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将复合推进剂看作是颗粒与基体组成的复合材料,应用分子动力学模拟方法生成推进剂颗粒在基体中随机分布的填充模型。研究表明,分子动力学模拟方法,指定与颗粒直径成比例的增长率可有效地生成颗粒大小不等的填充模型,为分析推进剂细观力学性能和燃烧性能奠定基础。
The composite propellant is regarded as a composite material composed of particles and matrix. Molecular dynamics simulation method is used to generate a filling model in which propellant particles are randomly distributed in the matrix. The results show that the molecular dynamics simulation method, which designates the growth rate proportional to the particle diameter, can effectively generate the filling model with different particle sizes, which lays the foundation for analyzing the meso-mechanical properties and combustion performance of the propellant.