装备环境工程
裝備環境工程
장비배경공정
EQUIPMENT ENVIRONMENTAL ENGINEERING
2014年
6期
110-115
,共6页
铝合金%腐蚀深度%数据分析%对比性研究
鋁閤金%腐蝕深度%數據分析%對比性研究
려합금%부식심도%수거분석%대비성연구
aluminum alloy%pit depths%data analysis%comparative research
目的：研究LD2 CS铝合金腐蚀损伤数据的分析方法。方法针对LD2 CS铝合金腐蚀坑深度值，采用最小二乘支持向量机、BP人工神经网络和求和自回归移动平均等3种模型进行回归和预测分析。对比总结各种模型在小样本递增时间序列下的应用特点。结果对于LD2 CS铝合金腐蚀坑深度值预测，最小二乘支持向量机在回归和预测上都有较高的精度。结论最小二乘支持向量机模型最适合LD2 CS铝合金的腐蚀坑深度值预测。
目的：研究LD2 CS鋁閤金腐蝕損傷數據的分析方法。方法針對LD2 CS鋁閤金腐蝕坑深度值，採用最小二乘支持嚮量機、BP人工神經網絡和求和自迴歸移動平均等3種模型進行迴歸和預測分析。對比總結各種模型在小樣本遞增時間序列下的應用特點。結果對于LD2 CS鋁閤金腐蝕坑深度值預測，最小二乘支持嚮量機在迴歸和預測上都有較高的精度。結論最小二乘支持嚮量機模型最適閤LD2 CS鋁閤金的腐蝕坑深度值預測。
목적：연구LD2 CS려합금부식손상수거적분석방법。방법침대LD2 CS려합금부식갱심도치，채용최소이승지지향량궤、BP인공신경망락화구화자회귀이동평균등3충모형진행회귀화예측분석。대비총결각충모형재소양본체증시간서렬하적응용특점。결과대우LD2 CS려합금부식갱심도치예측，최소이승지지향량궤재회귀화예측상도유교고적정도。결론최소이승지지향량궤모형최괄합LD2 CS려합금적부식갱심도치예측。
Objective To study analysis methods for corrosion damage data of LD2CS aluminum alloy. Methods Three forecasting models were used to conduct regression and prediction analysis, targeting at the corrosion pit depths of LD2CS aluminum alloy structural material, which were LS-SVM, BP-ANN and ARIMA. Basic forecasting principles and forecast accuracy of the three prediction methods were compared and analyzed. Results The calculation results showed that the pre-diction accuracy and the prediction extensionality of LS-SVM were better than those of the other models for the prediction of corrosion pit depths of LD2CS aluminum alloy. Conclusion LS-SVM was the most suitable model for prediction of corrosion pit depths of LD2CS aluminum alloy.
