Rui Chen1, 2, Yong Wang1, 2, Ruitao Peng1, 2, *, Shengqiang Jiang1, 2, Congfang Hu1, 2, Ziheng Zhao1, 2
CMES-Computer Modeling in Engineering & Sciences, Vol.123, No.2, pp. 717-737, 2020, DOI:10.32604/cmes.2020.07438
Abstract An inverse method for parameters identification of discrete element model
combined with experiment is proposed. The inverse problem of parameter identification
is transmitted to solve an optimization problem by minimizing the distance between the
numerical calculations and experiment responses. In this method, the discrete element
method is employed as numerical calculator for the forward problem. Then, the orthogonal
experiment design with range analysis was used to carry out parameters sensitivity
analysis. In addition, to improve the computational efficiency, the approximate model
technique is used to replace the actual computational model. The intergeneration projection
genetic algorithm (IP-GA) is employed as the… More >
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