A driving strategy of shape memory alloy wires with electric resistance modeled by logistic function for power consumption reduction

Guan, Jing-Han; Pei, Yong-Chen; Wu, Ji-Tuo

doi:10.1016/j.ymssp.2021.107839

Cited by 18 publications

(6 citation statements)

References 38 publications

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“…1 demonstrates the resistance and strain of the SMA wire during thermal cycling pretraining. The resistance determined whether the SMA wire was fully activated to prevent overheating [17]. After 60 cycles, the maximum strain was 3.5%, and the resistance in the 100% austenite phase was 33.86 Ω.…”

Section: A Preparation Of the Sma Wirementioning

confidence: 99%

“…Ohm's Law was used to calculate resistance. Signal calibration details can be found in [17]. In step II, RPTD detected the phase transition points PAs and PMf in the resistance sequence.…”

Section: Data Preparationmentioning

confidence: 99%

“…It is found that the resistivities of different crystal phases are different. During the thermal cycle, the resistance exhibits a wave-like change, and the peaks and valleys correspond to the critical points of the phase transition [17]. The method of determining the progress of the phase transition based on the resistance has realized self-sensing.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A Machine Learning Empowered Shape Memory Alloy Gripper With Displacement-Force-Stiffness Self-Sensing

Pei

Wang

et al. 2023

IEEE Trans. Ind. Electron.

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Section: A Preparation Of the Sma Wirementioning

confidence: 99%

“…Ohm's Law was used to calculate resistance. Signal calibration details can be found in [17]. In step II, RPTD detected the phase transition points PAs and PMf in the resistance sequence.…”

Section: Data Preparationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A Machine Learning Empowered Shape Memory Alloy Gripper With Displacement-Force-Stiffness Self-Sensing

Pei

Wang

et al. 2023

IEEE Trans. Ind. Electron.

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“…Input measurand causes change in the resistance of the SMA wire that imbalances the Wheatstone bridge creating a voltage output as represented in equation (5). Change in resistance of the SMA wire can be derived from equation (3) as stated by [31], as represented in equation (6),…”

Section: Inherent Resonant Sensing By the Self-sensing Sma Wirementioning

confidence: 99%

Duo features of shape memory wire for resonant force sensing

G¹,

Kaliaperumal²,

M³

et al. 2022

Smart Mater. Struct.

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The design and demonstration of a new version of the force measurement system based on the resonance principle by involving shape memory alloy (SMA) is presented. The sensor design enables an electromechanically functional resonator comprising the cantilever beam as the vibratory structural element and the Joule heated SMA as an actuating element. The actuation frequency of the SMA wire is improved up to 5.5 Hz by the optimized activation parameters and an appropriate biasing element. The choice of design attributes of the sensing module is made based on the analysis of the associated technical parameters with different dimensions of the constituents of the sensing assembly. The sensing module that adopts the least stiff configuration by the series arrangement of the active SMA and passive elastic cantilever element is modeled mathematically. The dual/twin phenomena of the SMA wire featured by both, actuation that creates resonance in the structure and self-sensing that senses the resonance state, is deployed. The sensor possesses static sensing capabilities and detects force in the range of 0.785 N to 2.45 N and this scheme of force measurement could be a stand-alone unit, besides is adaptable as an application-specific sensor in the analysis of large flexible structures.

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“…A thermal deformation-driven artificial muscle mainly includes the phase change type and the fiber type. It can produce a large driving force and has a small volume, but it also has a slow response rate, low energy conversion efficiency, and obvious hysteresis [8,9]. Electric deformation actuators mainly include dielectric elastomer actuators (DEAs) [10] and ion-exchange polymer-metal composites (IPMCs) [11].…”

Section: Introductionmentioning

confidence: 99%

Design and Control of a Nonlinear Series Elastic Cable Actuator Based on the Hill Muscle Model

Zou²,

et al. 2022

Actuators

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The bionic design of muscles is a research hotspot at present. Many researchers have designed bionic elastic actuators based on the Hill muscle model, and most of them include an active contraction element, passive contraction element and series elastic element, but they need more parametric design of mechanical structure and control under the guidance of Hill muscle model. In this research, a nonlinear series elastic cable actuating mechanism is designed in which the parameters of the elastic mechanism are optimized based on the Hill muscle model to fit the nonlinear passive elasticity of a muscle. Through the force–position relationship determined by the Hill muscle model, the output force and position of a nonlinear series elastic cable actuator are controlled to simulate the active contraction performance of a muscle. The experiments show that the proposed design and control method can make the nonlinear cable actuator have good muscle-like output force–displacement characteristics.

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A driving strategy of shape memory alloy wires with electric resistance modeled by logistic function for power consumption reduction

Cited by 18 publications

References 38 publications

A Machine Learning Empowered Shape Memory Alloy Gripper With Displacement-Force-Stiffness Self-Sensing

A Machine Learning Empowered Shape Memory Alloy Gripper With Displacement-Force-Stiffness Self-Sensing

Duo features of shape memory wire for resonant force sensing

Design and Control of a Nonlinear Series Elastic Cable Actuator Based on the Hill Muscle Model

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