Mechanical Engineering - Theory of machines - Discussion

Discussion Forum : Theory of machines - Section 1 (Q.No. 3)
3.
In a vibrating system, if the actual damping coefficient is 40 N/m/s and critical damping coefficient is 420 N/m/s, then logarithmic decrement is equal to
0.2
0.4
0.6
0.8
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
27 comments Page 3 of 3.

Murtadha abass said:   1 decade ago
2*pi*Zeta = 2*3.14*0.09 = 0.565.

Swagat said:   9 years ago
Thanks for all you explanation.

Sarvesh jaiswal said:   1 decade ago
Ld = 2*3.14*0.1/(1-0.1^2).
(1)

Ankit said:   10 years ago
2xpixZeta/sqrt(1-Zeta^2).

Kareena shah said:   9 years ago
Perfect answer @Jithin.

Leela said:   8 years ago
Cc=2π40/420 = 0.61.
(3)

Pradeep said:   9 years ago
What is zeta?


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