非线性系统动力响应的另一解法

Another solution of dynamic response of nonlinear system

采用复化SIMPSON公式对t—y曲线进行积分,从数值积分的角度推导了非线性动力响应的平衡方程,结果得出,采用复化SIMPSON公式积分的计算精度要比逐步积分法计算的精度高,值得推广。

This paper carries out integration on t-y curve by composed SIMPSON formula, makes a deduction of balance equation of nonlinear dynamic response from the angle of numerical integration, and shows by the results that the computational accuracy of integration by composed SIMPSON formula is higher than that by step-by-step integration, which is worthy to be popularized.