2024 Taguchi Method

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Academic unit or major
Graduate major in Mechanical Engineering
Instructor(s)
Hosokawa Tetsuo 
Class Format
Lecture    (Face-to-face)
Media-enhanced courses
Day/Period(Room No.)
Fri5-6(I1-256(I121))  
Group
-
Course number
MEC.G532
Credits
1
Academic year
2024
Offered quarter
2Q
Syllabus updated
2024/3/22
Lecture notes updated
-
Language used
Japanese
Access Index

Course description and aims

【 Overview 】
In this course, students will learn how to use the taguchi method and its peripheral techniques, as well as the process of technical development, through the textbook and lectures.

【Aim】
The continuous provision of products that exceed customers' expectations is a condition for the survival of a company. The most important management issue for manufacturing companies is to continuously introduce differentiated products with unique technologies to the market. In order to bring to market products that utilize new and unconventional technologies, it is essential to ensure both performance and functional robustness at the technology development stage, which is the upstream of the manufacturing process. This is because ensuring high performance robustness often requires changes in the system structure and the level of many design parameters. Such activities cannot be performed in the product design phase after detailed planning has been determined. By integrating the taguchi method and its peripheral techniques, we aim to achieve both creativity and efficiency, and to be able to continuously provide products that exceed customer expectations. The overall picture of technological development and the techniques used in technological development, with a focus on the Taguchi Method, are required as standard acquisition skills for graduates of engineering graduate schools.

Student learning outcomes

Understand the Taguchi Method's technology development strategy and be able to formulate an evaluation plan for technology based on a two-step design process: quantification of robustness using signal-to-noise ratios and parameter design. Understand the aim of CS-T method (Causarity Search T Method) and R-FTA (Reverse Fault Tree Analyses), which are techniques to devise new system structure and design parameters. Understand the overall picture of technology development and the positioning of the taguchi method and its surrounding techniques.

Course taught by instructors with work experience

Applicable How instructors' work experience benefits the course
A lecturer who is engaged in quality control work using Taguchi methods in a company will give practical lectures from basics to applications of Taguchi methods based on experience at actual production factory.

Keywords

Quality engineering, technology development, interaction, orthogonal table, functional evaluation, CS-T method

Competencies that will be developed

Specialist skills Intercultural skills Communication skills Critical thinking skills Practical and/or problem-solving skills

Class flow

In this lecture, students learn the fundamentals of the Taguchi method, such as design of experiments, robustness evaluation, robust parameter design, and CS-T method, through classroom lectures and exercises.

Course schedule/Required learning

  Course schedule Required learning
Class 1 Manufacturing Issues in Companies and Expectations of the Taguchi Method The Taguchi Method's Technology Development Strategy Understand the contents of one chapter of the textbook.
Class 2 Interaction and orthogonal array Understand the contents of chapter 2 of the textbook.
Class 3 Parameter design Understand the contents of Chapter 3 and Appendices 2 and 3 of the textbook. Report Assignment
Class 4 Approach to robustness evaluation Understand the contents up to section 4.3 of chapter 4 in the textbook. Report Assignment." Report Assignment
Class 5 Sum of squares decomposition and signal to noise ratio Same as above
Class 6 Robust parameter design and technology development using CS-T method Understand the contents of Chapter 4 and Appendix 4 of the textbook
Class 7 Overview of technology development and case studies Lecture review and Q&A Report assignment based on the contents of the textbook

Out-of-Class Study Time (Preparation and Review)

To enhance effective learning, students are encouraged to spend approximately 100 minutes preparing for class and another 100 minutes reviewing class content afterwards (including assignments) for each class.
They should do so by referring to textbooks and other course material.

Textbook(s)

Tetsuo Hosokawa, Shin Taguchi, Akashi Fukuhara, "The Mechanism and Management of Technology Creation (tentative)", Japanese Standards Association

Reference books, course materials, etc.

Tetsuo Hosokawa, "Technology Development Using the Taguchi Method," JUSE Press, Inc.

Assessment criteria and methods

Reports of exersize(100%)

Related courses

  • none
  • none

Prerequisites (i.e., required knowledge, skills, courses, etc.)

none

Other

The class on June 28, 2023 will be cancelled. To compensate for this, the schedule will be moved up and lectures will be given during the make-up period (2 Aug.).

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