Two Degrees of Freedom Systems: Principle Modes of Vibrations, Normal Mode and Natural Frequencies, Simple Spring Mass Systems (Without and with Damping), Masses on Tightly Stretched Strings, Double Pendulum, Torsional Systems, Combined Rectilinear and Angular Systems, Geared Systems. Un-damped dynamic vibration absorber, Numerical Example Problems. - Virtual Engineering - Learn CAD/CAE/CFD/DEM/MPS simulation in one platform