Altair RISE

A program to recognize and reward our most engaged community members

modal analysis in meter unit?

Hi,

Can I change the default unit of milimeter (mm) into meter (m)? and how to do it?

Thanks

English

OptiStruct

Hi,

I already setup material properties with value according SI unit as below:

E = in pascal (Pa)

NU = unitless

Density = kg/m^3

Then, run modal analysis. But has below error.

A fatal error has been detected during input processing:

*** ERROR # 2023 ***

ADAMS MNF file creation requires DTI,UNITS card.

*** Run terminated because of error(s) in the input data.

Anyone can help, what is wrong actually?

Thanks

Hi,

You need to add DTI UNITS card.

Go to Control cards>> DTI_UNITS>> input the same unit system which you have used for modelling and run the analysis.