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This paper presents a novel rotary actuator's design concept based on shape memory alloy (SMA) springs and permanent magnet systems. The proposed actuator is so designed that it can operate even in a vacuum. The presence of permanent magnets leads to efficient and quick rotation motion without any direct contact between the actuation system and passive disc rotation. The presence of a smart actuator (SMA) system helps build a lightweight actuator. The presented actuator converts the translational motion of the SMA springs in the bi-directional rotation of the passive disc. The contraction of the SMA could directly control the rate of rotation.

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Design and Development of a Novel Rotary Actuator Based on Shape Memory Alloy and Permanent Magnet System

  • 会议论文

  • 发表日期：

    2025年

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  • Deep Singh,
  • Rutupurna Choudhury,
  • Yogesh Singh,
  • Santhakumar Mohan

摘要

This paper presents a novel rotary actuator's design concept based on shape memory alloy (SMA) springs and permanent magnet systems. The proposed actuator is so designed that it can operate even in a vacuum. The presence of permanent magnets leads to efficient and quick rotation motion without any direct contact between the actuation system and passive disc rotation. The presence of a smart actuator (SMA) system helps build a lightweight actuator. The presented actuator converts the translational motion of the SMA springs in the bi-directional rotation of the passive disc. The contraction of the SMA could directly control the rate of rotation.