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Master's Dissertation
DOI
https://doi.org/10.11606/D.3.1993.tde-22052024-145832
Document
Author
Full name
Yukio Shigaki
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 1993
Supervisor
Committee
Augusto, Oscar Brito (President)
Brasil, Reyolando Manoel Lopes Rebello da Fonseca
Mattar Neto, Miguel
Title in Portuguese
Um estudo sobre métodos de síntese dos modos componentes.
Keywords in Portuguese
Engenharia Naval e Oceânica
Estruturas
Abstract in Portuguese
No presente trabalho apresentamos alguns métodos existentes de síntese de modos componentes. São métodos utilizados em análise dinâmica de estruturas de grande número de graus-de-liberdade ou de formas geométricas complexas, quando analisadas pela técnica de elementos finitos. Apresentamos o desenvolvimento matemático e procuramos explicitar vantagens e desvantagens de cada método, além de resolvermos um exemplo simples de cada um deles. Atemo-nos na determinação dos modos e frequências naturais de vibração de estruturas e desprezamos o amortecimento. Ao final implementamos um dos métodos no microcomputador e verificamos a sua precisão. Concluímos que estes métodos são uma ferramenta poderosa na análise dinâmica de estruturas pela sua precisão e versatilidade.
Title in English
Untitled in english
Keywords in English
Naval and Ocean Engineering
Structures
Abstract in English
In this work, some Component Mode Synthesis Methods are presented. They are methods employed in the dynamics analysis of large structures and/or structures with complex shapes, in a finite alement analysis. Mathematical development and advantages/disavantages of each method are described ando ne example is solved for each one. This study is limited to the determination of natural mode shapes and frequencies of structures. One of the methods is programmed in a microcomputer and its precision is verified. It is concluded that these methods are a powerful design tool in the dynamics analysis for their precision and versatility.
 
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Publishing Date
2024-05-24
 
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