All machines, devices and structures with moving parts have definitely proper mechanisms. This course deals with the systems
and functions of major machine elements (gear wheels, cams and links, etc.). Moreover, it covers the motions produced by combining
machine elements and the analytical methods for those motions. This course is carried out using video movies of machine elements
and exercises arranged for the class contents effectively.
The first aim of this course is to develop the abilities for analyzing the machine motions produced by machine elements and
for designing the mechanisms for the provided motions. The second aim is to acquire the basic drafting skills for major machine
elements.
- To understand the basic systems and functions of machine elements.
- To evaluate the parameters for the motions of mechanisms.
- To evaluate the parameters for the performances of machine elements.
- To design the mechanisms or machine elements for the provided motions.
| Class schedule | HW assignments (Including preparation and review of the class.) | Amount of Time Required | |
|---|---|---|---|
| 1. | Lecture guidance: ･What is machine? ･Introduction of mechanisms ･Machine element, Pair and Degree of freedom |
Preparation of chapter 1: 1.1 and 1.2/1.2.1 – 1.2.4 in text. | 60minutes |
| 2. | Machine and mechanism (1): ･Machine element and various pairs ･Degree of freedom for pair |
Preparation of chapter 1: 1.2/1.2.5 and 1.3/1.3.1 in text. | 60minutes |
| Answer the practice problems and prepare the report. | 110minutes | ||
| 3. | Machine and mechanism (2): ･Link and chain ･Degree of freedom for chain |
Preparation of chapter 7: 7.1 and 7.2/7.2.1 in text. | 60minutes |
| Answer the practice problems and prepare the report. | 110minutes | ||
| 4. | Machine and mechanism (3): ･Types of motion (translational motion and rotational motion) ･Transfer of motion ･Instantaneous center of rotation (Kennedy's theorem) |
Preparation of chapter 1: 1.3/1.3.2, 1.3.3 and examples in text. | 60minutes |
| Answer the practice problems and prepare the report. | 110minutes | ||
| 5. | Machine and mechanism (4): ･Instantaneous center of rotation for link ･Velocity on mechanism |
Preparation of chapter 1: 1.3/1.3.4-1, 1.3.4-2 and examples in text. | 60minutes |
| Answer the practice problems and prepare the report. | 110minutes | ||
| 6. | Linkage: ･Types of quadric crank mechanism ･Slider crank mechanism |
Preparation of chapter 7: 7.2/7.2.2 – 7.3, 7.5 and examples in text. | 60minutes |
| Answer the practice problems and prepare the report. | 110minutes | ||
| 7. | Midterm examination: Examination covers from class 1 to class 6. ･Comments and explanations for examination |
Review from class 1 to class 6. | 300minutes |
| 8. | Screw (Bolt): ･Principle of Screw ･Types of screws (Standard screw) |
Preparation of chapter 4: 4.1, 4.2/4.2.1, 4.3 and examples in text. | 60minutes |
| Answer the practice problems and prepare the report. | 110minutes | ||
| 9. | Cam mechanism: ･Types of cam and those application ･Cam diagram ･Design of cam |
Preparation of chapter 3: 3.2, 3.2, 3.3 and examples in text. | 60minutes |
| Answer the practice problems and prepare the drawing. | 110minutes | ||
| 10. | Exercise on mechine element： ･Design of machine element ･Drafting of machine element |
Review of class 8 and class 9. | 60minutes |
| Design and drawing of machine element. | 130minutes | ||
| 11. | Gearing device(1): ･Name of each part of gear ･Types of gear ･Pitch and module |
Preparation of chapter 5: 5.1 – 5.3, 5.4/5.4.1, 5.4.2, 5.7 and examples in text. | 60minutes |
| Answer the practice problems and prepare the report. | 110minutes | ||
| 12. | Gearing device (2): ･Train of gears ･Gear shifting device ･Velocity ratio ･Torque ratio ･Transmitted power |
Preparation of chapter 5: 5.8/5.8.1, 5.8.2, chapter 6: 6.1-3 and examples in text. | 60minutes |
| Answer the practice problems and prepare the report. | 110minutes | ||
| 13. | Comprehensive Exercise: ･Exercise from class 1 to class 12 |
Review of the contents and practice problems from class 1 to class 12. | 60minutes |
| Answer the practice problems. | 110minutes | ||
| 14. | Final examination: Examination covers everything in this course. ･Comments and explanations for examination |
Review from class 1 to class 13. | 400minutes |
| Total. | - | - | 2650minutes |
| Midterm examination | Final examination | Reports | Drawings | Total. | |
|---|---|---|---|---|---|
| 1. | 10% | 5% | 7% | 2% | 24% |
| 2. | 10% | 5% | 8% | 3% | 26% |
| 3. | 5% | 10% | 7% | 2% | 24% |
| 4. | 5% | 10% | 8% | 3% | 26% |
| Total. | 30% | 30% | 30% | 10% | - |
Students will be comprehensively evaluated based on midterm examination (30%), final examination (30%), reports during classes
(30%) and level of drawing (10%).
Students can pass getting 60 points out of 100 points.
Students can pass getting 60 points out of 100 points.
Handouts and Text: T. Inami, “Daredemowakaru kaiseki to enshu, Kikougaku no kiso”, Daigo Ltd.
References: S. Inada and H. Morishima, “Daigakukatei Kikougaku”, Ohmsha Ltd. and Y. Hagiuwara, “Yokuwakaru Kikougaku”, Ohmsha Ltd.
References: S. Inada and H. Morishima, “Daigakukatei Kikougaku”, Ohmsha Ltd. and Y. Hagiuwara, “Yokuwakaru Kikougaku”, Ohmsha Ltd.
Students prepare graph papers (A4), drawing set, set-square and scientific electronic calculator.
- Course that cultivates an ability for utilizing knowledge
- Course that cultivates a basic problem-solving skills
- Course that cultivates a basic self-management skills
| Work experience | Work experience and relevance to the course content if applicatable |
|---|---|
| Applicatable | Based on the experience of estimate and detail design, I introduce the practical information on the drawing and design methods of various mechanical elements as necessary. |
Last modified : Mon Aug 31 04:06:14 JST 2020