Mechanical Engineering - Theory of machines - Discussion
Discussion Forum : Theory of machines - Section 5 (Q.No. 9)
9.
If ω/ωn is very low for a body vibrating under steady state vibrations, the phase angle for all values of damping factors, will tend to approach
Discussion:
3 comments Page 1 of 1.
Kunaldagha said:
9 months ago
I think the right answer is 180°.
Ravi kiran v said:
7 years ago
Frequency ratio is the ratio of the excitation frequency and the natural frequency of the body.
r=(w/w_n).
The variation of phase angle with frequency ratio is given by the relation:
φ=arctan((2*zeta*r)/(1-r^2)).
zeta=damping ratio.
r=(w/w_n).
The variation of phase angle with frequency ratio is given by the relation:
φ=arctan((2*zeta*r)/(1-r^2)).
zeta=damping ratio.
Dev narayan said:
1 decade ago
Please give the formula for phase angle and frequency ratio?
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