Hydraulics


Hydraulic Connection
Hydraulic Port
Basic Elements
Actuators
Valves
Accessories and Sensors
Lines
Subsea
Utilities

The Hydraulics library offers elements for efficient and intuitive modeling of fluid-power systems and components. Users are able to create their models according to the hydraulic circuit diagram, without any need for setting up differential equations, signal flow diagrams or transfer functions. This approach is extremely suitable not only for the system engineer, who can set up his model directly from the circuit schematics, but also for the component engineer. Here, generic elements such as mass, spring, spool area, displacement volume or valve edge can be arranged and connected graphically in order to resemble the physical structure of complex valve types, pumps or motors. Such sub-models may be grouped together to a new Compound element and added to the library.

Input parameters for each element are kept as simple as possible and close to the technical device. In spite of the simple and intuitive user interface, the physical behavior of the element models considers all relevant effects and non-linearities, such as

An extensive Fluid Library offers a great variety of pre-defined hydraulic fluids. Users can easily modify or enhance the list of pre-defined fluids at any time.

All hydraulic elements can be connected to each other without any restriction. Furthermore, many elements provide an interface to other domains and libraries. For example, hydraulic Actuators can be connected to elements from the libraries Mechanics (1D/2D/3D), Power Transmission (1D) or Electric Motors. The Piston Accumulator can be connected with elements from the Pneumatics library. The hydraulic fluid Volume and the hydraulic Pipe might be completed with elements from the Thermics library, in order to take heat transfer effects into account. This multi-domain approach enables comprehensive analysis and investigation of complex engineering systems.

The elements of the Hydraulics library can be used for component modeling as well as for system modeling. The sub-folders Basic Elements and Proportional Directional Control Edges provide models, which are dedicated to component modeling, since they are based on geometry parameters and therefore close to the physical devices. The majority of the other models are suitable for system modeling, which means that parameters are tailored to the needs of the system engineers. Here, parameters are oriented towards typical catalog data of the real technical device.