Hwang, Donghyun Ihn, Yong Seok Kim, Keehoon 2024-01-19T23:00:40Z 2024-01-19T23:00:40Z 2021-09-03 2018-05 0278-0046 https://pubs.kist.re.kr/handle/201004/121422 In this study, we develop a rotary motor using embedded shape memory alloy (SMA) wires, with the aim of realizing a novel compact and modular motor that can generate high-torque bidirectional continuous rotation. Thus, we focus on designing the motion transmission mechanism and torque amplifier of the motor. The designedmotion transmission mechanism that functions to convert the contraction/expansion of the SMA wires to rotational motion enables the motor to generate continuous rotation with relatively short-length SMA wires. Additionally, a double-disc cycloidal speed reducer designed as the torque amplifier allows the motor to reliably generate high torque with a compact structure due to its simple configuration, size variability, and torque amplification functionality. One of the advantages of the motor is that an actuating module could be additionally incorporated into the motor to achieve higher torque. In this case, the overall size and weight of the motor are marginally increased although the output torque capacity almost doubles. Hence, the energy density of the motor significantly increases. The study describes the main concept, operating principle, design, and experimental results of the output torque capacity, positioning characteristics, and frequency response of the proposed motor. English IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC DESIGN Compact Modular Cycloidal Motor With Embedded Shape Memory Alloy Wires Article 10.1109/TIE.2017.2764839 1 IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, v.65, no.5, pp.4028 - 4038 IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS 65 5 4028 4038 scie scopus 000422930000038 2-s2.0-85041333793 Automation & Control Systems Engineering, Electrical & Electronic Instruments & Instrumentation Automation & Control Systems Engineering Instruments & Instrumentation Article DESIGN Cycloidal motor rotary actuator shape memory alloy (SMA) smart actuator transmission