Question

In vibration isolation system, if \(\omega_r\) is less than \(\sqrt{2}\), then for all values of the damping factor, the transmissibility is

• A. less than unity, but greater than zero
• B. equal to unity
• C. greater than unity
• D. zero

Hint:

For effective vibration isolation, \(\omega_r>\sqrt{2}\) is preferred.

Answer 1

The Correct Option is C

For \(\omega_r<\sqrt{2}\), the transmissibility (ratio of output to input amplitude) is always greater than one regardless of damping, indicating amplification.