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 ･Cam design (Contour of cam) |
Preparation of chapter 3: 3.2, 3.2, 3.3 and examples in text. | 60minutes |
| Answer the practice problems and prepare the report. | 110minutes | ||
| 10. | Exercise of element analysis: ･Design of machine element ･Drawing of machine element |
Review of class 8 and class 9. | 60minutes |
| Draw the machine elements. | 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 ･Transmitted power Wrapping transmission: ･Belt and belt wheel |
Preparation of chapter 5: 5.8/5.8.1, 5.8.2 and examples in text. Preparation of chapter 6: 6.1-3 and examples in text. |
60minutes |
| Answer the practice problems and prepare the report. | 110minutes | ||
| 13. | Exercise of motion analysis： ･Operation of mechanical craft ･Analysis of motion mechanism |
Review of handouts from class 1 to class 12. | 60minutes |
| Prepare the report. | 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%).
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
Last modified : Wed Oct 17 06:22:02 JST 2018