交叉梁系支承刚度的识别  

Identification of the Supporter′s Stiffness of Cross Beams

作　　者：李享荣[1] 李俊[1] 

机构地区：[1]上海大学理学院力学系,上海200436

出　　处：《噪声与振动控制》2005年第2期47-49,共3页Noise and Vibration Control

摘　　要：通过实测交叉梁系低阶的固有频率,以传递矩阵法为基础,由计算机代数语言推导出含待识别支承刚度的高次方程或非线性方程组,解此方程就能识别出支承刚度,并通过实验来验证该方法的有效性。By means of measuring the lower natural frequencies of cross beams together with transfer matrix method, the high-order equation or nonlinear equation sets can be deduced by computer algebra language. This equation contains unknown quantity of the supporting stiffness. Thus the stiffness can be identified. The effectiveness of this method has been proved by experiments.

关 键 词：支承刚度 交叉梁系 识别 计算机代数语言 非线性方程组 传递矩阵法 固有频率 高次方程 

分 类 号：O241.7[理学—计算数学] TM621.3[理学—数学]