Zobrazeno 1 - 10
of 64
pro vyhledávání: '"Elmar Woschke"'
Publikováno v:
Bulletin of the Polish Academy of Sciences: Technical Sciences, Vol 71, Iss 6 (2023)
A common problem in transient rotordynamic simulations is the numerical effort necessary for the computation of hydrodynamic bearing forces. Due to the nonlinear interaction between the rotordynamic and hydrodynamic systems, an adequate prediction of
Externí odkaz:
https://doaj.org/article/4a3456648ce547dcbf7d3e0bcd1b77ef
Publikováno v:
Cogent Engineering, Vol 9, Iss 1 (2022)
Flow-induced vibration (FIV) is a common phenomenon observed in internal flows and is frequently encountered in technical systems like process plants, nuclear plants, oil-piping or heat exchangers. Compared to single-phase flows, FIV is more difficul
Externí odkaz:
https://doaj.org/article/084a19607fe64bd29d7d5acab9dbca48
Autor:
Lars Spannan, Elmar Woschke
Publikováno v:
Engineering Applications of Computational Fluid Mechanics, Vol 15, Iss 1, Pp 43-52 (2021)
The precise calculation of drag forces in the technical application of automatic balancing of rotating machinery provides important information about efficiency and stability. With increasing geometric complexity of the design, this poses a challenge
Externí odkaz:
https://doaj.org/article/baffd50ff0dc45b792e2ca3f206307f6
Publikováno v:
Bulletin of the Polish Academy of Sciences: Technical Sciences, Vol 69, Iss 6 (2021)
Squeeze film dampers (SFDs) are commonly used in turbomachinery in order to introduce external damping, thereby reducing rotor vibrations and acoustic emissions. Since SFDs are of similar geometry as hydrodynamic bearings, the REYNOLDS equation of lu
Externí odkaz:
https://doaj.org/article/e36f3acf379b4c159033377d431c8523
Publikováno v:
Bulletin of the Polish Academy of Sciences: Technical Sciences, Vol 69, Iss 6 (2021)
Full-floating ring bearings are state of the art at high speed turbomachinery shafts like in turbochargers. Their main feature is an additional ring between shaft and housing leading to two fluid films in serial arrangement. Analogously, a thrust bea
Externí odkaz:
https://doaj.org/article/6d1d3bcaaefb4a0b8e21bec79de0e445
Publikováno v:
Applied Sciences, Vol 12, Iss 2, p 671 (2022)
The purpose of this paper is to introduce a honeycomb damping plate (HCDP) concept based on the particle damping technique to reduce the low-frequency vibration response of wind turbine generators. The HCDP cells contain granular materials and are mo
Externí odkaz:
https://doaj.org/article/82c8f18d1a574b62b437a808253cda9c
Publikováno v:
Lubricants, Vol 9, Iss 4, p 44 (2021)
The vibration behaviour of turbocharger rotors is influenced by the acting loads as well as by the type and arrangement of the hydrodynamic bearings and their operating condition. Due to the highly non-linear bearing behaviour, lubricant film-induced
Externí odkaz:
https://doaj.org/article/f4f0457065794b42bebc6adbd50a6a17
Publikováno v:
Applied Sciences, Vol 10, Iss 11, p 3715 (2020)
In early design phases of ball typed constant velocity joints (CVJ), which are widely used for the uniform transmission of rotational movement in driveshafts, the knowledge of the interactions between the components is essential. Therefore, a simulat
Externí odkaz:
https://doaj.org/article/271471213ac043bba8fe5234197ca0d8
Autor:
Christoph Rößler, David Schmicker, Oleksii Sherepenko, Thorsten Halle, Markus Körner, Sven Jüttner, Elmar Woschke
Publikováno v:
Metals, Vol 10, Iss 1, p 104 (2020)
The determinination of material properties is an essential step in the simulation of manufacturing processes. For hot deformation processes, consistently assessed Carreau fluid constitutive model derived in prior works by Schmicker et al. might be us
Externí odkaz:
https://doaj.org/article/b197a8d4989142a895375440311354b7
Publikováno v:
GAMM-Mitteilungen. 46