Information
Code | ME351 |
Name | Machine Elements I |
Term | 2022-2023 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 | Student become equipped with the basic knowledge of math, science and engineering | 4 |
PLO02 | Bilgi - Kuramsal, Olgusal | Students gain a command of basic concepts, theories and principles in mechanical engineering | 5 |
PLO03 | Bilgi - Kuramsal, Olgusal | Students are able to design and carry out experiments in the basic fields of mechanical engineering, and interpret the results and the data obtained from the experiments | 1 |
PLO04 | Bilgi - Kuramsal, Olgusal | Students become equipped with a variety of skills and knowledge regarding engineering techniques | 4 |
PLO05 | Bilgi - Kuramsal, Olgusal | Students are able to design a system, component or process in order to meet the needs of various engineering problems within technical, economic, environmental, manufacturability, and sustainability limits. | 3 |
PLO06 | Bilgi - Kuramsal, Olgusal | Students independently review and learn the applications in an enterprise, make a critical assessment of the problems faced with, formulate problems and propose solutions by selecting the proper technique | |
PLO07 | Bilgi - Kuramsal, Olgusal | Students take initiative in identification, design, development and use of a product or production process. | 4 |
PLO08 | Beceriler - Bilişsel, Uygulamalı | Students become aware of the necessity of lifelong learning and continuously self-renew | 2 |
PLO09 | Yetkinlikler - Bağımsız Çalışabilme ve Sorumluluk Alabilme Yetkinliği | Students use English effectively for technical or non-technical topics orally or in wirtten form. | 5 |
PLO10 | Yetkinlikler - Bağımsız Çalışabilme ve Sorumluluk Alabilme Yetkinliği | Students become effective in using computer, computer-aided drafting, design, analysis, and presentation | |
PLO11 | Yetkinlikler - Bağımsız Çalışabilme ve Sorumluluk Alabilme Yetkinliği | Students have good communicatino skills with a tendency to work in teams, and are able to work effectively as a member of an interdisciplinary team | |
PLO12 | Yetkinlikler - Öğrenme Yetkinliği | Students become aware of the technical and ethical responsibilities, as well as being inquisitive and innovative | 2 |
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 |