Positioning File

In the hardware, the geometry is deformed if the position of the upper legs or torso is changed with respect to the pelvis. Also the jacket has to be deformed when the arms are rotated.  A special positioning-file <wsid50_position_file_mm_ms_kg.key> is delivered to perform these rotations by a pre-simulation. The positioning-file of the WorldSID is very easy to use. At the top of this file you will find a set of parameters you have to define. These parameters are shown in the following table. 

Parameter	Description
term	termination time
tmove	time to move parts
trans_x	translation of whole dummy model in x direction
trans_z	translation of whole dummy model in z direction
torsor	local y-rotation of torso
larmry	left arm rotation about  y
rarmry	right arm rotation about  y
llegry	left femur rotation about y
rlegry	right femur rotation about y

In case you don’t want to translate or rotate an assembly, use a very small value like 1.0E-10. Please do not use zero as the value, because zero as scaling factor is default 1 in LS-DYNA. As the second step you have to add your include-files necessary for positioning the dummy model. Usually only seat and dummy models are used for the positioning procedure. Please define a *CONTACT_AUTOMATIC_SURFACE_TO_SURFACE for the contact between the dummy and seat (environment). The WorldSID properties for this contact are defined in the part set 1500.