The first natural frequency map in working space was drawn, which can be useful for selecting proper working position to avoid resonance or low-order harmonic oscillation.
The first natural frequency map in working space was drawn, which can be useful for selecting proper working position to avoid resonance or low-order harmonic oscillation.
讨论了频率求解精度、收敛性与单元横向弹性位移型函数以及单元数量之间的关系。