Modeling, control and experimental validation of a novel actuator based on shape memory alloys

Romano, Roberto; Tannuri, Eduardo A.

doi:10.1016/j.mechatronics.2009.03.007

Cited by 68 publications

(60 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In [2] it was shown that we can describe this based in the actuator geometry and the mechanical properties of the nitinol wires. Eq.…”

Section: Mathematical Modelingmentioning

confidence: 99%

“…Starting points for the optimization algorithm are obtained either from available literature (as in the case of the martensitic fractions, obtained in [2]) or from broadly available theoretical calculations (for heat transfer and inertial parameters). Bounding is also given by datasheets and values available in literature [2,14].…”

Section: Identificationmentioning

confidence: 99%

“…Even though the heating process can be quick (it is usually based on Joule effect), most of its dynamic performance is limited by the cooling process, which is based on (relatively low speed) heat conduction/convection. In order to enhance the cooling process response, Romano and Tannuri proposed in [2] a system using Seebeck-Peltier effect tablets, enhancing this configuration's dynamic response in their later work [3] by assembling the actuator in an antagonistic setup. This architecture presents an advantage over single wire setups, as the reverse actuation does not rely purely on the (usually slow) wire cooling.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A sliding mode torque and position controller for an antagonistic SMA actuator

Ianagui

Tannuri

2015

Mechatronics

Self Cite

View full text Add to dashboard Cite

“…In [2] it was shown that we can describe this based in the actuator geometry and the mechanical properties of the nitinol wires. Eq.…”

Section: Mathematical Modelingmentioning

confidence: 99%

Section: Identificationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A sliding mode torque and position controller for an antagonistic SMA actuator

Ianagui

Tannuri

2015

Mechatronics

Self Cite

View full text Add to dashboard Cite

“…[8], the equations of the mechanical properties of shape memory alloy are obtained from a model of layers in the phase austenite (high temperature), the spring becomes elastic and thus for ξ = 0, the relationship between stress and strain is given in Eq. …”

Section: (2)mentioning

confidence: 99%

Analytical Solutions of the Equations One Mechanical Thermal Model of a Helical Spring NiTi for Use in Heat Engine

Monteiro¹,

Roberto²,

Rolim³

et al. 2014

JMEA

View full text Add to dashboard Cite

Shape memory effect is capability of certain materials to recover its original shape after an apparently permanent deformation. The NiTi alloy of the composition is approximately equiatomic and it is the materials that exhibit the best characteristics for application of these properties, especially in the biomedical area, because of their excellent biocompatibility as: in the manufacture of medical and dental instruments, orthodontic wires, orthopedic materials, guide wires, stents, filters and components to realize the less invasive surgeries. In other areas, they are used for confections of electronic keys, spectacle frames, application in controllers, junction of pipes and electronic connectors among others. New research topics involving the application of these alloys super-elasticity are also known as pseudo elasticity. This event has an isothermal nature and involves the storage of potential energy in the shape memory effect and super-elasticity. In this context, this work falls within the scope of use of the technologies being an example of the work undertaken, in the course Graduate of Federal University of Pernambuco in skills in these technologies. It will present the results of a heat engine which engine element is a helical spring made of a NiTi alloy equiatomic with memory effect reversibly. The spring is triggered by a hot source (~ 373.15 K) and a cold source (273.15 K). The machine is capable of producing a reciprocating oscillating between the two sources. Heat equations and the equations that describe the dynamic behavior of the spring were developed. Through the development of dynamic equations, it can determine the minimum mass for the motion of the machine, as well as the instantaneous and average power and overall efficiency. You can check the functionality of the machine by way of the inclination angle of the propeller and the coefficient of static friction. Among the main results, it was observed that the overall performance of the machine compared to the machines of this category showed the feasibility of the project.

show abstract

“…In [12] feedforward scheme is also used but the hysteretic behaviour is described by a Duhem differential hysteresis model. In [13,14] a feedforward loop is combined with sliding mode control to obtain robustness, the feedforward path is respectively given by neural network and by a physical model. An H ∞ loop based on physics modelling is design in [15].…”

Section: Introductionmentioning

confidence: 99%

A new control strategy for shape memory alloys actuators

Gédouin

Join

Delaleau

et al. 2009

ESOMAT 2009 - 8th European Symposium on Martensitic Transformations

View full text Add to dashboard Cite

Abstract. Shape memory alloys (SMA) are more and more integrated in engineering applications. These materials with their shape memory effect permit to simplify mechanism and to reduce the size of actuators. SMA parts can easily be activated by Joule effect but their modelling and consequently their control remains difficult, it is principally due to their hysteretic thermomechanical behaviour. Another difficulty is that the characteristics of the material are timevarying, especially during cyclic loadings. So, most of successful control strategy applied to SMA actuator are particularly heavy and used the Preisach model or neural networks to model the hysteretic behaviour of these material but this kind of models are difficult to identify and to use in real time. That is why this study deals with an application of the new framework of model-free control and restricted model control applied to a SMA spring based actuator. This control strategy is based on new results on fast derivative s estimation of noisy signals, its main advantages are: its simplicity, its robustness and the fact that it is easy to compute. Experimental results and comparisons with PID control are exposed that demonstrate the efficiency of this new control strategy despite thermal perturbations.

show abstract

Modeling, control and experimental validation of a novel actuator based on shape memory alloys

Cited by 68 publications

References 7 publications

A sliding mode torque and position controller for an antagonistic SMA actuator

A sliding mode torque and position controller for an antagonistic SMA actuator

Analytical Solutions of the Equations One Mechanical Thermal Model of a Helical Spring NiTi for Use in Heat Engine

A new control strategy for shape memory alloys actuators

Contact Info

Product

Resources

About