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Parametric optimization of friction stir welding process of age hardenable aluminum alloys-ANFIS modeling 被引量:2
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作者 D.Vijayan V.Seshagiri Rao 《Journal of Central South University》 SCIE EI CAS CSCD 2016年第8期1847-1857,共11页
A comparative approach was performed between the response surface method(RSM) and the adaptive neuro-fuzzy inference system(ANFIS) to enhance the tensile properties, including the ultimate tensile strength and the ten... A comparative approach was performed between the response surface method(RSM) and the adaptive neuro-fuzzy inference system(ANFIS) to enhance the tensile properties, including the ultimate tensile strength and the tensile elongation, of friction stir welded age hardenable AA6061 and AA2024 aluminum alloys. The effects of the welding parameters, namely the tool rotational speed, welding speed, axial load and pin profile, on the ultimate tensile strength and the tensile elongation were analyzed using a three-level, four-factor Box-Behnken experimental design. The developed design was utilized to train the ANFIS models. The predictive capabilities of RSM and ANFIS were compared based on the root mean square error, the mean absolute error, and the correlation coefficient based on the obtained data set. The results demonstrate that the developed ANFIS models are more effective than the RSM model. 展开更多
关键词 aluminum alloys response surface method(RSM) adaptive neuro-fuzzy inference system(anfis friction stir welding Box-Behnken design neuro fuzzy
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混凝土强度模糊神经网络检测系统 被引量:1
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作者 徐菁 冯启民 杨松森 《数据采集与处理》 CSCD 北大核心 2005年第4期488-492,共5页
为了提高检测精度,建立了模糊神经网络来综合评定结构的混凝土强度,充分利用了钻芯法和回弹法这两种常用混凝土测强方法的特点以及模糊神经网络的自学习、泛化和模糊逻辑推理功能。根据回弹值与钻芯值之间趋于幂函数关系的专家经验,将... 为了提高检测精度,建立了模糊神经网络来综合评定结构的混凝土强度,充分利用了钻芯法和回弹法这两种常用混凝土测强方法的特点以及模糊神经网络的自学习、泛化和模糊逻辑推理功能。根据回弹值与钻芯值之间趋于幂函数关系的专家经验,将回弹值和钻芯值分别取常用对数作为模型的输入和输出,以提高建模精度。同时,模型参数采用一种混合学习算法确定,可以提高学习速度。实验结果表明,模型预测结果的平均相对误差为10.316%,相对标准差为12.895%,满足工程实际要求。该方法可以有效地映射出钻芯、回弹数据间复杂的非线性关系,为混凝土强度检测评定提供了一种有效的途径。 展开更多
关键词 自适应神经模糊检测系统 TAKAGI-SUGENO模糊模型 混凝土无损伤检测 钻芯法 回弹法
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