Comparison of regression, bee colony, and artificial neural network for predicting die filling in stamping of bipolar plates fuel cell

علوم کاربردی و محاسباتی در مکانیک

Article 4, Volume 36, Issue 2 - Serial Number 36, July 2024, Pages 47-58   

Document Type: Original Article

DOI: 10.22067/jacsm.2023.84567.1205

Authors

Vahid Modanloo^* ; Ahmad Mashayekhi; Behnam Akhoundi

Mechanical Engineering Department, Sirjan University of Technology, Sirjan, Iran

Abstract

Increasing the depth of microchannels on metallic bipolar plates (BPPs) in PEM fuel cells leads to an increase in the efficiency. In this research, the stamping process has been applied for manufacturing of the BPPs made of commercially pure titanium with a direct parallel flow field. The effect of process parameters including die clearance, forming speed, and sheet/die friction coefficient on the filling rate and thinning of the BPPs was investigated. The required tests were designed via the response surface method (RSM), implemented by a validated finite elements (FE) model, and the desired outputs were extracted. Then, a quadratic equation was presented for predicting the filling rate based on the input parameters using the regression method. In the following, using the artificial bee colony algorithm, the coefficients of the mentioned equation were enhanced and its error was decreased almost by 53%. Finally, an artificial neural network (ANN) was used to predict the filling rate. The results demonstrated that the proposed ANN model is very effective and approximates the filling rate of the microchannel with high accuracy.

Keywords

Titanium bipolar plates; Forming depth; Stamping process; Artificial bee colony algorithm; Artificial neural network

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