Course title
B00451002
Engineering Mechanics 3

 hosoya naoki
Course description
Vibration engineering covers vibration phenomena of mechanical systems (e.g. machines or structures) that are assumed to be a single-degree-of-freedom or two-degree-of-freedom system as an introduction against undergraduate students. Furthermore, students study a planar kinematics of rigid bodies and a rigid-body dynamics in three dimensions to design a motion of a hard robot.
Purpose of class
To realize a dynamic design of mechanical systems with desired performance, students should learn to express and solve differential equations of motion of mechanical systems with a single-degree-of-freedom or two-degree-of-freedom. In addition, students should study a planar kinematics of rigid bodies and a rigid-body dynamics in three dimensions.
Goals and objectives
  1. To understand the derivation and solution of differential equations of motion
  2. To understand the theory of free or forced vibrations with or without damping
  3. To understand the planar kinematics of rigid bodies
  4. To understand the rigid-body dynamics in three dimensions
Language
Japanese
Class schedule

 Class schedule HW assignments (Including preparation and review of the class.) Amount of Time Required
1. Introduction
Free vibrations without damping 		To investigate vibration engineering
To read vibration free vibrations without damping 		190minutes
100minutes
2. Derivation of the differential equations of motion To read derivation of the differential equations of motion 190minutes
3. Free vibrations with viscous damping To read free vibrations with viscous damping 190minutes
100minutes
4. Measurement of damping (logarithmic decrement) To read measurement of damping (logarithmic decrement) 190minutes
5. Forced vibrations without damping To read forced vibrations without damping 190minutes
6. Forced vibrations with viscous damping To read forced vibrations with viscous damping 190minutes
7. Response to arbitrary excitation (the convolution integral)
Midterm examination 		To read response to arbitrary excitation (the convolution integral)
To review from 1st to 7th lecture 		190minutes
8. Angular momentum To read response to angular momentum 190minutes
9. Planar kinematics of rigid bodies
(rotation about a fixed axis) 		To read response to planar kinematics of rigid bodies (rotation about a fixed axis) 190minutes
10. Planar kinematics of rigid bodies
(mass moment of inertia) 		To read response to planar kinematics of rigid bodies
(mass moment of inertia) 		190minutes
11. Planar kinematics of rigid bodies
(relative velocity and relative acceleration) 		To read response to planar kinematics of rigid bodies
(relative velocity and relative acceleration) 		190minutes
12. Planar kinematics of rigid bodies
(motion relative to rotating axes) 		To read response to planar kinematics of rigid bodies
(motion relative to rotating axes) 		190minutes
13. Rigid-body dynamics in three dimensions To read response to rigid-body dynamics in three dimensions 190minutes
14. Coriolis force
Final Examination 		To read response to Coriolis force
To review from 8th to 13rd lecture 		190minutes
Total. - - 2860minutes
Relationship between 'Goals and Objectives' and 'Course Outcomes'

 Homework and quiz Midterm examination Final examination Total.
1. 5% 20% 10% 35%
2. 5% 20% 10% 35%
3. 5% 0% 10% 15%
4. 5% 0% 10% 15%
Total. 20% 40% 40% -
Evaluation method and criteria
The grading for this class was broken down as follows:
Homework and quiz (20%)
Midterm examination (40%)
Final examination (40%)
The threshold of 60 point is to solve perfectly sample problems that are explained in each class.
Textbooks and reference materials
Yuichi Sato, Understanding vibration phenomena, ISBN978-4-274-20483-8
(J.P. Den Hartog, Mechanical vibrations, ISBN0-486-64785-4)
J. L. Meriam and L. G. Kraige, Engineering Mechanics Dynamics, ISBN 978-0-470-61481-5
Prerequisites
Students should review the Engineering mechanics 1 and 2.
Office hours and How to contact professors for questions
  • If you have any questions, please contact during office hours. I will be holding office hours (Zoom) on Fridays from 5-6 PM(JST).
    Sep. 24 - Jan. 21
Regionally-oriented
Non-regionally-oriented course
Development of social and professional independence
  • Non-social and professional independence development course
Active-learning course
N/A
Course by professor with work experience
Work experience Work experience and relevance to the course content if applicable
N/A 該当しない
Education related SDGs:the Sustainable Development Goals
  • 4.QUALITY EDUCATION
  • 9.INDUSTRY, INNOVATION AND INFRASTRUCTURE
Last modified : Tue Nov 16 04:03:05 JST 2021