- Tytuł:
- A study on permanent magnet topologies for hybrid bearings for medical drives applied in Ventricular Assist Devices
- Autorzy:
-
Pohlmann, A.
Hameyer, K. - Powiązania:
- https://bibliotekanauki.pl/articles/140406.pdf
- Data publikacji:
- 2011
- Wydawca:
- Polska Akademia Nauk. Czytelnia Czasopism PAN
- Tematy:
-
urządzenie wspomagające komorę
metoda elementów skończonych
łożysko magnetyczne
ventricular assist device
VAD
finite element method
FEM
magnetic bearings - Opis:
- In industrialized countries cardiovascular diseases are the major cause of death. The last clinical therapy option for some patients, suffering from terminal heart diseases, is donor heart transplantation. As the available number of donor organs is decreasing, many patients die while waiting for a transplant. For this reason Ventricular Assist Devices (VADs), which can mechanically support the human heart to achieve a sufficient perfusion of the body, are under development. For an implantable VAD, design constraints have to be deduced from the physiological conditions in the human body. In case of a VAD drive, these constraints are for example dimensions, electric losses, which might result in an overheating of blood, and a long durability. Therefore a hybrid permanent magnet hydrodynamic bearing is designed in this paper, which works passively and contactless. Based on Finite Element simulations of magnetic fields, various permanent magnet topologies are studied in terms of axial forces and stiffness.
- Źródło:
-
Archives of Electrical Engineering; 2011, 60, 3; 371-380
1427-4221
2300-2506 - Pojawia się w:
- Archives of Electrical Engineering
- Dostawca treści:
- Biblioteka Nauki
Artykuł