框架在脉冲位移作用下的回传波射矩阵法解  

Analysis of Frames Subjected to Impulse Displacement with Method of Reverberation Ray Matrix

作　　者：范志华[1] 孙国钧[1] 缪馥星[1] 

机构地区：[1]上海交通大学工程力学系,上海200030

出　　处：《振动．测试与诊断》2009年第1期92-95,共4页Journal of Vibration,Measurement & Diagnosis

摘　　要：基于Bernulli梁理论推导了回传波射矩阵公式,并将该方法的分析扩展到脉冲位移载荷的情形,利用回传波射矩阵法求解了17杆框架承受正弦半波脉冲位移作用时的瞬态响应,并将求出的内力、位移与用ANSYS软件得到的有限元解进行比较,两种解法的结果吻合较好。This paper described a method of reverberation ray matrix based on the Bernoulli beam theory.The method was applied to a structure subjected to impulse displacement loads.The reliability of the method was verified by comparing the solution of the transient internal forces and displacement responses of a 17 bar frame subjected to half sine wave displacement loads with the FEM solution presented by ANSYS.The results from the both methods were nearly identical.

关 键 词：框架 脉冲 动力分析 回传波射矩阵法 

分 类 号：TU311.3[建筑科学—结构工程]