okopmaz@uludag.edu.tr +90 224 294 19 62 Uludağ Üniversitesi, Mühendislik Mimarlık Fakültesi, Makine Mühendisliği Bölümü, Görükle, 16059 Bursa
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Website:
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Objective of the Course:
Vibration is a significant phenomenon in engineering systems. Teaching the theory about mechanical vibrations which are getting increasingly important in modern systems, and its applications, and giving basic principles of acoustics are among the goals of this course.
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Contribution of the Course to Professional Development
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Learning Outcomes:
1
Students who take this course can classify, model and analytically or numerically solve general vibration problems in engineering practice. ;
2
They are informed about sound, noise, noise measurement, and noise reduction.;
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Course Content:
Week
Theoretical
Practical
1
Basic concepts of elementary vibration theory System parameters. Mass, stiffness and damping. Equations of motion. Frequency, period. Initial conditions. Models with single degree of freedom.
2
Derivation of equation of motion in a conservative one-degree-of-freedom system.
3
Undamped and damped vibrations of a system with one degree of freedom. Natural frequency and period. Viscous damping. Logarithmic decrement. 1st take-home.
4
System with dry friction. Definition of effective mass. Forced vibrations of undamped system with one degree of freedom. Frequency response spectrum.
5
Forced vibration in a damped system. Isolation and transmissibility. Vibration isolation.
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Response periodic and non-periodic excitation. Convolution and Duhamel integrals. 2nd take-home.
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Systems with two degree of freedom. Undamped case. Natural vibration modes.
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Repeating courses and midterm exam
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Coordinate transformations. Natural coordinates. System response to initial conditions excitation. Beat phenomena. Undamped and damped vibration absorbers. 3rd take-home.
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Multi-degree-of-freedom systems. Lagrangian equations of motion. Linear transformation. Modal matrix. Coupling. Orthogonality in modal vectors.
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Stiffness and inertia matrices. Positive definit and semi-definit systems. Constrained and unconstrained systems. 4th take-home.
Air-borne and structure-born sounds. Relation between mechanical vibrations and noise.
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Textbooks, References and/or Other Materials:
L. Meirovitch, Fundamentals of Vibration, Prentice Hall. W. Seto, Mechanical Vibrations, McGraw-Hill Schaum. L. L. Baranek, Noise and Vibration Control, Inst. Of Noise Control Engineer.
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Assesment
TERM LEARNING ACTIVITIES
NUMBER
PERCENT
Midterm Exam
1
20
Quiz
0
0
Homeworks, Performances
5
30
Final Exam
1
50
Total
7
100
Contribution of Term (Year) Learning Activities to Success Grade
50
Contribution of Final Exam to Success Grade
50
Total
100
Measurement and Evaluation Techniques Used in the Course
Information
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ECTS / WORK LOAD TABLE
Activites
NUMBER
TIME [Hour]
Total WorkLoad [Hour]
Theoretical
14
2
28
Practicals/Labs
0
0
0
Self Study and Preparation
14
2
28
Homeworks, Performances
5
6
30
Projects
0
0
0
Field Studies
0
0
0
Midtermexams
1
1,5
1,5
Others
0
0
0
Final Exams
1
1,5
1,5
Total WorkLoad
89
Total workload/ 30 hr
2,97
ECTS Credit of the Course
3
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CONTRIBUTION OF LEARNING OUTCOMES TO PROGRAMME QUALIFICATIONS
