东南大学学报（英文版）2023，Vol.39Issue(3)：225-232,8.DOI:10.3969/j.issn.1003-7985.2023.03.002
圆形Janus硫硒化钼板的振动行为分析
Vibration analysis of circular Janus MoSSe plates
摘要
Abstract
The vibration behavior of Janus monolayer molybdenum sulfoselenide (MoSSe) was studied based on molecular dynamics (MD) simulations and the finite element method (FEM) . MoSSe plates were simulated by FEM through the incorporation of intrinsic strain caused by lattice mismatch to the double-layer plate model. The vibrations of circular MoSSe plates with free boundaries and a clamped edge were determined by MD simulations and FEM. In addition, the effects of plate size, strain, and pressure on the natural frequency of the plates were investigated. The results showed that the natural frequency of the circular MoSSe plate with free boundaries gradually decreased with increasing plate size. Furthermore, a significant discontinuity in frequency was observed due to bowl and tube warpage when the diameter reached 8. 6 nm. The MD simulation and FEM calculation results were consistent in terms of the natural frequencies of the circular MoSSe plates of different sizes. In addition, the effects of strain and pressure on the natural frequency determined by the two methods were consistent for small deformations. The vibration of the MoSSe plate could be well predicted by the double-layer plate model.关键词
单层Janus硫硒化钼(MoSSe)/分子动力学(MD)/翘曲/固有频率Key words
Janus monolayer molybdenum sulfoselenide (MoSSe)/molecular dynamics (MD)/warpage/natural fre-quency分类
数理科学引用本文复制引用
刘鑫杰,王立峰..圆形Janus硫硒化钼板的振动行为分析[J].东南大学学报（英文版）,2023,39(3):225-232,8.基金项目
The National Natural Science Foundation of China(No.51921003),the National Science Fund for Distinguished Young Scholars(No.11925205). （No.51921003）
