杆件纵向振动中联接刚度的识别  

[DENTIFICATION OF THE JOINT STIFFNESS IN LONGITUDINAL VIBRATION

作　　者：李享荣[1] 林永汉[1] 张雷[2] 

机构地区：[1]上海大学力学系,上海200436 [2]上海理工大学,上海200093

出　　处：《力学与实践》2003年第4期40-41,共2页Mechanics in Engineering

摘　　要：以传递矩阵法为基础,用计算机代数系统编程,导出以联接刚度为未知量的方程,输入杆件纵向振动的第二阶固有频率,从而识别出杆件的联接刚度,并通过实验来验证该法的正确性。By means of the transfer matrix method and a program of the computer algebraic system, the paper obtains the equation with the joint stiffness as the unknown. With the second natural frequency of the beams, the joint stiffness can be identified. The validity of this method has been proved by experiment.

关 键 词：联接刚度 传递矩阵法 计算机代数系统 杆件结构 纵向振动 结构动力学 识别方法 固有频率 

分 类 号：TU323[建筑科学—结构工程] TU311.3