Recursive formulations for the method of reverberation-ray matrix and the application

作     者：ZHU Jun CHEN WeiQiu YE GuiRu Lü ChaoFeng 

作者机构：Department of Civil EngineeringZhejiang UniversityHangzhou 310027China 

出 版 物：《Science China(Physics,Mechanics & Astronomy)》 (中国科学：物理学、力学、天文学（英文版）)

年 卷 期：2009年第52卷第2期

页      面：293-302页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0704[理学-天文学] 080101[工学-一般力学与力学基础] 0801[工学-力学（可授工学、理学学位）] 

基　　金：Supported by the National Natural Science Foundation of China (Grant Nos. 10725210, 10832009, and 10432030) the National Basic Research Program of China (Grant No. 2009CB623204) the Specialized Research Fund for the Doctoral Program of Higher Education (Grant No. 20060335107) the Program for New Century Excellent Talents in University (Grant No. NCET-05-0510) 

主　　题：method of reverberation-ray matrix recursive formulation free vibration continuous Kirchhoff plate 

摘      要：A recursive formulation is proposed for the method of reverberation-ray matrix (MRRM) to exactly analyze the free vibration of a multi-span continuous rectangular Kirchhoff plate, which has two oppo- site simply-supported edges. In contrast to the traditional MRRM, numerical stability is achieved by using the present new formulation for high-order frequencies or/and for plates with large span-to-width ratios. The heavy computational cost of storage and memory are also cut down. An improved recursive formulation is further proposed by modifying the iterative formula to reduce the matrix inversion op- erations. Numerical examples are finally given to demonstrate the effectiveness and efficiency of the proposed recursive formulae.