Mechanical vibrations
L L Koss
4 points * 22 lectures, 6 tutorials, 9 laboratory hours * Second semester * Clayton * Prerequisites: MEC2440, MAT2910, MAT2920 and MAT2930
Treatment of undamped free vibration. Energy and Rayleigh's method applied to beams. Damped free vibration. Types of damping. Solution for viscous damping. Logarithmic decrement. Forced vibration and impedance concepts. Resonance. Reciprocating and rotating unbalance. Vibration isolation. Whirling of rotating shafts. Fourier analysis. Transient and non-periodic vibration. Impulsive excitation. Arbitrary excitation. Systems with two degrees of freedom. Normal mode vibrations. Principal coordinates. Solutions and applications. Continuous systems. Torsional vibration rods. Vibrating string. Transverse vibration of beams. Lagranges equations. Applications. Human effects. Computerisation and finite elements.
Assessment
Examinations: 75% * Laboratory work and tutorial: 15%
Prescribed texts
Iman D J Engineering vibrations Prentice-Hall, 1994