NiTi Alloy Negator Springs for Long-Stroke Constant-Force Shape Memory Actuators: Modeling, Simulation and Testing (Articolo in rivista)

Type

• Prodotto della ricerca (Classe)
• Articolo in rivista (Classe)

Label

• NiTi Alloy Negator Springs for Long-Stroke Constant-Force Shape Memory Actuators: Modeling, Simulation and Testing (Articolo in rivista) (literal)

Anno

• 2014-01-01T00:00:00+01:00 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

• 10.1007/s11665-014-0946-3 (literal)

Alternative label

• Spaggiari A.; Dragoni E.; Tuissi A. (2014)
  NiTi Alloy Negator Springs for Long-Stroke Constant-Force Shape Memory Actuators: Modeling, Simulation and Testing
  in Journal of materials engineering and performance (Print)
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• Spaggiari A.; Dragoni E.; Tuissi A. (literal)

Pagina inizio

• 2412 (literal)

Pagina fine

• 2419 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url

• http://link.springer.com/article/10.1007%2Fs11665-014-0946-3 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 23 (literal)

Rivista

• Journal of materials engineering and performance (Rivista)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali

• 8 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo

• 7 (literal)

Note

• ISI Web of Science (WOS) (literal)
• Scopu (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• 1,2 : Department of Science and Methods for Engineering, University of Modena and Reggio Emilia, Reggio Emilia, Italy / 3 : Institute for Energy and Interphases, National Research Council, Lecco, Italy (literal)

Titolo

• NiTi Alloy Negator Springs for Long-Stroke Constant-Force Shape Memory Actuators: Modeling, Simulation and Testing (literal)

Abstract

• This work aims at the experimental characterization and modeling validation of shape memory alloy (SMA) Negator springs. According to the classic engineering books on springs, a Negator spring is a spiral spring made of strip of metal wound on the flat with an inherent curvature such that, in repose, each coil wraps tightly on its inner neighbor. The main feature of a Negator springs is the nearly constant force displacement behavior in the unwinding of the strip. Moreover the stroke is very long, theoretically infinite, as it depends only on the length of the initial strip. A Negator spring made in SMA is built and experimentally tested to demonstrate the feasibility of this actuator. The shape memory Negator spring behavior can be modeled with an analytical procedure, which is in good agreement with the experimental test and can be used for design purposes. In both cases, the material is modeled as elastic in austenitic range, while an exponential continuum law is used to describe the martensitic behavior. The experimental results confirms the applicability of this kind of geometry to the shape memory alloy actuators, and the analytical model is confirmed to be a powerful design tool to dimension and predict the spring behavior both in martensitic and austenitic range. (literal)

Prodotto di

• X TRANSIZIONE PD-LC Tecnologia e sviluppo di materiali metallici semilavorati, leghe a memoria di forma e di componenti funzionali per applicazioni di energetica e nel settore trasporti (ET.P06.007.001) (Modulo)
• Institute of Condensed Matter Chemistry and Energy Technologies (ICMATE) (Istituto)

Autore CNR

• AUSONIO TUISSI (Persona)

Insieme di parole chiave

• Keywords of "NiTi Alloy Negator Springs for Long-Stroke Constant-Force Shape Memory Actuators: Modeling, Simulation and Testing" (Insieme di parole chiave)

Incoming links:

Prodotto

• Institute of Condensed Matter Chemistry and Energy Technologies (ICMATE) (Istituto)
• X TRANSIZIONE PD-LC Tecnologia e sviluppo di materiali metallici semilavorati, leghe a memoria di forma e di componenti funzionali per applicazioni di energetica e nel settore trasporti (ET.P06.007.001) (Modulo)

Autore CNR di

• AUSONIO TUISSI (Persona)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• Journal of materials engineering and performance (Rivista)

Insieme di parole chiave di

• Keywords of "NiTi Alloy Negator Springs for Long-Stroke Constant-Force Shape Memory Actuators: Modeling, Simulation and Testing" (Insieme di parole chiave)