Every library element has one, two or more hydraulic connectors, where the element can be connected to other library elements. All elements of the main hydraulic library can be connected together in an almost arbitrary way. As almost every component of the main library has a lumped volume at each port a model can be build by just connecting the appropriate library components. The user doesn't have to add lumped volumes at each node to model the pressure dynamics. Dymola will reduce the index of the resulting DAE and solve it.
Experienced users can use the additional Basic libraries that can be found in the main library.
These components haven't included lumped volumes at the ports and therefore the user has to add the required volumes or can use numerical solution of algebraic equations. This is the same sign convention as in the mechanics libraries, where a positive difference between across variable at flange A and across variable at flange B gives a positive through variable, e. Electrical The reader is cautioned that models contained in this library may not have been exercised for all cases of interest. While every effort has been made, within the time available, to ensure that the models are free of computational and logic errors, they cannot be considered completely validated. Any application of these models without additional validation is at the risk of the user.