Question

Linked Answer Question:
A vibratory system consists of a mass 12.5 kg, a spring of stiffness 1000 N/m, and a dashpot with damping coefficient of 15 Ns/m

The value of critical damping of the system is

• A. 0.223 Ns/m
• B. 17.88 Ns/m
• C. 71.4 Ns/m
• D. 223.6 Ns/m

Answer 1

The correct option is D 223.6 Ns/m

Given :

$m=12.5kg,k=1000N/m,c=15Ns/m$

Critical damping coefficient

$=2\sqrt{km}=2\sqrt{1000\times 12.5}$

$=223.6Ns/m$