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Mechanical Vibration
Introduction
The main objective of the course is to obtain the dynamic response of single and multiple degree-of-freedom (DOF) systems.
- Math preliminaries
- Developing equations of motion
- Single DOF Vibrations
- Multiple DOF Vibrations
- Vibration absorbers
- Natural frequencies and Mode shapes n
- Mode shapes normalization and modal analysis
- Solving for discrete system vibration
Syllabus
Introduction
- Mathematical preliminaries
- Oscillatory motion
- Industrial applications
Single degree of freedom (SDoF) systems
- Derive the equations of motion for SDof system
- Newton’s equation of motion
- Work and energy equation
- Free vibration of undamped SDoF systems
- Forced Vibration of undamped SDoF systems
Types of damping in structures
- Viscous damping
- Coulomb damping
- Structural damping
Single degree of freedom (SDoF) systems
- Free vibration of damped SDoF systems
- Forced vibration of damped SDoF systems
- Vibration isolation
- Transmissibility
- Transient analysis of SDoF systems
- Equation of motion
Multi degrees of freedom (MDoF) systems
- Free vibration of undamped MDoF systems
- Natural frequencies
- Mode shapes
- Time response of MDoF systems
- Forced response of MDoF systems
- Base motion
- Vibration absorbers
- Lagrange’s method
- Modal superposition
Approximation techniques in estimation of natural frequencies and mode shapes
- Dunkerely’s method
- Rayliegh’s method
- Direct iteration method
Prerequisites:
Dynamics
Engineering Mathematics
Differential Equations
Grading Policy:
40% Midterm Exam
50% Final Exam
10% Homeworks + Quiz
Teacher Assistants:
Miss S Rashidi, PhD student
Time:
Saturday 9:30 -11:00
Monday 9:30 -11:00
Class 3, Mechanical Engineering Department
Homeworks:
Term:
Spring 2020
Grade:
Undergraduate