FEM ConstraintSelfWeight

Description
Constraint self weight defines gravity acceleration 9,81 m/s^2 acting on the whole model in the prescribed direction.

Usage

 * 1) To invoke command either:
 * 2) * Press on the [[Image:FEM ConstraintSelfWeight.png|24px]] button
 * 3) * Choose → Mechanical Constraints →  from the top menu
 * 4) * Use the keyboard shortcut: then  keys.
 * 5) You can modify the direction of gravitation by changing its vector coordinates in the property bar of newly created ConstraintSelfWeight object.

Scripting
New object

Add object to the analysis named Analysis

Example:

Limitations

 * You need to modify .inp file to edit gravity acceleration.
 * Self weight is applied to the element set Eall means to the whole model.

Editing CalculiX input file
Acceleration constant can be edited by hand modification after generating CalculiX input file.

Example of lines in .inp file:

where 9810 is gravity acceleration magnitude in [mm/s^2], and 0,0,-1 is direction vector.

Solver Z88

 * not implemented in Z88 solver (March 2017)