2021 Mechanism and Control for Ultra-precision Motion

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Academic unit or major
Graduate major in Mechanical Engineering
Instructor(s)
Shinshi Tadahiko 
Course component(s)
Lecture    (ZOOM)
Day/Period(Room No.)
Mon1-2()  
Group
-
Course number
MEC.J432
Credits
1
Academic year
2021
Offered quarter
4Q
Syllabus updated
2021/9/13
Lecture notes updated
-
Language used
English
Access Index

Course description and aims

Students in this course learn about the basic components of machinery for which precision motion is important, such as ultraprecision machine tools, exposure devices, 3D measuring machines, etc., the type and properties of components selected for the basic configuration, design techniques, as well as precision measuring technology and control methods that are needed for motion systems that use that machinery. The instructor also introduced trends in their use.
High-precision movement is a basic and important capability which can be implemented by understanding real machine problems in greater detail and solving them. The purpose of this course is to acquire basic knowledge and skills for this task.

Student learning outcomes

Students will acquire the following skills by taking this course.
1) Learn basic knowledge of machines for precision and ultra-precision motions, and gain an understanding of precision deterioration factors.
2) Understand the basic principles of sensors for precision / ultra-precision motion and the properties of control methods, and be able to make appropriate selections.
3)Learn the basics of the controller design method for positioning mechanisms using classical control theory.

Keywords

Motion error, precision mechanism, ultra-precision mechanism, mechanism design, guide, bearing, power transmission, actuator, measurement, sensor, control, ultra-precision machine tool, exposure tool, coordinate measuring machine

Competencies that will be developed

Specialist skills Intercultural skills Communication skills Critical thinking skills Practical and/or problem-solving skills
Understanding of fine movement / fine movement positioning system and its control used in information equipment, industrial machinery, and machine tools

Class flow

Understanding the basics of classical control is essential. Homework is assigned almost every time.

Course schedule/Required learning

  Course schedule Required learning
Class 1 Introduction Understand features of precision/ultra-precision motion systems, basic technical terms and fundamental principle for the systems
Class 2 Design of precision/ultra-precision mechanisms with a short working range Explain the suitable components and their combination for the mechanisms with a short working range and their features. The dynamic model of typical fine movement mechanism is also explained.
Class 3 Design of precision/ultra-precision mechanisms with a long working range Explain the suitable components and their combination for the mechanisms with a long working range and their features. The dynamic model of typical long range movement mechanism is also explained.
Class 4 Measurement techniques for precision/ultra-precision motion systems Understand the kinds, the principle and the features of sensors for the motion systems
Class 5 Control techniques for precision/ultra-precision motion systems 1 Understand the kinds and the features of Understand the control methods for the motion systems performance and structure. I will also explain and submit a task on the control system design method using MATLAB / SIMULINK.
Class 6 Control techniques for precision/ultra-precision motion systems 2 Understand the kinds and the features of Understand the control methods for the motion systems performance and structure. I will also explain and submit a task on the control system design method using MATLAB / SIMULINK.
Class 7 Visit lab or technology exhibition related to precision engineering Visit the laboratory related to the precision mechanism to observe and discuss the actual machine, or visit the exhibition of the precision mechanism to decide the theme and carry out the survey. Subject to change depending on corona infection status.

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)

Not specified.

Reference books, course materials, etc.

A. H. Slocum, Precision Machine Design, Society of Manufacturing, ISBN-13: 978-0872634923
David A. Dornfeld, Precision Manufacturing, Springer, ISBN-13: 978-0387324678
V. C. Venkatesh et al, Precision Engineering, McGraw-Hill Professional, ISBN-13: 978-0071548274
T. Yamaguchi et al, Nanoscale Servo Control, TDU Press, ISBN-13: 978-4501113506 (Japanese)
A. Matsubara,Design and Control of Precision Positioning and Feed Drive Systems, Morikita Publishing, ISBN-13: 978-4627919815 (Japanese)
J. Otsuka,Nanotechnology and Ultra-precision Positioning Technology,Kogyo Chosakai Publishing,ISBN-13: 978-4769321750 (Japanese)
R. Suzuki et al, Instrument Engineering, Shoko-do, ISBN-13: 978-4785690656 (Japanese)

Assessment criteria and methods

Provide 4-5 homework. Evaluate by the quality of the reports. Students who can take a positive response to questions during the lecture will be given points.

Related courses

  • MEC.J311 : Fundamentals of Precision Machinery
  • MEC.I312 : Modeling and Control Theory
  • MEC.J431 : Ultra-precision Measurement

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

1) There are no special conditions for taking courses, but it is desirable to take related courses. In particular, knowledge of classical control is indispensable, and students who do not understand the Laplace transform or Bode plot should not take this course.
2) Many undergraduate students wish to take the course, but most students find it difficult to submit reports due to the undergraduate project. Consider the declaration carefully according to the schedule of your project.

Other

Lecture schedules and methods may change depending on the corona infection status.
Students who are expecting to easily earn a credit through a simple survey should not take this course because you will also design the control system of the mechanism using MATLAB / SIMULINK as your homework.

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