红外与激光工程
紅外與激光工程
홍외여격광공정
INFRARED AND LASER ENGINEERING
2014年
11期
3633-3637
,共5页
周建民%蔡莉%杨君%符正晴%胡林海%李鹏
週建民%蔡莉%楊君%符正晴%鬍林海%李鵬
주건민%채리%양군%부정청%호림해%리붕
红外无损检测%电磁激励%偏最小二乘
紅外無損檢測%電磁激勵%偏最小二乘
홍외무손검측%전자격려%편최소이승
infrared nondestructive testing%electromagnetic excitation%partial least- squares regression
主动式电磁激励红外无损检测中,电磁激励参数的选择是决定无损检测效果的重要因素之一。研究首先通过正交实验分析了激励功率、线圈总长、线圈等效直径、提离距离、激励时间等电磁激励参数对材料激励热效应的影响;基于偏最小二乘构建了各参数与材料激励热效应的数学模型,并分析了二者之间的关系;最后利用15组验证样本对模型进行了验证。研究结果表明;所构建数学模型的平均误差为9.79%,各激励参数中,提离距离对材料激励热效应的影响最大,其次分别为线圈总长、线圈等效直径、激励时间和激励功率。
主動式電磁激勵紅外無損檢測中,電磁激勵參數的選擇是決定無損檢測效果的重要因素之一。研究首先通過正交實驗分析瞭激勵功率、線圈總長、線圈等效直徑、提離距離、激勵時間等電磁激勵參數對材料激勵熱效應的影響;基于偏最小二乘構建瞭各參數與材料激勵熱效應的數學模型,併分析瞭二者之間的關繫;最後利用15組驗證樣本對模型進行瞭驗證。研究結果錶明;所構建數學模型的平均誤差為9.79%,各激勵參數中,提離距離對材料激勵熱效應的影響最大,其次分彆為線圈總長、線圈等效直徑、激勵時間和激勵功率。
주동식전자격려홍외무손검측중,전자격려삼수적선택시결정무손검측효과적중요인소지일。연구수선통과정교실험분석료격려공솔、선권총장、선권등효직경、제리거리、격려시간등전자격려삼수대재료격려열효응적영향;기우편최소이승구건료각삼수여재료격려열효응적수학모형,병분석료이자지간적관계;최후이용15조험증양본대모형진행료험증。연구결과표명;소구건수학모형적평균오차위9.79%,각격려삼수중,제리거리대재료격려열효응적영향최대,기차분별위선권총장、선권등효직경、격려시간화격려공솔。
In the method of active electromagnetic excitation infrared nondestructive detection, the selection of electromagnetic excitation parameter is one of the important factors that determine nondestructive testing effect. Firstly, the relation between electromagnetic excitation parameters (excitation power, coil length, coil equivalent diameter, lift- off distance, excitation time, etc) and excitation thermal effect was analyzed through orthogonal test. The mathematical model between parameters and excitation thermal effect was built based on the partial least- squares regression. Lastly, the model was verified by 15 experiment samples. The result shows that the average error of mathematical model is 9.79%; lift- off distance affects most among the excitation parameters, followed by coil length, coil equivalent diameter, excitation time and excitation power.