电工技术学报  2020, Vol. 35 Issue (19): 4139-4149    DOI: 10.19595/j.cnki.1000-6753.tces.191222
电工理论 |
用于铝板声弹性系数标定的电磁加载装置设计
张闯1,2, 王标1,2, 刘素贞1,2, 杨庆新1
1.省部共建电工装备可靠性与智能化国家重点实验室(河北工业大学) 天津 300130;
2.河北省电磁场与电器可靠性重点实验室(河北工业大学) 天津 300130
Electromagnetic Loading Device Design for Acoustoelastic Coefficient Calibration of Aluminum Plates
Zhang Chuang1,2, Wang Biao1,2, Liu Suzhen1,2, Yang Qingxin1
1. State Key Laboratory of Reliability and Intelligence of Electrical Equipment Hebei University of Technology Tianjin 300130 China;
2. Key Laboratory of Electromagnetic Field and Electrical Apparatus Reliability of Hebei Province Hebei University of Technology Tianjin 300130 China
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摘要 基于临界折射纵波对金属材料进行应力无损检测具有广泛的应用前景,该检测技术中金属材料声弹性系数的标定尤为重要。目前金属材料声弹性系数标定方法主要是采用机械加载方式对金属材料进行拉伸测试,这种方法不适用于一些在役金属构件的声弹性系数的测量。针对上述问题,该文基于洛仑兹力的产生机理设计了一种用于铝板声弹性系数标定的电磁加载装置。采用二维仿真模型对装置进行了尺寸参数分析与选择,建立三维有限元仿真模型计算铝板轴向电磁加载力。搭建了电磁加载实验平台,测量电磁加载状态下铝板中临界折射纵波的传播时间并计算铝板中轴向应力平均值,实验结果与仿真结果基本一致,验证了电磁加载装置的可行性。
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张闯
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杨庆新
关键词 声弹性系数电磁加载装置尺寸选择临界折射纵波    
Abstract:The non-destructive testing of stress in metallic materials based on critical refracting longitudinal waves has broad application prospects. The calibration of metal materials' acoustoelastic coefficient is particularly important. At present, the calibration method for acoustoelastic coefficient of metal materials is to perform tensile testing on metal materials by mechanical loading, which is not suitable for in-service metal components. Aiming at the above problems, based on the Lorentz force generation mechanism, this paper designed an electromagnetic loading device to calibrate acoustoelastic coefficient of aluminum plates. The two-dimensional simulation model was used to analyze and select the dimensional parameters of the device, and the three-dimensional finite element simulation model was established to calculate the axial electromagnetic loading force of aluminum plate. An electromagnetic loading test platform was built to measure the propagation time of critical refracting longitudinal waves in aluminum plates under electromagnetic loading and the average axial stress in the aluminum plates was calculated. The experimental results were basically consistent with the simulation results, which verified the feasibility of the electromagnetic loading device.
Key wordsAcoustoelastic coefficient    electromagnetic loading device    size selection    critical refracting longitudinal waves   
收稿日期: 2019-09-27     
PACS: TM15  
基金资助:国家自然科学基金(51777052, 51977058)、新能源电力系统国家重点实验室开放课题(LAPS20018)和河北省高校科研重点项目(ZD2018214)资助
通讯作者: 张闯,男,1982年生,博士,教授,研究方向为电磁无损检测与评估。E-mail:czhang@hebut.edu.cn   
作者简介: 王标,男,1995年生,硕士研究生,研究方向为现代工程电磁技术及应用。E-mail:1552970543@qq.com
引用本文:   
张闯, 王标, 刘素贞, 杨庆新. 用于铝板声弹性系数标定的电磁加载装置设计[J]. 电工技术学报, 2020, 35(19): 4139-4149. Zhang Chuang, Wang Biao, Liu Suzhen, Yang Qingxin. Electromagnetic Loading Device Design for Acoustoelastic Coefficient Calibration of Aluminum Plates. Transactions of China Electrotechnical Society, 2020, 35(19): 4139-4149.
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https://dgjsxb.ces-transaction.com/CN/10.19595/j.cnki.1000-6753.tces.191222          https://dgjsxb.ces-transaction.com/CN/Y2020/V35/I19/4139