You can also use PTC Mathcad free version to convert the units.
Posts by JCOLE
-
-
I got you. I posted this elsewhere as a duplicate.
You want to put in the primary values Ixx, Iyy, and Izz from the CAD export.
I assumed the values are from the flange and not about the center of mass.Corrected: Values are about center of mass.Select kg and m for the units for CAD.
Use this: 1 kg*m2 = 10.197 kgf*cm*s2
If you need convincing, the conversion is as follows:
First, know that 1kgf = m*g = kg * (9.81)m/s^2=9.81N
Start with what CAD gives you in regular units: kg*m^2
-Then, multiply by (s^2/s^2)
kg*m^2*(s^2/s^2) = (kg*m/s^2)(m)(s^2)
Note: 1 kg*m/s^2 = 1N
Substituting, you have
(kg*m/s^2)(m)(s^2) = (N)*m*s^2
Next, you sub 1kgf = 9.81N
(N)*m*s^2 *(1kgf/9.81N) = kgf*m*s^2/9.81
Finally, convert m -> cm: 1m/100cm
(kgf*m*s^2/9.81)(100cm/1m) = (100/9.81) kgf*cm*s^2
=10.194 kgf*cm*s^2
-
I got you.
You want to put in the primary values Ixx, Iyy, and Izz from the CAD export.I assumed the values are from the flange and not about the center of mass.Corrected: Values are about center of mass.
Select kg and m for the units for CAD.
Use this: 1 kg*m2 = 10.197 kgf*cm*s2If you need convincing, the conversion is as follows:
First, know that 1kgf = m*g = kg * (9.81)m/s^2=9.81N
Start with what Solidworks gives you: kg*m^2
-Then, multiply by (s^2/s^2)
kg*m^2*(s^2/s^2) = (kg*m/s^2)(m)(s^2)
Note: 1 kg*m/s^2 = 1N
Substituting, you have(kg*m/s^2)(m)(s^2) = (N)*m*s^2
Next, you sub 1kgf = 9.81N
(N)*m*s^2 *(1kgf/9.81N) = kgf*m*s^2/9.81
Finally, convert m -> cm: 1m/100cm
(kgf*m*s^2/9.81)(100cm/1m) = (100/9.81) kgf*cm*s^2=10.194 kgf*cm*s^2