Application of symplectic scheme to three-dimensional elastic analysis using MPS method
Application of symplectic scheme to three-dimensional elastic analysis using MPS method
复制标题
辛格式在MPS法三维弹性分析中的应用
DOI：
10.1299/kikaia.72.425
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发表时间：
2006
期刊：
影响因子：
--
通讯作者：
Yukihito Suzuki
中科院分区：
文献类型：
--
作者：
M. Kondo;S. Koshizuka;Yukihito Suzuki
提出了一种三维弹性体分析的移动质点半隐式法（MPS）计算方法。每个粒子的角速度和旋转角度分别由相邻粒子的速度和坐标隐式计算。采用辛格式，可以在保持总能量的情况下分析伴随刚性转动的大变形问题。通过引入粘性项，可以在不损失角动量的情况下降低总能量。
A calculation method for three-dimensional elastic solid analysis is proposed using the Moving Particle Semi-implicit method (MPS). The angular velocities and the rotation angles of each particle are implicitly calculated from the velocities and coordinates of the neighbor particles respectively. Large deformation accompanied by rigid rotation can be analyzed with keeping the total energy by employing a symplectic scheme. By introducing a viscosity term, the total energy can be decreased without loss of angular momentum.