Centre of Mass

Element to define a mass point with position and mass.

The body of the element defines the position of the mass point with a mathematical formula. Position of the mass point given in cartesian coordinates of the global laboratory system.
If not set, the attribute ComElements must be used.

Attributes

Attribute Description Required 
name
 name of the element Yes
 
Mass
 mass of the mass point given as mathematical formula.
If not set, the attributes CoMElements or MassPercentage and BodyMass must be used.		 No 
CoMElements
 mass and centre of mass cann be computed from a blank seperated list of CoM elements. This attribute can not be used in combination with the attributes Mass, MassPercentage and BodyMass.
 No 
MassPercentage
 Mass of the mass point given as percentage of the body mass. If this attribute is used the attribute BodyMass must also be set.
 No 
BodyMass
 Mathematical formula or double value which defines the total body mass. It is used in combination with the attribute Masspercentage to define the mass of the mass point.

Generated Trajectories

name type 
<name>Position
 3d vector 
<name>Mass
 double

Examples

 <CoM name="RLeg"
 Mass="100.0">A+B</CoM>