Hydraulic Components

Hydraulische Komponenten © LFD

Today, manufacturers of fluid-mechatronic components and systems are confronted with increasing requirements regarding reliability, energy efficiency and power density, while at the same time development times are becoming shorter and shorter. The research area „Hydraulic Components“ focuses on the investigation, development and validation of methods for computer-aided product development. For this purpose, advanced simulation methods are used for detailed analysis. In order to better understand the physical cause-and-effect relationships in hydraulic components and to validate the models, numerous cross-domain investigations have already been carried out in this context - among others in the main areas of flow and structural phenomena, acoustics, energy efficiency, thermodynamics, fluid film height and temperature as well as contact mechanics and wear mechanisms.
Selected projects

Objects of investigation

  • hydrostatic displacement machines, hydrodynamic and hydrostatic bearings, valves and valve spools, seals
  • components for special applications in automotive and aerospace applications as well as machine tools

Main research areas / questions

  • improvement of energy efficiency, functionality, operating range, robustness and lifetime
  • reduction of noise emissions, pulsations, structural vibrations and cavitation
  • reliable prediction of the steady-state and dynamic operational performance
  • heat transfer, thermo-energetic. behavior
  • adaptation of experimental or simulation methods for special applications (e. g. compact valves, rotating components in hydrostatic displacement machines)
  • development and validation of simulation models and methods

Methods
experimental methods

  • flow visualization (PIV, LIF, shadowgraphy),
  • sound measurements in body, liquid and air,
  • measurements of gap height, pressure, flow rate,
  • temperature in lubrication gaps,
  • operational vibration analysis and much more

simulative and analytical methods

  • steady-state and transient numerical flow simulations (CFD), also considering conjugate heat transfer (CHT) and interactions between deforming bodies (FSI)
  • cross-domain modeling with network-based models (system simulation)

Selected projects

Analysis of Valves

Investigation of Axial Piston Pumps

Plain Bearings and Gear Units

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Professur für Fluid-Mechatronische Systemtechnik
Last modified: Dec 16, 2022