The shape control of a composite beam with embedded shape memory alloy wire actuators

Choi, Sup; Lee, Jung Ju

doi:10.1088/0964-1726/7/6/004

Cited by 34 publications

(18 citation statements)

References 24 publications

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“…Shape memory alloy can be used in shape control due to its high recovery forces and large displacement (Choi and Lee 1998;Oh et al 2001;Yang et al 2006). In the experimental and analytical studies carried out by Choi and Lee, it was shown that the SMA actuators were able to modify the deformed shape of composite (Oh et al 2001).…”

Section: Shape Memory Alloy Actuatormentioning

confidence: 99%

Active control of strain in a composite plate using shape memory alloy actuators

Abdullah

Majid

Romli

et al. 2014

Int J Mech Mater Des

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The present study aims to design an experimental test bench to analyze and control a smart structure system composed of a woven fiberglass laminate plate with shape memory alloy (SMA) actuators instilled on the surface. The aim of this design is to accurately augment the strain of the composite plate. Finite element analysis was employed to model the composite structure and determine the placement of the SMA actuators in order to produce the desired structural response efficiently with minimum power consumption. Due to the nonlinear behavior of the SMA actuator, it will be critical to incorporate a feedback control system that is able to accurately morph the structure by changing the strain of the composite structure. A Proportional-Integral-Derivative (PID) controller was designed to improve its tracking performance. Simulation on the control system showed that the PID controller produced acceptable response and managed to reduce steady state error for different types of input. The PID controller was then implemented in the experimental setup to control the smart composite plate. Results from the experiment illustrates that the smart structure system that has been designed performed effectively and the strain value of the composite structure can be controlled accurately.

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Section: Shape Memory Alloy Actuatormentioning

confidence: 99%

Active control of strain in a composite plate using shape memory alloy actuators

Abdullah

Majid

Romli

et al. 2014

Int J Mech Mater Des

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“…Choi and Lee [1] studied the response of SMA wire actuators embedded in a composite beam. They experimentally and analytically studied the shape control of a composite beam embedded with SMA wires eccentrically, when placed under axial compressive loading conditions.…”

Section: Introductionmentioning

confidence: 99%

“…Song and Agrawal [2] used a robust closed-loop controller to actively control the beam tip displacement for active shape control of SMA wire-embedded composite beam. While Choi and Lee [1] used a regular glass epoxy composite for embedding the SMA wires, Song et al [2] used a composite beam which had an Aluminum honey comb core with a glass fiber reinforced polymer composite backing plate and with a low-modulus elastomeric top plate attached to the honey comb core. Wen and Lagoudas [3] observed that if the SMA wires are externally attached to a beam then larger deformation can be achieved, as compared to the case of embedded SMA wires.…”

Section: Introductionmentioning

confidence: 99%

Optimal actuation of SMA-wire network for adaptive shape control of a space antenna system

Chawla

Bhattacharya

Munjal

2014

2014 13th International Conference on Control Automation Robotics &Amp; Vision (ICARCV)

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This paper presents a novel technique adaptive shape control of a parabolic space antenna with the help of an optimized SMA-wire network. The work uses genetic algorithm NSGA-II for solution of the problem, which has minimization of energy input and minimization of error in desired and obtained shape as the two conflicting objectives. We combine finite element analysis with well-established temperature-resistance models of SMA wire and use them to obtain the optimal network of SMA wire along with the actuation temperature for each wire in the network.

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“…Aboudi [10] developed a microstructural model that encompasses both local and global effects, to analyze the behavior of resin-matrix and metal-matrix composites with embedded shape memory alloy (SMA) fibers. Choi and Lee [11] performed analytical and experimental studies on shape control of glass/epoxy composite beams with embedded SMA wire actuators. Song et al [12] investigated active position control of honeycomb-type composite beams with SMA wires embedded in one of the face sheets.…”

Section: Introduction Imentioning

confidence: 99%

Micromechanics of Smart Composite Plates with Periodically Embedded Actuators and Rapidly Varying Thickness

Kalamkarov

Georgiades²,

Challagulla³

et al. 2006

Journal of Thermoplastic Composite Materials

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Asymptotic homogenization models for smart composite plates with periodically arranged embedded actuators and rapidly varying thickness are derived. The formulated models enable the determination of both local fields and effective elastic, actuation, thermal expansion, and hygroscopic expansion coefficients from three-dimensional local unit cell problems. The actuation coefficients, for example piezoelectric or magnetostrictive, characterize the intrinsic transducer nature of active smart materials that can be used to induce strains and stresses in a coordinated fashion. The theory is illustrated by means of examples pertaining to thin smart composite plates of uniform thickness, rib-and waferreinforced smart composite structures, and sandwich smart composite plates with honeycomb filler.

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The shape control of a composite beam with embedded shape memory alloy wire actuators

Cited by 34 publications

References 24 publications

Active control of strain in a composite plate using shape memory alloy actuators

Active control of strain in a composite plate using shape memory alloy actuators

Optimal actuation of SMA-wire network for adaptive shape control of a space antenna system

Micromechanics of Smart Composite Plates with Periodically Embedded Actuators and Rapidly Varying Thickness

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