Dynamic Condensation Method for an Efficient Modal Analysis of Structures with Repeated Patterns

2021 ◽  
Vol 45 (9) ◽  
pp. 751-758
Author(s):  
Geomji Choi ◽  
Seongmin Chang
Keyword(s):  
Modal Analysis ◽  
Condensation Method ◽  
Dynamic Condensation

scholarly journals Condensation method in practical modal analysis of hull vibration with application of 3D FE model

2019 ◽  
pp. 162-169
Author(s):  
Valeriy Sutyrin
Keyword(s):  
Modal Analysis ◽  
Three Dimensional ◽  
Element Model ◽  
Fe Model ◽  
Structural Elements ◽  
Natural Vibrations ◽  
Condensation Method ◽  
Dimensional Finite Element ◽  
Three Dimensional Finite Element ◽  
Analytical Approaches

This paper gives modal analysis results for mid-body of a refrigerator carrier ship by means of combined three-dimensional finite-element model with 1.5 million DOF. The study estimates the error of modal analysis for the ship structure if its boundary conditions are specified in advance, i.e. approximately, as well as analyses the gain in time offered by structuring the analytical model as per reduction (condensation) method. Analytical approaches thus transformed can be successfully applied in filtering lower frequencies and modes of natural vibrations for structural elements and joints of hull in the direct vicinity of exciting force application points.

A dynamic condensation method with free interface substructuring

2019 ◽  
Vol 129 ◽  
pp. 218-234 ◽  
Author(s):  
Jeong-Ho Kim ◽  
Seung-Hwan Boo ◽  
Phill-Seung Lee
Keyword(s):  
Free Interface ◽  
Condensation Method ◽  
Dynamic Condensation

Discussion and Closure: Vehicle-Bridge Interaction Analysis by Dynamic Condensation Method

1997 ◽  
Vol 123 (4) ◽  
pp. 532-533
Author(s):  
P. A. A. Laura ◽  
R. E. Rossi ◽  
Yeong-Bin Yang ◽  
Bing-Houng Lin
Keyword(s):  
Interaction Analysis ◽  
Condensation Method ◽  
Dynamic Condensation
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