Question

In: Mechanical Engineering

Determine the response of a mass-spring system when it is subjected to a half-sine pulse of...

Determine the response of a mass-spring system when it is subjected to a half-sine pulse of 250 dyne amplitude and 0.25? seconds duration. The mass is 20gm and the spring stiffness is 197.4 dynes/cm.

Solutions

Expert Solution

given data:

mass spring system subjected to half sine pulse having

time duration T=0.25 sec

mass of spring = 20gm

spring stiffness = 197.4 dynes/cm=197.4 gm/sec2

need to find out ?

1 dyne =gm.cm/sec2= Newton

natural frequency = m/s

frequency = m/sec

==3.14

= =4

=.785 which is less than 1.

as we know when the resonance frequency is less than natural frequency system is in oscillation conditaion


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