The problem of a dummy positioning on the seat before a crash analysis is the
quasi-static loading which can be resolved by either Radioss
explicit or Radioss implicit solvers.
If deformation remains small, a linear analysis may be used as a simple approach to determine the
position after applying gravity force. However, this method is not valid if the
contact surface between the dummy and the seat is not correctly estimated before
analysis. When comparing the implicit and explicit solvers, it's shown that the
implicit computation enables saving time in the computation. However, the rigid body
modes of the dummy must be controlled. This is not the case if the explicit solver
is used. Figure 1.
