论文部分内容阅读
提出了能模拟不同颗粒形状的微颗粒组合体的椭球状散体元模型，从理论上解决了椭球单元的接触判断及运动学、动力学问题。采用该模型对NOPD复合阻尼结构进行了动力学计算，计算结果与实验结果具有很好的一致性，为进一步研究NOPD的阻尼机理提供了一种理论分析方法。
An ellipsoid-like elemental model is proposed to simulate the combination of particles with different particle shapes, which theoretically solves the problem of contact judgment and kinematics and dynamics of ellipsoidal elements. The model was used to calculate the NODD composite damping structure. The calculated results are in good agreement with the experimental results, which provides a theoretical analysis method for further studying the damping mechanism of NOPD.