Please I would like to do test of vibration

25Hz - 2g for 30 min

please what is the best test to do ( is it linear dynamic - modal time history ? ) and what is the specific parameter to put it the "curve" for the load ??

Please I would like to do test of vibration

25Hz - 2g for 30 min

please what is the best test to do ( is it linear dynamic - modal time history ? ) and what is the specific parameter to put it the "curve" for the load ??

Hi Qmb,

The type of load you have here would require that you do a Linear Dynamic Harmonic analysis with a 2G Base Excitation applied to the model. The 'Variation with Frequency' curve would need to peak at 25 Hz. The time that the load lasts would not change the stress/displacement/strain so it is not something to include in the analysis.

The Base Excitation might look like this:

The 'Variation with Frequency' curve would then look like this:

Hi Qmb,

The type of load you have here would require that you do a Linear Dynamic Harmonic analysis with a 2G Base Excitation applied to the model. The 'Variation with Frequency' curve would need to peak at 25 Hz. The time that the load lasts would not change the stress/displacement/strain so it is not something to include in the analysis.

The Base Excitation might look like this:

The 'Variation with Frequency' curve would then look like this: