The STAAD give me the values of frequency similar to robot, but the rel.mas.Ux, dont pass the 90%, if i take the frequency of the mode that pass the 90%, its bigger of the STAAD
just to understand, could you give us the values calculated by STAAD and their exact name?
Best Regards
Frequency X: 1.27
Frequency y: 1.49
I attach the model of Robot
you've already given your Robot model in the other topic about design parameters (lateral buckling).
I can't compare two calculations if I don't have the values.
However, I notice that you've only taken live loads into account as masses.
Best Regards
I only take the overloads as masses because i dont check disregard desity, what I understand is that self-weight is automatically considered mass.
About the STAAD calculations you need the file? or what you need to can compare?
see private message
i don't think that 2 seconds for a non-braced articulated structure is a surprising result.
i'd even say that the results can be even different if you consider the relative stiffness of the joints.
Best Regards
You didn't reply to my question in message 2 of this topic
https://forums.autodesk.com/t5/robot-structural-analysis-forum/ratios-are-incorrect/td-p/12731193
M. Agayr
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it seems that the values are the same
RAYLEIGH FREQUENCY FOR LOADING 22 = 0.49517 CPS
Best Regards
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