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Mechanical Dynamics２

 KUROSAWA, Yoshio
  Elective  2 credits
【Mechanical and Precision System･1st semester】
19-1-0219-3314

１．
Outline
Second or more-degrees-of-freedom systems and systems with constant vibration are described based on the knowledge of single-degree-of-freedom vibration system learned in Mechanical Dynamics 1. This course describes free vibration, natural frequencies, forced vibration and its resonance in linear vibration systems. Finally, nonlinear vibration systems and parametric resonance are introduced briefly.
In this class, it acquires knowledge, technology and ability about diploma policy 2 and 3 and 4.
２．
Objectives
Vibration engineering in machine design is important to fatigue fracture under cyclic load. Also, it is important to refine design problems related to riding comfort in automobiles and so on. This course describes free vibration, natural frequencies, forced vibration and resonance in second-degree-of-freedom model composed of mass, spring and damper. The objective is to study basic principles and laws in vibration engineering.
３．
Grading Policy
・Term-end examination : 75%
・Short examination : 20%
・Print and the problem to have let out while lecturing : 5%
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.
４．
Textbook and Reference
Yoshio Iwata et al; 『Mechanical vibration』Surikougakusya　ISBN978-4-901683-80-7
５．
Requirements (Assignments)
Make preparation which takes the following course by solving the exercises - the exercises in the textbook and so on.
６．
Note
Please bring a scientific calculator every lecture.
If you’re absent from lecture, please study and revise the topics taught on that day.
７．
Schedule
１. Free vibration for two degrees of freedom by no damped system
２. Free vibration for two degrees of freedom by torsional vibration system
３. Free vibration for two degrees of freedom by car body vibration system
４. Forced vibration for two degrees of freedom
５. Lagrange equation
６. Matrix vibration analysis (free vibration, orthogonality of eigenmode)
７. Matrix vibration analysis (modal coordinate)
８. Matrix vibration analysis (forced vibration)
９. Short examination, vibration of continuum
10. Commentary of the short examination and summary of the first half
11. Vibration of string
12. Free vibration for stick
13. Forced vibration for stick
14. Transverse vibration of beam
15. Vibration of panel
１．
Outline
Second or more-degrees-of-freedom systems and systems with constant vibration are described based on the knowledge of single-degree-of-freedom vibration system learned in Mechanical Dynamics 1. This course describes free vibration, natural frequencies, forced vibration and its resonance in linear vibration systems. Finally, nonlinear vibration systems and parametric resonance are introduced briefly.
In this class, it acquires knowledge, technology and ability about diploma policy 2 and 3 and 4.
２．
Objectives
Vibration engineering in machine design is important to fatigue fracture under cyclic load. Also, it is important to refine design problems related to riding comfort in automobiles and so on. This course describes free vibration, natural frequencies, forced vibration and resonance in second-degree-of-freedom model composed of mass, spring and damper. The objective is to study basic principles and laws in vibration engineering.
３．
Grading Policy
・Term-end examination : 75%
・Short examination : 20%
・Print and the problem to have let out while lecturing : 5%
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.
４．
Textbook and Reference
Yoshio Iwata et al; 『Mechanical vibration』Surikougakusya　ISBN978-4-901683-80-7
５．
Requirements (Assignments)
Make preparation which takes the following course by solving the exercises - the exercises in the textbook and so on.
６．
Note
Please bring a scientific calculator every lecture.
If you’re absent from lecture, please study and revise the topics taught on that day.
７．
Schedule
１. Free vibration for two degrees of freedom by no damped system
２. Free vibration for two degrees of freedom by torsional vibration system
３. Free vibration for two degrees of freedom by car body vibration system
４. Forced vibration for two degrees of freedom
５. Lagrange equation
６. Matrix vibration analysis (free vibration, orthogonality of eigenmode)
７. Matrix vibration analysis (modal coordinate)
８. Matrix vibration analysis (forced vibration)
９. Short examination, vibration of continuum
10. Commentary of the short examination and summary of the first half
11. Vibration of string
12. Free vibration for stick
13. Forced vibration for stick
14. Transverse vibration of beam
15. Vibration of panel