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介绍了杆系结构动力响应的弹性波分析的方法——回传波射矩阵法 ,并将其应用于受阶跃函数加载的钢屋架的瞬态响应分析 .与有限元法进行比较 ,结果表明 ,用弹性波方法所得到的动态响应含有丰富的高频分量 ,能更精确地描述结构的瞬态动力过程
The method of elastic wave analysis of the dynamic response of the bar structure is introduced, which is the backscattering matrix method and applied to the transient response analysis of steel truss girders subjected to step function loading. Compared with the finite element method, the results show that , The dynamic response obtained by the elastic wave method is rich in high frequency components and can describe the transient dynamic process of the structure more accurately