damping ratio = c/(2sqrt(mk)) = 2/(2sqrt(28x13)) = 0.0786 | 7.8% critical damping
damped radian freq = unadamped radian freq x sqrt(1 - damping ratio^2) = 0.679
The amplitude of motion of the mass is logarithmically decreasing and it is a function of the damping ratio.
Homework Statement
I am using MATLAB Symbolic Tool Box "Dsolve"
to solve 2nd order, linear, ordinary, non-homogenous differential equation with initial conditions.
Homework Equations
Equation of motion with base excitation (vibration: single degree of freedom system)
The Attempt at...