Szczegóły publikacji
Opis bibliograficzny
Magnetic Shape Memory Alloys modelling and pneumatic applications / FLAGA Stanisław, Nowak Amadeusz, Stefański Frederik, Minorowicz Bartosz // Diffusion and Defect Data – Solid State Data. Part B, Solid State Phenomena ; ISSN 1012-0394. — 2016 — vol. 248, s. 235–242. — Bibliogr. s. 241–242, Abstr. — ISBN: 978-3-03835-769-8; e-ISBN: 978-3-0357-0260-6. — Publikacja dostępna online od: 2016-03-21. — 12th conference on Active noise and vibration control methods (MARDiH'2015), June 8–11, 2015, Kraków, Poland
Autorzy (4)
- AGHFlaga Stanisław
- Nowak Amadeusz
- Stefański Frederik
- Minorowicz Bartosz
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 96953 |
|---|---|
| Data dodania do BaDAP | 2016-03-24 |
| Tekst źródłowy | URL |
| DOI | 10.4028/www.scientific.net/SSP.248.235 |
| Rok publikacji | 2016 |
| Typ publikacji | referat w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Diffusion and Defect Data. Solid State Data, Part B. Solid State Phenomena |
Abstract
Very generally material science could be divided into two groups: scientists who try to invent new materials or improve existing ones and those who work on finding the best applications for the modern materials. Among them there is group named “smart materials” or “active materials”, which have ability to change theirs properties according to the external stimulation. One of the relatively most recent smart material is magnetic shape memory alloy, MSMA in abbreviation. The authors of the article focus on testing samples of this material and try to adapt them to use in fluid devices. The paper mentions about some most interesting valves’ designs equipped with smart materials and summaries the previous MSMA research of the authors. It begins with literature overview of smart material applications in pneumatic or hydraulic valves. There is only one example of MSMA application in valve, therefore the overview concerns mainly the use of piezoelectric, thermal shape memory alloys and giant magnetostrictive materials. Next section describes general properties of the magnetic shape memory alloys and underlines the differences between more widely known Thermal Shape Memory Alloys and MSMA materials. One of the most important property is wide, nonsymmetrical hysteresis in static characteristics of the material, which can be seen as advantage or disadvantage, depending on the application. The material preserves its shape until perpendicular magnetic field or additional force appear. The authors mention about modeling MSMA hysteresis aspect. Three different hysteresis models were briefly described: Generalized Prandtl-Ischlinski, Preisach and Krasnosel'skii-Pokrovskii. The last section treats about the current MSMA based valve design concept. It assumes usage of two identical pieces of MSMA materials and energize them oppositely. There is flapper mounted between MSMA samples, which displacement depends on the MSMA elongations. This actuator type is called “push-push” type. Lack of the return spring result in remaining of the flapper in its final position after decreasing of the supply current. The advantage of the solution could be lowering energy consumption of the valve, when the valve setting changes relatively rare during its work. In the future, the presented hysteresis models could improve the work of such MSMA based valve.
