Measure the structure response to a random excitation

[Anonymous]

Hi all

I would like to measure the response of a frame with two degrees of freedom in terms of acceleration when exposed to a random white noise excitation. The idea was to choose a duration of the excitation like 16 minutes at then receive a series in the time domain with the acceleration of each degree of freedom that I would be able to process in MatLab and convert to the frequent domain to do discover the natural frequencies and the modes of vibration.

Is there anyway to do that with RSA 2014?

Thansks  lot 

[Rafal.Gaweda]

FRF or THA calculations.

[Anonymous]

But I dont know anything about the excitation. How do I tell the program that I want a white noise excitation? 

[Rafal.Gaweda]

But I dont know anything about the excitation. How do I tell the program that I want a white noise excitation? 

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For program it does not matter whether it is noise excitation or any other type of excitation. You need to enter excitation function.