Mechanical Dynamics1
TeachersKUROSAWA, YoshioStaffInfo
Grade, SemesterYear 2 2nd semest [Department of Mechanical and Precision System, Faculty of Science and Engineering]
CategoryBasic Major Subjects
Elective, CreditsRequisites 2credit
 Syllabus Number1D201

Course Description

One degree of freedom vibration is described in basic vibration problems. This course describes free vibration, natural frequencies, forced vibration and its resonance in the one degree of freedom model composed of mass, spring and damper. The objective is to study basic principles and laws in vibration engineering.
In this class, it acquires knowledge, technology and ability about diploma policy 2 and 3 and 4.

Course Objectives

Vibration engineering in machine design is important to fatigue fracture under cyclic load. Also, it is important for the refinement of design in order to solve problems of automobile riding comfort and so on. This course describes free vibration, natural frequencies, forced vibration and resonance using a simple model composed of mass, spring and damper. The objective is to study basic principles and laws in vibration engineering.

Grading Policy

・Term-end examination : 65%
・Short examination : 20%
・Print and the problem to have let out while lecturing : 15%
Students will not be evaluated when they are not attending lectures more than 2/3. Small test will be returned after grading and will be explained during lecture. Answers will be upload to LMS.

Textbook and Reference

KindTitleAuthorPublisher
TextbookMechanical vibration
Yoshio Iwata et alSurikougakusya 
ISBN978-4-901683-80-7
References

Requirements(Assignments)

The materials for each lesson will be uploaded on the LMS in advance, and the answers to the problem exercises performed during the lesson will be uploaded on the LMS until the next lesson.
Please prepare and review the lecture for about 3 hours each time.

Note

Please bring a scientific calculator to every lecture.
If you’re absent from lecture, please study and revise the topics taught on that day.

Schedule

1A machine and vibration, modeling, procedure of the vibration analysis, harmony vibration
2Composition of the harmony vibration
3Free vibration for one degrees of freedom by no damped system
4Energy method
5Free vibration for one degrees of freedom by damped system
6Coulomb damping
7Viscous damping and Coulomb damping
8Short examination, Forced vibration for one degrees of freedom by no damped system
9Commentary of the short examination and summary of the first half
10Response function and resonance
11Forced vibration for one degrees of freedom by damped system (viscous damping)
12Forced vibration for one degrees of freedom by damped system (Coulomb damping,hysteresis)
13Forced vibration by inappropriate external force, forced vibration by the displacement input
14Transient response by impulse, vibration analysis using Laplace transform
15Vibration of the rotor system