Galfenol换能器的预应力仿真分析与温控优化研究  

Prestress simulation analysis and temperature control optimization of galfenol transducer

作　　者：曹清华[1,2] 秦宁 肖鸿 邵俊硕 杨炯睿 张小行[2] CAO Qinghua;QIN Ning;XIAO Hong;SHAO Junshuo;YANG Jiongrui;ZHANG Xiaoxing(Jiangxi Province Key Laboratory of Precision Drive and Equipment,Nanchang Institute of Technology,Nanchang 330099,China;School of Mechanical Engineering,Nanchang Institute of Technology,Nanchang 330099,China;Longgang Branch,Shenzhen Municipal Public Security Bureau,Shenzhen 518172,China)

机构地区：[1]南昌工程学院精密驱动与装备江西省重点实验室,江西南昌330099 [2]南昌工程学院机械工程学院,江西南昌330099 [3]广东省深圳市公安局龙岗分局,广东深圳518172

出　　处：《南昌工程学院学报》2025年第1期74-80,97,共8页Journal of Nanchang Institute of Technology

基　　金：江西省教育厅科学技术研究项目(GJJ18059,GJJ201927);精密驱动与装备江西省重点实验室项目(PLPDC-KFKT-201610)。

摘　　要：为了进一步改善预应力和温升对Galfenol磁致伸缩换能器性能的影响,采用理论分析与COMSOL耦合仿真相结合的方法,研究了不同预应力下换能器的静态与动态应变特性,并模拟工作状态下温升对Galfenol棒的影响。结果表明,Galfenol磁致伸缩换能器的预应力为8~10 MPa时,可显著提升其饱和磁致伸缩应变。此外,采用15 mm直径的冷凝管并通入0.01 m/s的乙二醇冷却液进行温控,能有效抑制在工作状态下的温升。在预应力应用和温升控制方面,研究结果可为Galfenol换能器的设计提供理论依据和应用借鉴。In order to further improve the performance of Galfenol magnetostrictive transducers affected by prestress and temperature rise,this paper employs theoretical analysis combined with COMSOL software for coupled simulation.The study investigates the static and dynamic strain characteristics of the transducers under various prestress conditions and models the impact of temperature rise on the Galfenol rod during operation.The results indicate that prestress within the range of 8-10 MPa significantly enhances the saturation magnetostrictive strain.Furthermore,a 15 mm diameter condenser tube was utilized,through which a glycol coolant was circulated at a flow rate of 0.01 m/s for temperature control,effectively suppressing the temperature rise during operation.This research provides a theoretical basis and reference for the design of Galfenol transducers,particularly in the application of prestress and temperature rise mitigation.

关 键 词：Galfenol合金 磁致伸缩换能器 预应力 温升控制 COMSOL 

分 类 号：TP202[自动化与计算机技术—检测技术与自动化装置]