The present study aims at developing a new Shape Memory Alloy (SMA) autonomous torsion actuator that exhibits Two-Way reversible memory effect Assisted by SuperElasticity. developed noted hereafter TWASE is composed single NiTi compact component having two distinct SMAs parts on one axis: SuperElastic part (length LSE) and Effect LSME). proposed design ensures twisting the when heated, this act...

As a heat-triggered smart material, shape memory alloy (SMA) has been widely used in soft actuators and bioinspired robots. Coupled SMA wires are commonly chosen to achieve reversible actuation, while segment assembling methods the main solutions for complicated bending modes. To address this, dual-stimulus responsive SMA/PDMS were proposed this research. exerted by electrical current, showed p...

Control of soft robotic manipulators remains a challenge for designs with advanced capabilities and novel actuation. Two significant limitations are multi-axis, three-dimensional motion bodies alongside actuator dynamics constraints, both which present in shape-memory-alloy (SMA)-powered robots. This article addresses concerns robust feedback control scheme, demonstrating state tracking robot m...

abstract: this paper presents dynamic modelling and control of a linear prismatic series of elastic actuator. the capability of generating large torques is why this actuator is increasingly used in human-assistive robotic systems. due to having human in the loop, the actuator requires precise control. a fractional pid controller known for its improved performance is used for the control, due to...

This article presents the formulation and application of a reduced-order thermomechanical finite strain shape memory alloy (SMA)-based microactuator model for switching devices under thermal loading by Joule heating. The is cast in generalized standard material framework with an extension thermomechanics. proper orthogonal decomposition (POD) utilized capturing reduced basis from precomputed el...