Design and DrawingⅣA

Course Information

College	Akashi College	Year	2023
Course Title	Design and DrawingⅣA
Course Code	5425	Course Category	Specialized / Compulsory
Class Format	Practical training	Credits	Academic Credit: 2
Department	Mechanical Engineering	Student Grade	4th
Term	First Semester	Classes per Week	2
Textbook and/or Teaching Materials
Instructor	SHI Fenghui

Course Objectives

(1) Learn about the design process up to machining through the planning, designing, and drawing of a two-stage three-axis gear decelerator, a typical turning machine consisting of various mechanical components such as gears, bearings, and axles.
(2) Can plan and create design calculations for a helical gear decelerator, recognize the importance of design calculation, and creatively plan, design, and draw a structure, space, and dimensions that satisfy performance, to acquire comprehensive machine design skills.
(3) Learn to employ design and drawing methods for mechanical elements, and through repetition by reviewing the material, to independently drive design promotion and to learn how to use design reference materials and reference examples of machine design. Learn a wide range of design ideas including the importance of delivery time, to learn the necessity of and methods for continuous learning.

Rubric

	Ideal Level	Standard Level	Unacceptable Level
Achievement 1	Fully learn about the design process up to machining through the planning, designing, and drawing of a two-stage three-axis gear decelerator, a typical turning machine consisting of various mechanical components such as gears, bearings, and axles.	Learn about the design process up to machining through the planning, designing, and drawing of a two-stage three-axis gear decelerator, a typical turning machine consisting of various mechanical components such as gears, bearings, and axles.	Do not learn about the design process up to machining through the planning, designing, and drawing of a two-stage three-axis gear decelerator, a typical turning machine consisting of various mechanical components such as gears, bearings, and axles.
Achievement 2	Can plan and create design calculations for a helical gear decelerator, recognize the importance of design calculation, and creatively plan, design, and draw a structure, space, and dimensions that satisfy performance, to fully acquire comprehensive machine design skills	Can plan and create design calculations for a helical gear decelerator, recognize the importance of design calculation, and creatively plan, design, and draw a structure, space, and dimensions that satisfy performance, to acquire comprehensive machine design skills.	Cannot plan and create design calculations for a helical gear decelerator, recognize the importance of design calculation, and creatively plan, design, and draw a structure, space, and dimensions that satisfy performance, to acquire comprehensive machine design skills.
Achievement 3	Learn to employ design and drawing methods for mechanical elements, and through repetition by reviewing the material, to independently drive design promotion and to learn how to use design reference materials and reference examples of machine design. Learn a wide range of design ideas including the importance of delivery time, to fully learn the necessity of and methods for continuous learning.	Learn to employ design and drawing methods for mechanical elements, and through repetition by reviewing the material, to independently drive design promotion and to learn how to use design reference materials and reference examples of machine design. Learn a wide range of design ideas including the importance of delivery time, to learn the necessity of and methods for continuous learning.	Do not learn to employ design and drawing methods for mechanical elements, and through repetition by reviewing the material, to independently drive design promotion and to learn how to use design reference materials and reference examples of machine design. Learn a wide range of design ideas including the importance of delivery time, to learn the necessity of and methods for continuous learning.

Teaching Method

Outline:

We will learn about the design process up to machining through the planning, designing, and drawing of a two-stage three-axis gear decelerator, a typical turning machine consisting of various mechanical components such as gears, bearings, and axles. In the first semester, students will learn how a mechanical design should be through lectures on technical calculations necessary for design. They will plan gear decelerators and prepare design calculations, and recognize the importance of design calculations. In the second semester, students will creatively plan structures, shapes, and dimensions in a manner that was given to them to satisfy the performance given, then design using AutoCAD Mechanical, to acquire comprehensive machine design skills.
This course will be held in a lecture and lab style and taught by an instructor who is in charge of machine design in a company using his experience. It will use the design of a gear decelerator as an example, and teach how to design mechanical elements, such as a gear, shaft, and rolling bearing.

Style:

After teaching the design theory of various mechanical elements such as gears, bearings, and axles, the lecture will be followed by the planning of a helical gear decelerator and the preparation of the design calculation. Students will complete the design calculation of three-axis helical gear reducer, based on the design specifications of a two-stage helical gear decelerator provided to each student. This course will be conducted in a lecture and lab style.

Notice:

This course's content will amount to 90 hours of study in total. These hours include the learning time guaranteed in classes and the standard self-study time required for preparation / review, and completing assignment reports.
(1) Understand why design calculations are necessary, and learn how to write design calculations that others can understand. (2) Learn the importance of creativity by incorporating ideas and repeating try-and-errors to realize specifications to satisfy the original purposes. (3)Recognize the importance of delivery time.
Students who miss 1/3 or more of classes will not be eligible for evaluation.

Characteristics of Class / Division in Learning

Applicable to Remote Class

Instructor Professionally Experienced

Course Plan

			Theme	Goals
1st Semester
	1st Quarter
		1st	Design techniques for transmitting power and rotating machinery and related design techniques	Learn the definition of machines and the relationship between gear decelerators, the machine production process and the transmission power calculation method for the drive shaft, and the concept of efficiency.
		2nd	Strength design techniques for a drive shaft	Learn the strength of an axis as a rotation axis and the key fixation design method.
		3rd	Design technology for the approval of load bearing on the drive shaft	Learn how to calculate the resultant force, the fractional force, and the external force acting on the shaft.
		4th	Selection and calculation technology for bearings	Learn the concepts and selection methods of various types of rolling bearings.
		5th	Selected exercise on bearings	Learn how to calculate bearing life and bearing selection and select them by catalog.
		6th	Basic design technology for helical gears	Can analyze and evaluate the loads of the helical gear and the forces acting on the shaft.
		7th	Strength calculation techniques for a helical gear	Can explain the strength calculation of a toothed gear, determine the design specifications, and promote the design of a helical decelerator.
		8th	Explanation of the practice problem or short test	Explanation of the practice problem or short test
	2nd Quarter
		9th	Creating design calculations (1)	Can design modules, widths, etc. for each gear based on the given specifications.
		10th	Creating design calculations (2)	Calculate the dimensions, center distance, twist angle, etc. of each toothed wheel and complete the simplified drawing.
		11th	Creating design calculations (3)	Can analyze such loads acting on the axis system such as gears, shafts and bearings.
		12th	Creating design calculations (4)	Can design the shape of each shaft from the force of action, and explain the points and summarize them as a schematic drawing by each student.
		13th	Creating design calculations (5)	Design bearings that support the rotating shaft from the acting force, and select rolling bearings.
		14th	Creating design calculations (6)	Can create an overview drawing of a helical gear decelerator consisting of designed and selected mechanical elements.
		15th	Development of 3D drawings of a helical decelerator Create and promote a 3D drawing of design models by each student	Can complete a three-dimensional figure of a helical gear decelerator based on the completed design calculations.
		16th	No final exam

Evaluation Method and Weight (%)

	Examination	Drawing・Income statement	Exercises	Total
Subtotal	0	80	20	100
Basic Proficiency	0	0	0	0
Specialized Proficiency	0	80	20	100
Cross Area Proficiency	0	0	0	0