为了解决这个问题并简化求解过程,对上述方法进行了改进,即采用局部叠加加速度脉冲响应函数的方法。在使用局部叠加加速度脉冲响应函数的过程中,由于存在如何选取频率控制点和阻尼比控制点的问题,文中提出2个选择准则。通过数值试验对提出的改进方法的有效性进行了验证,并对2个选择准则进行了评估,确定了选用原则。 In order to solve this problem and simplify the solution process, the above method is improved, that is, a method of partially superimposing the acceleration impulse response function is adopted. In the process of using locally stacked acceleration impulse response function, two selection criteria are proposed in this paper because of the problem of how to select the frequency control point and damping ratio control point. The validity of the proposed method is verified by numerical experiments. The two selection criteria are evaluated and the selection principle is determined.