | 3 | 42 |
| Out of Class Study (Preliminary Work, Practice) | 14 | 3 | 42 |
| Assesment Related Works | |||
| Homeworks, Projects, Others | 0 | 0 | 0 |
| Mid-term Exams (Written, Oral, etc.) | 1 | 12 | 12 |
| Final Exam | 1 | 18 | 18 |
| Total Workload (Hour) | 114 | ||
| Total Workload / 25 (h) | 4,56 | ||
| ECTS | 5 ECTS | ||