Year 2020, Volume , Issue 18, Pages 465 - 475 2020-04-15

Artificial Neural Network (ANN) Approach for Dynamic Viscosity of Aqueous Gelatin Solutions: A Soft Computing Study
Jelatin Çözeltilerinin Dinamik Viskozitesine Yapay Sinir Ağı (YSA) Yaklaşımı: Esnek Hesaplama Çalışması

Barış DEMİRBAY [1] , Altun Buse KARAKULLUKÇU [2]


In this research, we present a multi-layered feed-forward neural network (ANN) model developed for prediction of dynamic viscosity of aqueous gelatin solutions using experimental data collected from a number of measurements. In ANN architecture, shear stress, shear strain, torque of spindle, the angular velocity of spindle together with mass concentrations of gelatin solutions were introduced as input neurons, whereas dynamic viscosity of aqueous gelatin solutions was assigned as a single output neuron to be predicted. Developed ANN model was trained using backpropagation algorithm optimized with Bayesian regulation. Optimal geometry of the hidden layer was first studied to search out the ANN architecture which yields the most accurate performance results. Mean squared error (MSE), mean absolute error (MAE), root-mean-squared error (RMSE), determination of coefficient (R^2), the variance accounted for (VAF) and regression analyses were used as performance assessment parameters for suggested network models. Sensitivity analysis was carried out to investigate the most effective input neuron strongly influencing the performance of the developed ANN model. As a result, the use of 8 neurons in the hidden layer has shown excellent performance results yielding the least MSE and the highest R^2 values compared to other suggested ANN models. Upon sensitivity analysis, the shear rate was found to be the most effective input neuron significantly affecting network performance. ANN-based predicted dynamic viscosity values were found to be in excellent agreement with measured viscosity values, demonstrating the robustness as well as the accuracy of the developed ANN model. Developed ANN model can, therefore, be effectively used to predict the dynamic viscosity of aqueous polymer solutions using the same input and output parameters in specific data range reported in this paper with statistical details.
Bu araştırmada, bir dizi ölçümden toplanmış deneysel veriyi kullanarak jelatin çözeltilerinin dinamik viskozitesini tahmin etmek üzere geliştirilen çok katmanlı ileri beslemeli bir yapay sinir ağı modeli (YSA) sunuyoruz. YSA yapısında, kayma gerilmesi, kayma oranı, mil torku, mil açısal hızı ile birlikte jelatin çözeltilerinin kütle konsantrasyonu giriş nöronları olarak tanıtılırken, jelatin çözeltilerinin dinamik viskozitesi tahmin edilmek üzere tek bir çıkış nöronu olarak kullanılmıştır. Geliştirilen YSA modeli, Bayesian regülasyonu ile optimize edilmiş geri yayılım algoritması kullanılarak eğitilmiştir. İlk olarak, en doğru performans sonuçlarını veren YSA yapısını bulmak üzere gizli katmanın optimal geometrik yapısı çalışılmıştır. Önerilen ağ modelleri için ortalama karesel hata (MSE), ortalama mutlak hata (MAE), ortalama kare hatalarının karekökü (RMSE), determinasyon katsayısı (R^2), varyans (VAF) ve regresyon analizleri performans değerlendirme parametreleri olarak kullanılmıştır. Geliştirilen YSA modelinin başarı performansını etkileyen en etkin giriş nöronunu araştırmak amacıyla duyarlılık analizi yapılmıştır. Sonuç olarak, gizli katmanda 8 nöronun kullanılması, önerilen diğer YSA modellerine kıyasla en düşük MSE ve en yüksek R^2 değerlerini vererek en yüksek başarı performansını göstermiştir. Duyarlılık analizinin sonucu olarak, kayma oranı oluşturulan sinir ağının başarı performansını etkileyen en etkin giriş nöronu olarak bulunmuştur. Tahmin edilen dinamik viskozite değerlerinin, ölçülen dinamik viskozite değerleriyle büyük bir uyum içinde olması, geliştirilen YSA modelinin doğruluğunu ve güvenilirliğini ispatlamıştır. Bu nedenle geliştirilen YSA modeli, bu araştırmada istatistiksel detayları verilen veri aralığındaki giriş ve çıkış parametrelerini kullanarak, polimer çözeltilerinin dinamik viskozitesini tahmin etmek için efektif bir kullanım sağlamaktadır.
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Primary Language en
Subjects Engineering
Journal Section Articles
Authors

Orcid: 0000-0002-5454-7437
Author: Barış DEMİRBAY (Primary Author)
Institution: KTH Royal Institute of Technology
Country: Sweden


Orcid: 0000-0002-3655-0931
Author: Altun Buse KARAKULLUKÇU
Institution: Kocaeli University
Country: Turkey


Thanks Experimental data used in this work were provided from a part of undergraduate thesis written by Barış Demirbay. The authors would like to thank Assoc. Prof. Dr. F. Gülay Acar for permission to the use of experimental data.
Dates

Publication Date : April 15, 2020

APA Demi̇rbay, B , Karakullukçu, A . (2020). Artificial Neural Network (ANN) Approach for Dynamic Viscosity of Aqueous Gelatin Solutions: A Soft Computing Study . Avrupa Bilim ve Teknoloji Dergisi , (18) , 465-475 . DOI: 10.31590/ejosat.680773