期刊论文

Song, Yingming(songyingming@tsinghua.org.cn)

英文

Annals of Nuclear Energy

0306-4549

2021

161

108461

10.1016/j.anucene.2021.108461

The plate shielding optimization model is shown in Fig. 2, it composed of water, iron and lead. The normalized neutron energy spectrum of the equivalent surface source used in this example is from reference (Song et al., 2020) and the arrow direction is the emission direction of the source particles. According to the task of radiation protection and the optimization principle of shielding design, the volume and weight of shielding model and the flux after shielding are taken as the optimization

本校为第一机构

Safety and lightweight optimization is significant in shielding design of compact nuclear reactors. The optimal solutions obtained by the existing intelligent optimization algorithm of shielding design is not ideal when there are redundant optimization objectives. In this paper, we propose a novel multi-objective shielding optimization method which couples NSGA-II, deep neural network (DNN) and principal component analysis (PCA) for optimization by eliminating redundant objectives. The efficacy of the method is demonstrated by solving up to a plate shielding model and Savannah marine nuclear p...