【摘要】 在结构动力学方程的数值积分中,常用Newmark法、Wilson法.本文提出采用对角化的质量矩阵,从求解{δ}入手的近似方法,旨在避免求解复杂线性方程组.算例表明,时间步长取得较小时,具有良好的精度.更多还原

【Abstract】 For the numerical integration of structural dynamic equation, both Newmark method and Wilson method are commonly adapted.This paper gives an approximate method of solving{δ}, based on the diagonalized mass matrix instead of the complicated linear eguations.The numerical examples show the excellent accuracy as long as the time-step is small enough.更多还原