点差法
点差法-
提出一种描述多支承转子系统弯曲振动的数学模型：应用二分法和LU分解法综合计算弯曲自由振动模态，应用Newmark时间差分法和空间五点差分法综合求解弯曲强迫振动动力响应；
The bending vibration equations are established on the multi-supports rotor model system . For calculating mode of free vibration , the dichotomy and LU law are adopted , while the Newmark law and quincunx difference are applied to dynamical response calculations .
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采用五点差分法提取脉搏波的特征点。
Applies the method of five-point difference to detect the characteristic points of pulse wave .
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在平面温度应力问题和热屈曲问题的计算中，采用了精度更高的五节点差分法来进行计算。
We adopt five nodes difference method to solve thermal stress problem and thermal buckling problem , because this method is more precise .