Nader Abdelwahab Ahmed Mansour
Asst. Professor
Bidirectional rotating actuators using shape memory alloy wires
Sensors And Actuators A: Physical • 2019
Publication Information
Authors
Youngshik Kim; Taesoo Jang; Hema Gurung; Nade A. Mansour; Bongju Ryu; Buhyun Shin
Keywords
Not Available
Journal
Sensors And Actuators A: Physical
Publisher
Not Available
Volume
295
Issue
Not Available
Pages
Not Available
publication.type
International
Paper Link
Open Link
Supplementary Materials
Not Available
Abstract
In this work, novel Shape Memory Alloy (SMA)-based actuators are proposed to provide angular displacements in both clockwise and counter-clockwise directions with compliance. A bidirectional SMA rotating actuator is fabricated using a rotating frame and two SMA wire-based actuating units similar to human skeletal muscle systems without any additional complicated rotational driving mechanism. These actuating units are activated independently to provide bidirectional rotary motions by using sequentially coordinated electrical inputs. The mechanical, thermal, and electrical properties of the bidirectional SMA rotating actuator are also characterized experimentally. The design and manipulation of the proposed actuator are experimentally verified with simple open-loop and closed-loop control strategies.
