Advanced Vibrations & Acoustics
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Follow on Instagram for UpdatesAdvanced Vibrations & Acoustics Syllabus — Unit-wise Content
The official GTU curriculum for Advanced Vibrations & Acoustics (subject code ME02078061) as prescribed for MD · Semester 2 divides the course into 6 units, covering 57 listed topics. The unit-wise breakdown below is read from the GTU syllabus document for this subject code, so you can check what the course actually covers before deciding which papers to attempt.
Download the official syllabus PDF (ME02078061)Unit 1 Fundamentals of mechanical vibrations
- Sources of vibration
- Free Vibration
- Forced vibration
- Natural frequency
- Equivalent system
- Energy method
- Response to an initial disturbance
- Duhamel’s integral
- Stiffness modeling
- Non linear stiffness
- Damped models
- single degree of freedom system with viscous damping
- Logarithmic decrement
- General excitation- Duhamel’s integral
- Harmonic excitation
- Mechanical Impedance
- System identification from frequency response
Unit 2 Two Degree of Freedom Systems
- Free vibration of spring coupled system
- Two degrees of freedom mass coupled systems
- Forced vibrations of undamped system
- Undamped vibration absorbers
- Forced damped vibrations
- Vibration Isolation
Unit 3 Multi degree of freedom systems
- Closed couple systems
- Far coupled systems
- Orthogonality of mode shapes
- Modal analysis
- Forced vibration
- Using Lagrange’s equation to derive equation of motion
Unit 4 Numerical methods
- Approximate methods for fundamental frequency
- Dunkerley’s lower bound approximation
- Rayleigh’s upper bound approximation
- Matrix method
Unit 5 Continuous systems
- System governed by wave equation
- solution of wave equation for free and forced vibrations
- Free and forced vibration of beams
Unit 6 Fundamentals of Acoustics
- Plane acoustic waves
- Sound speed
- characteristic acoustic impedance of elastic media
- sound intensity
- dB scale
- Transmission Phenomena
- transmission from one fluid medium to another
- normal incidence
- reflection at the surface of a solid
- standing wave patterns
- Symmetric Spherical waves
- near and far fields
- simple models of sound sources
- sound power
- determination of sound power and intensity levels at a point due to a simple source
- mechanism of hearing
- thresholds of the ear – sound intensity and frequency
- equal loudness levels
- pitch and timbre
- masking by pure tones
- masking by noise
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