Revision for an exam tomorrow, I hope someone can help?
I've been given the answers but I can't work out how to find the damping ratio without being given a velocity or distance for the mass to travel?
A mass of 6kg is suspended on a spring and set oscillating. it is observed that amplitude reduces to 5% of its initial value after 2 oscillations, which takes 0.57 seconds.
Determine the following.
The damping ratio (0.43)
The natural frequency (3.51)
The actual frequency (3.17)
The spring stiffness (2915N/m)
The critical damping coefficient (264.5Ns/m)
The actual damping coefficient (113.7Ns/m)
I can use the damping ratio to help solve some of the other values once I know how to work it out.
Any help appreciated