Lecture 1 - Introduction to Mechanical Vibrations
Study of oscillatory motion of elastic bodies and the forces associated with them.
Comparison with earlier course work in Engineering:
Static versus Dynamic versus Vibrations
∑F External0 ∑F External ∑F Effective ∑F External ∑F Effectiveut a reference point
Vibrations are described as periodic oscillations
ie. any motion that repeats itself after an interval of time
Elements of Walking, Speech, Stringed Instruments, Wind Instrument etc.
Industrial equipment, Cars, Planes and Trains…
Consider a pendulum – Period constant regardless of amplitude (function of length)
Elements of Vibrating Systems:
Energy echanicllectrical Flu