moment of inertia
Moderator: GiD Team
moment of inertia
Is it possible to see the moment of inertia of a surface in Tdyn? If yes, how?
Re: moment of inertia
What do you mean by the 'moment of inertia of a surface'?
Do you mean the moment of inertia of a 2D surface related to an axis?
(e.g. I-xx, I-yy. I-xy of the section of a beam)
the CompassFEM-Tdyn problemtype has a catalog of sections with its geometrical properties: dimensions, area, and moments of inertia (instead of tdyn select 'structural analysis' GiD has also a Tcl-command to calculate the inertia properties of a geometry volume
GiD_Tools geometry mass_properties <volume_id>
https://gidsimulation.atlassian.net/wik ... 6/Geometry
e.g. can write this in the commands entry of GiD to see the inertias of the volume number 1:
-np- W [GiD_Tools geometry mass_properties 1]
or similarly of a mesh of volume (defined by its tetrahedra or by its closed boundary triangles)
GiD_Tools mesh mass_properties <tetrahedra_ids> | -boundary_elements <triangle_ids>
https://gidsimulation.atlassian.net/wik ... 47017/Mesh
Do you mean the moment of inertia of a 2D surface related to an axis?
(e.g. I-xx, I-yy. I-xy of the section of a beam)
the CompassFEM-Tdyn problemtype has a catalog of sections with its geometrical properties: dimensions, area, and moments of inertia (instead of tdyn select 'structural analysis' GiD has also a Tcl-command to calculate the inertia properties of a geometry volume
GiD_Tools geometry mass_properties <volume_id>
https://gidsimulation.atlassian.net/wik ... 6/Geometry
e.g. can write this in the commands entry of GiD to see the inertias of the volume number 1:
-np- W [GiD_Tools geometry mass_properties 1]
or similarly of a mesh of volume (defined by its tetrahedra or by its closed boundary triangles)
GiD_Tools mesh mass_properties <tetrahedra_ids> | -boundary_elements <triangle_ids>
https://gidsimulation.atlassian.net/wik ... 47017/Mesh