起重运输机械
起重運輸機械
기중운수궤계
HOISTING AND CONVEYING MACHINERY
2014年
9期
9-13
,共5页
程秋平%刘志云%任尚坤%李兵
程鞦平%劉誌雲%任尚坤%李兵
정추평%류지운%임상곤%리병
无损检测%涡流检测%漏磁检测%交流场检测%有限元仿真
無損檢測%渦流檢測%漏磁檢測%交流場檢測%有限元倣真
무손검측%와류검측%루자검측%교류장검측%유한원방진
nondestructive testing%eddy current testing%magnetic flux leakage testing%AC field measurement%finite element simulation
交流电磁场检测技术(ACFM)是近几年兴起的一种新型电磁检测方法,是通过检测工件表面由裂纹引起的磁场扰动来实现对金属构件损伤的早期评定,代表着无损检测领域未来的主要发展方向。分析了交流场检测的基本原理,建立了有限元技术的仿真模型。在ACFM仿真研究的基础上,研究了检测信号特征与试件裂纹尺寸参数的对应关系。探索了检测频率、提离高度以及工件材料特性(如磁导率和电导率)等因素对检测灵敏度的影响。得到一系列重要的研究结论,为该检测技术的深入研究和广泛应用提供了依据。
交流電磁場檢測技術(ACFM)是近幾年興起的一種新型電磁檢測方法,是通過檢測工件錶麵由裂紋引起的磁場擾動來實現對金屬構件損傷的早期評定,代錶著無損檢測領域未來的主要髮展方嚮。分析瞭交流場檢測的基本原理,建立瞭有限元技術的倣真模型。在ACFM倣真研究的基礎上,研究瞭檢測信號特徵與試件裂紋呎吋參數的對應關繫。探索瞭檢測頻率、提離高度以及工件材料特性(如磁導率和電導率)等因素對檢測靈敏度的影響。得到一繫列重要的研究結論,為該檢測技術的深入研究和廣汎應用提供瞭依據。
교류전자장검측기술(ACFM)시근궤년흥기적일충신형전자검측방법,시통과검측공건표면유렬문인기적자장우동래실현대금속구건손상적조기평정,대표착무손검측영역미래적주요발전방향。분석료교류장검측적기본원리,건립료유한원기술적방진모형。재ACFM방진연구적기출상,연구료검측신호특정여시건렬문척촌삼수적대응관계。탐색료검측빈솔、제리고도이급공건재료특성(여자도솔화전도솔)등인소대검측령민도적영향。득도일계렬중요적연구결론,위해검측기술적심입연구화엄범응용제공료의거。
The AC field measurement technology (ACFM) is a new kind of electromagnetic testing method in recent years,which is used to perform early evaluation for damages of metal components through field disturbance caused by cracks on the surface of pieces under test,representing a major future development trend of the nondestructive testing field.The paper analyzes the fundamental principle of AC field measurement,with the simulation model built based on the finite element technology.According to ACFM simulation study,the correspondence between testing signal characteristics and size parameters of cracks on test-pieces is researched,as well as the effect of detecting frequency,lifting height,and material features (such as permeability and conductivity) and other factors on the detection sensitivity,with some critical conclusions worked out,providing a basis for deep research and wide application of the detecting technology.