An experimental investigation on structural design of shape memory polymers

N Roudbarian, M Baniasadi, M Ansari… - Smart Materials and …, 2019 - iopscience.iop.org
This paper presents an experimental investigation on the effect of structural (geometrical)
design on the thermomechanical behavior of shape memory polymers. Three beams with …

Modeling and control analysis of an arc-shaped SMA actuator using PID, sliding and integral sliding mode controllers

AM Khan, Y Kim, B Shin, MH Moghadam… - Sensors And Actuators A …, 2022 - Elsevier
This paper presents approximate model-based sliding and integral control for an arc-shaped
Shape Memory Alloy (SMA) actuator. This actuator is fabricated by using a SMA wire which …

Dexterous robotic hand based on rotational shape memory alloy actuator-joints

H Baek, AM Khan, V Bijalwan, S Jeon… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
In this study, we present a novel Shape Memory Alloy (SMA)-actuated robotic hand which
can provide a higher level of dexterity and compliance. The mechanical structure and …

Backstepping control of novel arc-shaped SMA actuator

AM Khan, B Shin, M Usman, Y Kim - Microsystem Technologies, 2022 - Springer
In this paper, we present modeling and control of a novel arc-shaped Shape Memory Alloy
(SMA) actuator. The arc-shaped SMA actuator is developed to provide rotational motion with …

Adaptive predictive control of a novel shape memory alloy rod actuator

SF Hoseini… - Proceedings of the …, 2021 - journals.sagepub.com
Shape memory alloys are among the highly applicable smart materials that have recently
appealed to scientists from various fields of study. In this article, a novel shape memory alloy …

Tracking control of an SMA-driven actuator with rate-dependent behavior using an inverse model of hysteresis

S Shakiba, A Yousefi-Koma, M Ayati - Journal of the Brazilian Society of …, 2020 - Springer
Hysteresis is a nonlinear phenomenon which may cause inaccuracies and delay in control
applications. Shape memory alloys (SMAs) have an asymmetric saturated hysteresis. In …

Robot joint module based on universal joint configuration driven by SMA wires

BH Wang, YC Pei, JT Wu, JH Guan… - Proceedings of the …, 2024 - journals.sagepub.com
Modular robots can adapt to different production needs and working conditions. However,
the complexity of structures and the choice of driving modes limit the development of …

Experimental analysis of a prestressed mechanism with multi-antagonistic and hysteretic SMA actuation

R Boufayed, F Chapelle, B Blaysat… - Journal of Intelligent …, 2024 - journals.sagepub.com
This paper presents the experimental analysis of a multi-antagonistic actuation system
involving nickel-titanium (NiTi) shape memory alloy (SMA) wires that can be thermally …

Adaptive neural network controller for the rotating SMA actuator

AM Khan, V Bijalwan, B Shin, Y Kim - Sensors and Actuators A: Physical, 2024 - Elsevier
In this research, we present a new data-driven Adaptive Neural Network (ANN) controller
designed for a unique arc-shaped Shape Memory Alloy (SMA) actuator. The actuator …

Improvement of tracking performance of SMA-actuated rotary actuator via thermocouple delay compensation using adaptive predictor

P Naseri, MR Zakerzadeh… - Journal of Intelligent …, 2024 - journals.sagepub.com
This paper investigates the impact of bounded and unknown delay of a J-type thermocouple
sensor on controlling a Shape Memory Alloy (SMA) actuated rotary actuator. To compensate …