MODELICA - Hydraulics Library

Enables the quick optimization and verification of the design of hydrostatic drive systems from the early design phases through to control design and implementation. The library enables seamless virtual component and system testing, using realistic scenarios that results in reduced risk for individuals and minimizes the need for costly physical prototypes.

Hydraulic System Design

The Modelica based Hydraulics Library is a powerful yet simple-to-use tool for the modeling of hydraulic systems using mineral or synthetic oil. It addresses the needs of hydraulic systems development engineers in multiple industries including automotive, train, aerospace and industrial equipment design through its support for multi-disciplinary engineering and real-time and hardware-in-the-loop application verification.

Key Features

  • Wide range of pumps, cylinders, valves restrictions, lines and volumes
  • Real-time multi-engineering
  • System and component design in the same tool
  • Easily integrated into any application domain in any industry
  • Ideally suited for control system design, validation and testing

Typical Applications

The Hydraulics Library is suited for a wide range of applications such as machine tools, automatic transmission, power assist, hydro-pneumatic systems, open and closed circuit drivers used in excavators or forklift trucks.

A typical example, would be an excavator, which is a multi-domain, non-linear system with several degrees of freedom that strongly influence one another. Control system must handle the effects of static and dynamic loads due to different positions of the arm. To get a realistic dynamic simulation the combined mechanical and hydraulic systems and their combined interaction has to be modeled.

Integrate Multiple Engineering Disciplines

The Hydraulics Library is part of the powerful CATIA Systems Engineering solution. The library can be used with both Dymola and CATIA V6 Dynamic Behavior Modeling, either on its own or with other Modelica Libraries, to model and simulate complex systems that can span multiple engineering disciplines.


  • Reduced operator risk through development and virtual testing of power hydraulic systems
  • Concurrent engineering design of complex multi-disciplinary products and systems
  • Faster time to market while minimizing costs through reduced need for physical prototype testing.