【摘要】 在结构动力分析中,计算体系的自振频率和振型是一项非常重要的内容。应用Stodola法可以求出体系的全部自振频率和振型。Stodola法在求解高频时,需要利用振型的正交性对迭代矩阵进行改造,为此,可通过Gauss-Jordan法求出清除矩阵,用清除矩阵右乘迭代矩阵,然后再进行迭代运算,从而保证迭代结果收敛到较高振型和频率。Gauss-Jordan法的引入,简化了整个计算过程,并且易于实现程序化求解。更多还原

【Abstract】 In structural dynamic analysis,to calculate system natural frequency and vibration mode is very important.All the natural frequencies and mode shapes can be obtained by Stodola method.When to solve high-frequency vibration mode by stodola method,it needs transform iteration matrix using orthogonality of vibration mode.For this purpose,we can calculate sweeping matrix through Gauss-Jordan method,and multiply it and iteration matrix,then carry out iterative calculations,which ensure iterative results to convergence higher vibration mode and frequency.Gauss-Jordan method simplifies the whole calculation process,and it is easy for programmed calculation.更多还原