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

Abdullah, Ermira Junita; Majid, Dayang Laila Abang Abdul; Romli, Fairuz Izzuddin; Gaikwad, Priyanka Subhash; Yuan, Lim G.; Harun, Nurul F.

doi:10.1007/s10999-014-9277-7

Cited by 15 publications

(9 citation statements)

References 22 publications

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“…Other artificial muscles like Dielectric elastomers (DEs) showed a steady-state error of less than 5% [33]. Due to the non-linear behaviour, shape memory alloy (SMA) exhibited a steady-state error of less than 10% with a PID controller [34]. Pneumatic artificial muscles (PAMs) have been applied in rehabilitation equipment [35]- [37].…”

Section: Discussionmentioning

confidence: 99%

Position and Force Control of a Twisted and Coiled Polymeric Actuator

Zheng

2020

IEEE Access

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Twisted and coiled polymer (TCP) actuator has many advantages such as high contraction capability, high work density, low cost materials, and easiness of fabrication, making it promising for applications in biomedical devices, soft robotic, and energy-harvesting equipment. However, convenient and effective control of TCP actuators still remain some challenges. In this paper, we use an accurate straintemperature and force-temperature model of TCP actuators to design a simple and efficient closed-loop PID control system. The validity of the proposed controllers is investigated through numerical simulations and experiments. The results show good control performance with minimum tracking errors which is less than 3% in our work. Such accuracy is ideal for many engineering fields and robotic designs.

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Section: Discussionmentioning

confidence: 99%

Position and Force Control of a Twisted and Coiled Polymeric Actuator

Zheng

2020

IEEE Access

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“…The PID controller was designed and implemented in the experimental setup to control the smart composite plate. Results from the earlier experiments illustrated that the smart structure system that has been designed performed effectively and the strain value of the composite structure can be controlled accurately [12] .…”

Section: Root 45°mentioning

confidence: 99%

“…the performance of a smart structure system composed of composite laminate plate with shape memory alloy (SMA) actuators placed on the surface of plate [12] Six strain gauges placed on the plate surface; Tip 0⁰ , Tip 45⁰ , Mid 0⁰ , Mid 45⁰ , Root 0⁰ and Root 45⁰ . SMA wires were instilled on the plate.…”

Section: An Experimental Test Bench Was Designed To Analyzementioning

confidence: 99%

Effect of Sensor Location of Smart Composite Plate System on Feedback Control Performance

Abdullah

Gaikwad

Majid

et al. 2019

Electron Sci Technol Appl

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The present study is proposing a deflection control of a fiberglass composite plate system using shape memory alloy (SMA) actuators. The aim of this study is to determine the optimal placement of sensor for the feedback smart composite plate system. Strain measurement on the composite plate was chosen as the input variable for the feedback system. The change in strain on the composite plate was different at all locations on the plate during deflection. Thus, six strain gauges were placed at three positions i.e. tip, mid and root of the plate, at angle 0° and 45° in order to measure the change in strain at these locations and determine which is the best location to produce accurate control of the plate. The performance of the plate using these input variables were compared and analyzed by conducting experiments which required the plate to be deflected using the control system. In order to evaluate the performance of the controller under varying conditions, disturbances were also added to the experiments. The disturbances introduced were similar to those faced by aircraft during flight that is wind flow at varying velocities conducted in the wind tunnel. From the experimental results, it was found that the tip of the plate had the highest change in strain value and the control using input from the strain gauge located there produced the best performance as compared to input from strain gauges located at mid and root of the plate. However, in the presence of airflow, it was found that the best control performance was using feedback from the strain gauge located in the middle of the plate.

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“…Flapping wings are usually designed in three classes: Micro Air Vehicle (MAV), Nano Air Vehicle (NAV), and Pico Air Vehicle (PAV) [1][2][3][4][5][6][7]. To perform its mission, a flapping wing needs an actuation mechanism [8,9]. The type of actuation mechanism is dependent on the type of the system [9][10][11].…”

Section: Introductionmentioning

confidence: 99%

“…To perform its mission, a flapping wing needs an actuation mechanism [8,9]. The type of actuation mechanism is dependent on the type of the system [9][10][11]. For example, for flapping wings at MAV scale, several fabrication and actuation methods were applied and most of them are similar to the commercial FWMAVs, such as Delfly [10,12], Slowhawk2 [13], kinkade [14], and Kestrel [15].…”

Section: Introductionmentioning

confidence: 99%

Towards Improved Hybrid Actuation Mechanisms for Flapping Wing Micro Air Vehicles: Analytical and Experimental Investigations

Hassanalian

Abdelkefi

2019

Drones

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A new strategy is proposed in order to effectively design the components of actuation mechanisms for flapping wing micro air vehicles. To this end, the merits and drawbacks of some existing types of conventional flapping actuation mechanisms are first discussed qualitatively. Second, the relationships between the design of flapping wing actuation mechanism and the entrance requirements including the upstroke and downstroke angles and flapping frequency are determined. The effects of the components of the actuation mechanism on the kinematic and kinetic parameters are investigated. It is shown that there are optimum values for different parameters in order to design an efficient mechanism. Considering the optimized features for an actuation mechanism, the design, analysis, and fabrication of a new hybrid actuation mechanism for FWMAV named "Thunder I" with fourteen components consisting of two six-bar mechanisms are performed. The results show that this designed hybrid actuation mechanism has high symmetrical flapping motion with hinged connections for all components. The proposed methodology for the modeling and fabrication of Thunder I's actuation mechanism can be utilized as guidelines to design efficient FWMAVs actuation mechanisms.Drones 2019, 3, 73 2 of 21 amplification. This mechanism could provide the hovering capability for a small size flapping wing NAV. As for flapping wing at PAV scale, Wood et al. [22] have developed modern flapping wings which use piezoelectric actuators to generate flapping motion. Selecting the appropriate actuator is considered as an important part for designing effective flapping wing. Depending on the type of the system, different actuators can be used to perform the mission including electric motors, piezoelectric elements, solenoids, and Shape Memory Alloys (SMA) wires [23][24][25][26][27].Research on flapping wing MAVs has led to a variety of actuation mechanisms which are designed for flapping motion. These actuation mechanisms are four-bar, five-bar, and six-bar mechanisms. As for the four-bar actuation mechanism, five types have been used, as shown in Figure 1 [28-30].Drones 2019, 3, x FOR PEER REVIEW 2 of 20 mechanism for motion amplification. This mechanism could provide the hovering capability for a small size flapping wing NAV. As for flapping wing at PAV scale, Wood et al. [22] have developed modern flapping wings which use piezoelectric actuators to generate flapping motion. Selecting the appropriate actuator is considered as an important part for designing effective flapping wing. Depending on the type of the system, different actuators can be used to perform the mission including electric motors, piezoelectric elements, solenoids, and Shape Memory Alloys (SMA) wires [23][24][25][26][27].Research on flapping wing MAVs has led to a variety of actuation mechanisms which are designed for flapping motion. These actuation mechanisms are four-bar, five-bar, and six-bar mechanisms. As for the four-bar actuation mechanism, five types have been used, as shown in Figure 1 [2...

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

Cited by 15 publications

References 22 publications

Position and Force Control of a Twisted and Coiled Polymeric Actuator

Position and Force Control of a Twisted and Coiled Polymeric Actuator

Effect of Sensor Location of Smart Composite Plate System on Feedback Control Performance

Towards Improved Hybrid Actuation Mechanisms for Flapping Wing Micro Air Vehicles: Analytical and Experimental Investigations

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