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Problem with Units
Posted 2013年1月12日 GMT-5 12:00 Modeling Tools & Definitions, Parameters, Variables, & Functions, Structural Mechanics 1 Reply
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hello
I´m using gravitational forces, but I want to use kilogram forces
Someone knows how to use kilogram forces in COMSOL. For example "pound forces" are "lbf" and "pound mass" are "lb", kilogram mass are "kg", but I don´t know how I use kilogram forces.
Kind regards
I´m using gravitational forces, but I want to use kilogram forces
Someone knows how to use kilogram forces in COMSOL. For example "pound forces" are "lbf" and "pound mass" are "lb", kilogram mass are "kg", but I don´t know how I use kilogram forces.
Kind regards
1 Reply Last Post 2013年1月12日 GMT-5 15:15
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Posted:
1 decade ago
Hi
I find it so much easier in SI units, but "les goûts et les couleurs ..." are certainly personal preferences ;)
for me 1[kg]*g_const = 9.81...[N]
where g_const is the COMSOL name for average Earth gravity acceleration in [m/s^]
So of the kgf is not predefined in COMSOL (check the doc/help for "units")
then normalise by a parameter you define as my_kgf=1[kg]*g_const and you should be there, no ?
--
Good luck
Ivar
I find it so much easier in SI units, but "les goûts et les couleurs ..." are certainly personal preferences ;)
for me 1[kg]*g_const = 9.81...[N]
where g_const is the COMSOL name for average Earth gravity acceleration in [m/s^]
So of the kgf is not predefined in COMSOL (check the doc/help for "units")
then normalise by a parameter you define as my_kgf=1[kg]*g_const and you should be there, no ?
--
Good luck
Ivar