利用负荷功率变动态导纳算法解决了节点导纳矩阵病态问题。
By using the variation dynamic admittance algorithm of the load power, the ill-conditional number problem of the node admittance matrix is solved.
用在此基础上编制的计算机程序，在主轴系统实际安装条件下，根据各测点的位移导纳试验数据，对机床主轴系统支承动态参数进行了识别计算。
By the computer program, the bearing dynamic parameters of the lathe spindle sys-tem could be identified using the experiment data when the lathe spindle system is mounted practically.
导纳是衡量结构动态特性的重要指标，任何结构的振动响应特性本质上都可以用结构表面各点的导纳来表示。
Mobility is an important concept for vibration isolation and vibration response characteristics of a structure can be represented essentially by its point mobility on its surface.
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