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Thread: A single degree of freedom damped spring mass system is subject to base excitation

  1. #1
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    A single degree of freedom damped spring mass system is subject to base excitation

    A single degree of freedom damped spring mass system is subject to base excitation. The system properties are Mass m = 1000 kg Natural frequency fn = 0.1 Hz Damping ratio zeta = 0.2 Excitation displacement 1mm at a frequency f = 0.12 Hz What is the amplitude of the response in mm?

    I found H(ω) but I don't know how to find Force F in order to calculate A=F*H(ω)?

    I couldn't upload a picture with my workings so used dropbox:

    https://www.dropbox.com/s/0u2aliiovs...5833s.jpg?dl=0

    Thanks in advance
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  2. #2
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    Re: A single degree of freedom damped spring mass system is subject to base excitatio

    Hey cxz7410123.

    Are you aware about going from the frequency domain to the time domain?
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  3. #3
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    Re: A single degree of freedom damped spring mass system is subject to base excitatio

    Thank you for the reply. I found the solution thank you
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