==== Load ==== A Load applies a (usually constant) force, torque, mass-proportional or generalized load onto Nodes or Objects via Markers. The requested \ ``Marker``\ types need to be provided by the used \text{Marker}. The marker may provide more types than requested. For non-constant loads, use either a \ ``load...UserFunction``\ or change the load in every step by means of a \ ``preStepUserFunction``\ in the \ ``MainSystem``\ (mbs). .. toctree:: :maxdepth: 2 LoadForceVector.rst LoadTorqueVector.rst LoadMassProportional.rst LoadCoordinate.rst