结构动力响应的无条件稳定计算格式

Unconditional Stable Calculation Scheme for Velocity Response of Structures

以三次Ｂ样条函数作为速度时域函数，应用配点法，在任一时间步长中列出两个时刻的结构物运动方程式残值为零的条件，并使结果满足了稳定条件，得到一个计算结构物动力响应无条件稳定的计算格式。

By the method of collocation,using the cubic B-spline function as thetrial function of velocity response in the time domain、and putting zero residuals of thedifferential equation of motion of the strticture at any two time moments,an unconditional stable calculation scheme for the velocity response of the structure is obtained.