利用能量守恒定律的力磁耦合模型研究  

Research on Magneto-mechanical Coupling Model Using Law of Energy Conservation

作　　者：杨晓惠[1] 陈龙 何长春 蒲海峰 贾志斌 YANG Xiaohui;CHEN Long;HE Changchun;PU Haifeng;JIA Zhibin(School of Mechanical and Electrical Engineering,Southwest Petroleum University,Chengdu 610500,China)

机构地区：[1]西南石油大学机电工程学院,成都610500

出　　处：《机械科学与技术》2025年第2期352-360,共9页Mechanical Science and Technology for Aerospace Engineering

基　　金：国家自然科学基金项目(51974273);四川省自然科学基金项目(2022NSFSC1116)。

摘　　要：金属磁记忆检测技术在铁磁性金属构件的早期损伤诊断方面极具应用潜力,利用力磁耦合模型进行仿真正演分析为该技术实现结构安全的精确定量化评估提供了一条有效途径。本文针对现有基于能量守恒定律的力磁耦合模型版本众多,难以筛选的现状,通过分析比较进行了模型优选,通过有限元仿真和试验研究对优选模型的准确性和适用性进行验证。结果表明:优选模型可以准确描述应力、缺陷形貌和尺寸对铁磁构件磁记忆信号的影响规律,优选模型的理论分析结果和试验结果一致性好,说明该优选模型能够实现铁磁构件磁记忆信号的定量化分析。Metal magnetic memory testing technology has great potential application in early damage diagnosis of ferromagnetic metal components.It provides an effective way to realize the precise determination and quantitative evaluation of structural safety by using magneto-mechanical coupling model for simulation forward analysis.However,there are many versions of existing magneto-mechanical coupling models based on the law of energy conservation,which are difficult to be selected for specific application.In view of this situation,the model is optimized through analysis and comparison.The accuracy and applicability of the optimal model are verified by finite element simulation and experimental research.The results show that the optimal model can accurately describe the influence of stress,defect morphology and size on the magnetic memory signal of ferromagnetic components,and the theoretical analysis results of the optimal model are in good agreement with the experimental results.This study shows that the optimal model can realize the quantitative analysis of the magnetic memory signal of ferromagnetic components.

关 键 词：金属磁记忆 力磁耦合 能量守恒定律 有限元 定量化 

分 类 号：TG115[金属学及工艺—物理冶金]