A spray-cooling based antagonistic SMA actuator (SCASA) with low resistance consumption and high driving frequency

IF 3.7 3区材料科学 Q1 INSTRUMENTS & INSTRUMENTATION

Smart Materials and Structures Pub Date : 2024-07-09 DOI:10.1088/1361-665x/ad5b31

Lei Zhang, Hu Jin, Yiming Ouyang, Wenlong Cheng, Weihua Li and Shiwu Zhang

{"title":"A spray-cooling based antagonistic SMA actuator (SCASA) with low resistance consumption and high driving frequency","authors":"Lei Zhang, Hu Jin, Yiming Ouyang, Wenlong Cheng, Weihua Li and Shiwu Zhang","doi":"10.1088/1361-665x/ad5b31","DOIUrl":null,"url":null,"abstract":"Owing to the large strain output and high power-to-weight ratio, using temperature-induced shape memory alloy (SMA) springs in the form of antagonistic actuators offers the opportunity to develop simple, lightweight, and multi-mode robotic systems. Currently, the capabilities and deep application of these robotic systems are hindered by the relatively large resistance consumption and limited driving frequency of the antagonistic SMA actuators, primarily attributed to the cooling rate of SMA. In this paper, a spray-cooling based antagonistic SMA actuator (SCASA) was proposed, aiming to address the existing challenges in antagonistic SMA actuators. Theoretical modeling of the SCASA was comprehensively investigated. Experimental findings highlight the superior cooling efficacy of the spray-cooling method, attaining a cooling rate surpassing 100 °C per second for a single SMA spring. Using the spray-cooling based method, the driving frequency of a single SMA spring is approximately twice that of the forced-air cooling method. Experimental results also demonstrate the superior performance of the SCASA using the spray-cooling method, resulting in a reduction of approximately 50% in resistance consumption and an increase of approximately 40% in driving frequency compared to the forced-air method. This work elucidates the promising application prospects of the spray-cooling method in SMA actuators.","PeriodicalId":21656,"journal":{"name":"Smart Materials and Structures","volume":"15 1","pages":""},"PeriodicalIF":3.7000,"publicationDate":"2024-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Smart Materials and Structures","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1088/1361-665x/ad5b31","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"INSTRUMENTS & INSTRUMENTATION","Score":null,"Total":0}

引用次数: 0

Abstract

Owing to the large strain output and high power-to-weight ratio, using temperature-induced shape memory alloy (SMA) springs in the form of antagonistic actuators offers the opportunity to develop simple, lightweight, and multi-mode robotic systems. Currently, the capabilities and deep application of these robotic systems are hindered by the relatively large resistance consumption and limited driving frequency of the antagonistic SMA actuators, primarily attributed to the cooling rate of SMA. In this paper, a spray-cooling based antagonistic SMA actuator (SCASA) was proposed, aiming to address the existing challenges in antagonistic SMA actuators. Theoretical modeling of the SCASA was comprehensively investigated. Experimental findings highlight the superior cooling efficacy of the spray-cooling method, attaining a cooling rate surpassing 100 °C per second for a single SMA spring. Using the spray-cooling based method, the driving frequency of a single SMA spring is approximately twice that of the forced-air cooling method. Experimental results also demonstrate the superior performance of the SCASA using the spray-cooling method, resulting in a reduction of approximately 50% in resistance consumption and an increase of approximately 40% in driving frequency compared to the forced-air method. This work elucidates the promising application prospects of the spray-cooling method in SMA actuators.

查看原文本刊更多论文

基于喷雾冷却技术的低电阻消耗、高驱动频率的拮抗式 SMA 执行器（SCASA）

由于应变输出大、功率重量比高，以拮抗致动器形式使用温度诱导形状记忆合金（SMA）弹簧为开发简单、轻便和多模式机器人系统提供了机会。目前，这些机器人系统的能力和深入应用受到拮抗型 SMA 执行器相对较大的阻力消耗和有限的驱动频率的阻碍，这主要归因于 SMA 的冷却速度。本文提出了一种基于喷雾冷却的拮抗式 SMA 执行器（SCASA），旨在解决目前拮抗式 SMA 执行器所面临的挑战。本文全面研究了 SCASA 的理论建模。实验结果凸显了喷雾冷却方法的卓越冷却效果，单根 SMA 弹簧的冷却速度超过了每秒 100 °C。使用基于喷雾冷却的方法，单根 SMA 弹簧的驱动频率约为强制空气冷却方法的两倍。实验结果还表明，采用喷雾冷却方法的 SCASA 性能优越，与强制空气冷却方法相比，电阻消耗减少了约 50%，驱动频率提高了约 40%。这项工作阐明了喷雾冷却法在 SMA 执行器中的广阔应用前景。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Smart Materials and Structures 工程技术-材料科学：综合

CiteScore

7.50

自引率

12.20%

发文量

317

审稿时长

3 months

期刊介绍： Smart Materials and Structures (SMS) is a multi-disciplinary engineering journal that explores the creation and utilization of novel forms of transduction. It is a leading journal in the area of smart materials and structures, publishing the most important results from different regions of the world, largely from Asia, Europe and North America. The results may be as disparate as the development of new materials and active composite systems, derived using theoretical predictions to complex structural systems, which generate new capabilities by incorporating enabling new smart material transducers. The theoretical predictions are usually accompanied with experimental verification, characterizing the performance of new structures and devices. These systems are examined from the nanoscale to the macroscopic. SMS has a Board of Associate Editors who are specialists in a multitude of areas, ensuring that reviews are fast, fair and performed by experts in all sub-disciplines of smart materials, systems and structures. A smart material is defined as any material that is capable of being controlled such that its response and properties change under a stimulus. A smart structure or system is capable of reacting to stimuli or the environment in a prescribed manner. SMS is committed to understanding, expanding and dissemination of knowledge in this subject matter.