TableD1 - frequency/Transient analysis

Altair Forum User · March 2016

For TableD1 units,

TableD1 used in transient analysis, the units are as follows:

x axis - seconds (s)

y - axis - acceleration (mm/s)

TableD1 used in frequency analysis, the units are as follows:

x - axis - Frequency (Hz)

y - axis - Magnitude (dB)

is this correct?

Rahul Rajan_21763 · March 2016

In TABLED1 card for FRF analysis X defines frequencies and Y defines the excitation.

Provide consistent units.Hm optistruct is unitless.

See below post for reference.

Regards

Rahul R

Altair Forum User · March 2016

Does SPCD also define excitation?

Altair Forum User · March 2016

does SPCD (if used for acceleration) define excitation as well?

Altair Forum User · March 2016

Altair Forum User said:

does SPCD (if used for acceleration) define excitation as well?

Yes,

Welcome!