ME307 MACHINE ELEMENTS I
| Course Code: | 5690307 |
| METU Credit (Theoretical-Laboratory hours/week): | 3 (3.00 - 0.00) |
| ECTS Credit: | 5.0 |
| Department: | Mechanical Engineering |
| Language of Instruction: | English |
| Level of Study: | Undergraduate |
| Course Coordinator: | Assoc.Prof.Dr. ERGİN TÖNÜK |
| Offered Semester: | Fall Semesters. |
Course Objectives
1: At the end of this course, students will be able to formulate and analyze stresses and strains in machine elements and structures in 3-D subjected to various loads.
2: At the end of this course, students will be able to do tolerance analysis and specify appropriate tolerances for machine design applications.
3: At the end of this course, students will be able to apply multidimensional static failure criteria in the analysis and design of mechanical components..
4: At the end of this course, students will be able to apply multidimensional fatigue failure criteria in the analysis and design of mechanical components.
5: At the end of this course, students will be able to analyze and design structural joints.
6: At the end of this course, students will be able to analyze and design power transmission shafts carrying various elements with geometrical features.
7: At the end of this course, students will be able to analyze and design mechanical springs.
8: At the end of this course, students will be acquainted with standards, safety, reliability, importance of dimensional parameters and manufacturing aspects in mechanical design.
9: At the end of this course, students will be able to improve their technical report writing skills.
Course Content
Stress analysis in 3-D. Tolerances and allowances. Static design criteria; stress concentration, factor of safety, theories of failure for ductile and brittle materials. Fatigue design criteria under mean and combined stresses. Design of shafts. Design of permanent joints; riveted joints, welded joints. Design of detachable joints, bolted joints, power screws, keys, splines, pins, rings. Design of springs.
Course Learning Outcomes
1:
- Ability to define the most critically stressed point in a machine component.
- Ability to analyze a 3-D stress state.
- Ability to analyze strains and deflections.
2:
- Ability to understand and to interpret tolerance on a dimension.
- Acquaintance with ISO system of tolerances.
- Ability to specify an appropriate tolerance on machine components.
- Ability to specify a fit for mating parts considering functional requirements.
3:
- Knowledge of various multidimensional static failure criteria for different materials.
- Ability to apply multidimensional static failure criteria in the design and analysis of machine components.
- Ability to analyze and design components with non-uniform cross sections.
4:
- Knowledge of fatigue failure and load-life relation.
- Knowledge of various multidimensional fatigue failure criteria.
- Ability to apply multidimensional fatigue failure criteria in the design and analysis of machine components under various loading conditions.
5:
- Acquaintance with the terminology, and types of permanent and detachable joints.
- Ability to design and analyze permanent joints (riveted, welded, etc.) under concentric and eccentric loading conditions.
- Ability to design and analyze detachable joints (bolts, keys, pins, etc.) under various loading conditions.
- Ability to design and analyze power screws.
6:
- Acquaintance with different types of shafts.
- Ability to design and analyze shafts with different geometrical features under various loading conditions.
- Ability to calculate critical speed of shafts and make the design decisions accordingly.
7:
- Acquaintance with spring terminology and different types of springs.
- Ability to design and analyze coil springs (compression, tension, torsion) under various loads.
8:
- Knowledge of standards for machine elements.
- Understanding of safety and reliability concepts in the design of machine elements.
- Ability to minimize the characteristic dimension of a machine element.
- An understanding of the influence of manufacturing processes in the design of machine elements.
9:
- Ability to justify a design project in a formal report.
- Ability to perform and present design calculations in a neat and organized manner.
- Ability to present the outcomes of the design in the form of engineering drawings.
Program Outcomes Matrix
| Contribution | |||||
| # | Program Outcomes | No | Yes | ||
| 1 | Ability to establish the relationship between mathematics, basic sciences and engineering sciences with engineering applications. | ✔ | |||
| 2 | Ability to find and interpret information | ✔ | |||
| 3 | Ability to follow the literature and technology related to his/her topic of interest | ✔ | |||
| 4 | Recognition of the need to keep oneself up to date in his/her profession | ✔ | |||
| 5 | Possession of written and oral communication skills | ✔ | |||
| 6 | Ability to conduct team work (within the discipline, inter-disciplinary, multi-disciplinary) | ✔ | |||
| 7 | Ability to produce original solutions | ✔ | |||
| 8 | Use of scientific methodology in approaching and producing solutions to engineering problems and needs | ✔ | |||
| 9 | Openness to all that is new | ✔ | |||
| 10 | Ability to conduct experiments | ✔ | |||
| 11 | Ability to do engineering design | ✔ | |||
| 12 | Awareness of engineering ethics, knowledge and adoption of its fundamental elements | ✔ | |||
| 13 | Ability to take societal, environmental and economical considerations into account in professional activities | ✔ | |||
| 14 | Possession of pioneering and leadership characteristics in areas related to the profession | ✔ | |||