The aim of the research project was to expand the InsECT calculation tool. so that it can be used to calculate the contact temperature of rotary shaft lip-type seals for more practical applications in order to evaluate the risk of thermal damage. The basic tool was already developed at the IMA.
In order to understand the influences of various operating conditions multiple test runs were performed on a friction torque test bench. In these tests the friction torque and contact temperature was measured. Rotary shaft lip-type seals with protection lips and nonwovens, a wide selection of fluids (mineral and synthetic oils, water and water-glycol mixtures) and various shaft coatings (amorphous carbon film, thermal spray coatings and nitrocarburization) were tested. Additionally, various design variants of shafts (hollow shafts, shaft shoulders) and
the sealing environment (rolling-element bearings, centrifugal discs and baffle plates) were investigated. The experimentally generated database is complemented by Conjugate Heat Transfer simulations (CHT) and is used to extend the calculation method in the InsECT web app.
The approach and results of the research project can be found in the final report, which is available via the VDMA store (https://www.vdmashop.de/en).
The catalogue of recommendations developed in the project with a systematic presentation of the main factors influencing the contact temperature and options for reducing the contact temperature can be found in the IMA-TechSheet#104180en.
- to the Calculation with IMA-InsECT
https://insect.ima.uni-stuttgart.de/en
The IGF project 21587 N/1 of the Forschungskuratorium Maschinenbau e.V. (FKM) is funded by the AiF as a support of the Industrielle Gemeinschaftsforschung (IGF, Industrial Collective Research) by the Federal Ministry for Economic Affairs and Energy (BMWi) on the basis of a decision by the German Bundestag.
Publications
- Feldmeth, Simon ; Bekgulyan, Sumbat ; Bauer, Frank: Estimating the contact temperature and the pumping rate of rotary shaft seals. In: Jahrbuch Dichten, Kleben, Polymer 2024. (2023), S. 129–146. — ISBN 978-3-946260-10-3 — IMA-DT 746
- Olbrich, Christoph ; Feldmeth, Simon ; Hannss, Jacqueline ; Grün, Jeremias ; Bauer, Frank: Temperaturberechnung – Erweitertes Berechnungstool für die Kontakttemperatur bei Radial-Wellendichtungen (Heft 349 Nr. Abschlussbericht, Vorhaben 919). Frankfurt am Main : Forschungskuratoriums Maschinenbau e.V., 2023 — IMA-DT 747
- Hannss, Jacqueline ; Grün, Jeremias ; Olbrich, Christoph ; Feldmeth, Simon ; Bauer, Frank: Multiphase Conjugate Heat Transfer Analyses on the Assembly Situation of Rotary Shaft Seals. In: Applied Sciences. Bd. 13 (2023), Nr. 19 — IMA-DT 741 (peer-review)
- Feldmeth, Simon ; Olbrich, Christoph ; Bauer, Frank: Influence of Lubricants on the Thermal Behaviour of Rotary Shaft Seals. In: International Sealing Conference : Fachverband Fluidtechnik im VDMA e.V., 2022. — ISBN 978-3-8163-0756-3, S. 147–161 — IMA-DT 729 (peer-review)
Contact
Simon Feldmeth
Dipl.-Ing. Pat.-Ing.Team Manager Simulation
Christoph Olbrich
M. Sc.Research Associate