柔性薄膜复合形状记忆合金弹簧驱动器  

Flexible Film Composite Shape Memory Alloy Spring Actuator

作　　者：钱国明 朱孔军[2] 李亚辉 严康 王婧[2] 刘劲松[2,3] 黄卫清[2,4] QIAN Guoming;ZHU Kongjun;LI Yahui;YAN Kang;WANG Jing;LIU Jinsong;HUANG Weiqing(School of Transportation Engineering,Jiangsu Shipping College Nantong,226010,China;State Key Laboratory of Mechanics and Control of Mechanical Structures,Nanjing University of Aeronautics and Astronautics Nanjing,210016,China;College of Materials Science and Technology,Nanjing University of Aeronautics and Astronautics Nanjing,211106,China;School of Mechanical and Electric Engineering,Guangzhou University Guangzhou,510006,China)

机构地区：[1]江苏航运职业技术学院交通工程学院,南通226010 [2]南京航空航天大学机械结构力学及控制国家重点实验室,南京210016 [3]南京航空航天大学材料科学及技术学院,南京211106 [4]广州大学机电工程学院,广州510006

出　　处：《振动．测试与诊断》2024年第2期239-245,406,共8页Journal of Vibration,Measurement & Diagnosis

基　　金：江苏省高等学校基础科学(自然科学)研究面上基金资助项目(22JKD430004);国家自然科学基金资助项目(51672130);机械结构力学及控制国家重点实验室研究基金资助项目(MCMS-0518K01);江苏省重点研发计划资助项目(BE2018008-2)。

摘　　要：针对形状记忆合金(shape memory alloy,简称SMA)材料在使用过程中因其较低的响应频率而很难应用于高频率场所问题,在聚偏氟乙烯(polyvinylidene fluoride,简称PVDF)薄膜中引入锆酸铅钡(Pb_(0.8)Ba_(0.2)ZrO_(3),简称PBZ)纳米陶瓷纤维制备柔性薄膜,并与NiTi合金弹簧复合制得PBZ/PVDF@SMA复合驱动器,通过薄膜的电卡效应加热及冷却SMA丝,与传统电流加热及自然冷却方式进行了对比。结果表明,缩短了SMA丝循环周期,提高了其响应频率,有利于扩大SMA的适用场所。In view of the problem that shape memory alloy(SMA)materials are difficult to be applied to highfrequency places due to their low response frequency during use,lead barium zirconate Pb0.8Ba0.2ZrO3(PBZ)nano-ceramic fibers are introduced into the polyvinylidene fluoride(PVDF)film to prepare a flexible film,and combines with the NiTi alloy spring to obtain a PBZ/PVDF@SMA composite actuator.The electrocaloric effect(ECE)of the composite film is used to heat and cool the SMA wire,and compared with the traditional electric current heating and natural cooling methods.The results show that it can shorten the cycle of the SMA wire,increase its response frequency,and expand the application place of SMA.

关 键 词：形状记忆合金 聚偏氟乙烯薄膜 锆酸铅钡纳米纤维 复合驱动器 电卡效应 缩短周期 

分 类 号：V214.8[航空宇航科学与技术—航空宇航推进理论与工程] TH113.1[机械工程—机械设计及理论]