SENSING MECHANISM OF MAGNETOSTRICTIVE MATERIAL
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摘要: 简介了磁致伸缩材料的伸缩效应及产生机理,磁测应力原理,磁致伸缩效应在检测钢管隔热层下腐蚀缺陷中的应用,并推导了磁场-伸缩-力耦合传感方程,试图从这些方面揭示磁致伸缩材料的应力感知机理,为其在土木工程中的应用提供理论依据。
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关键词:
- 磁致伸缩效应 /
- 磁致伸缩机理 /
- 磁致伸缩效应的应用 /
- 磁场-伸缩-力耦合传感方程
Abstract: Magnetostricive effect, mechanism of magnetostrictive material, the principle of coupling between magnetic and stress, as well as the use of magnetostrictive effect in identification damage of steel tube are reviewed.Equation of sensing among magnetic field and strictive and stress is deduced.From those aspects, the mechanism of sensing for magnetostrictive material is elaborated and a little foundation theory is provided for the use of the mechanism of magnetostrictive effect in civil engineering in the future. -
杨大智.智能材料与智能系统.天津:天津大学出版社,2000 [2] 杨东利.超磁致伸缩执行器及其在主动振动控制中的应用研究:[学位论文].杭州:浙江大学,2002 [3] 文西芹,刘成文.基于逆磁致伸缩效应的残余应力检测方法.传感器技术,2002,21(3): 42~44 [4] 俞丽蓉.磁致伸缩传感器技术探测钢管隔热层下缺陷的研究.无损探伤,2002(4):36~38 [5] 赵凯华,陈熙谋.电磁学.北京:高等教育出版社,1985
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