pictogram EHD-Simulation

Research Project: EHD-Simulation

Institute of Machine Components (IMA)

Elastohydrodynamics simulation in sealing technology
[Photo: Jeremias Grün]

Since the flowing processes in the sealing gap of dynamic sealing systems are in most cases not accessible to direct measurement, the aim of this research project is to investigate the lubricant film structure and the lubricant redirection in narrow sealing gaps by means of elastohydrodynamic (EHD) theory in a simulative manner. For the efficient numerical execution of EHD simulations, the Institute for Machine Elements has developed the program IMA-FFSim. This allows to examine the hydrodynamic pressure and the hydrodynamic gap height as well as other sealing parameters such as the delivery value and the frictional torque by simulating a large number of sealing systems.


  1. Dakov, Nino: Elastohydrodynamische Simulation von Wellendichtungen am Beispiel der PTFE-Manschettendichtung mit Rückförderstrukturen. Stuttgart, Institut für Maschinenelemente, Dissertation Nr. 193, 2020. — IMA-DT 671
  2. Dakov, Nino ; Feldmeth, Simon ; Stoll, Mario ; Bauer, Frank: On the Estimation of the Dynamic Leak-Tightness of Shaft Seals with Hydrodynamic Sealing Aids through a Hydrodynamic Parameter. In: Tribology Online. Bd. 14/5 (2019), S. 359–366 — IMA-DT 663 (peer-review)
  3. Dakov, Nino ; Stoll, Mario ; Hörl, Lothar ; Feldmeth, Simon ; Bauer, Frank: Multiscale Simulation of a Novel Lip Seal Design. In: Fluid Sealing 2018 : BHR Group, 2018. — ISBN 978-1-85598-1638, S. 161–185 — IMA-DT 638 (peer-review)
  4. Dakov, Nino ; Bauer, Frank ; Haas, Werner: Untersuchung von Rückförderstrukturen an PTFE-Manschettendichtungen mittels elastohydrodynamischer Simulation. In: Tagungsband 58. GfT - Tribologie Fachtagung: Reibung, Schmierung und Verschleiß. Bd. I. Stolberg-Venwegen : Druckservice Zillekens, 2017. — ISBN 978-3-9817451-2-2, S. 24/1–24/13 — IMA-DT 627
  5. Dakov, Nino ; Bauer, Frank ; Haas, Werner: Wellendichtungen aus PTFE-Compound mittels elastohydrodynamischer Simulation besser verstehen / A Better Understanding of Shaft Seals Made of PTFE Compund Through Elastohydrodynamic Analysis. In: Sealing technology - indispensable : Fachverband Fluidtechnik im VDMA, 2016. — ISBN 978-3-8163-0684-9, S. 264–279 — IMA-DT 609


This image shows Jeremias Grün

Jeremias Grün


Team Manager StutCAD

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