Structural Dynamic Modeling: Tales of Sin and Redemption

2015 ◽  
pp. 63-73 ◽  
Author(s):  
Robert N. Coppolino
Keyword(s):  
Dynamic Modeling ◽  
Structural Dynamic

scholarly journals Fast structural dynamic modeling and analysis for horizontally folding wing

2021 ◽  
Vol 37 (3) ◽  
Author(s):  
Y. Ni ◽  
W. Zhang ◽  
Y. Lv
Keyword(s):  
Dynamic Modeling ◽  
Structural Dynamics ◽  
Dynamic Characteristics ◽  
Synthesis Method ◽  
Finite Model ◽  
Dynamics Modeling ◽  
Structural Dynamic ◽  
Modal Synthesis ◽  
Folding Wing ◽  
Fixed Interface

To investigate the structural dynamic characteristics of a folding wing effectively, a fast structural dynamic modeling approach is proposed. Firstly, the interface compatible relationship of the traditional fixed interface component modal synthesis method is modified, and the internal force of the interface is completely expressed in the structural dynamic equation, so that the influence of the connection stiffness on the wing structure dynamics can be considered. Then, on the basis of the fixed interface component modal synthesis method, the main mode of fixed-loaded interface is introduced to establish the mixed-loaded interface component modal synthesis method, which makes it feasible to accurately reflect the influence of elasticity and inertia of fuselage and outer wing on inner wing. The structural dynamics modeling method based on two different kinds of component modal synthesis method analyzed and deduced in detail. The application of component modal synthesis method in the fast structural dynamics modeling of folding wing is achieved. The whole program is compiled in MATLAB. At the same time, the dynamic characteristics of the folding wing with different folding angles, different connections and different connection positions is investigated. The results of the method proposed in this paper are compared with the results of the repeated finite model established in MSC.NASTRAN to verify the effectiveness from the aspects of natural frequency and vibration mode.

A Structural-Dynamic-Modeling Method for Long Cantilever Beam

2020 ◽  
Author(s):  
Zhao Yufei ◽  
Li Ke ◽  
Zhang Zhongzhe ◽  
Wang Yanbo ◽  
Jie Pengyu ◽  
...  
Keyword(s):  
Cantilever Beam ◽  
Dynamic Modeling ◽  
Modeling Method ◽  
Structural Dynamic

Structural dynamic modeling and stability of a rotating blade under gravitational force

2013 ◽  
Vol 332 (11) ◽  
pp. 2688-2700 ◽  
Author(s):  
Seungmin Kwon ◽  
Jintai Chung ◽  
Hong Hee Yoo
Keyword(s):  
Dynamic Modeling ◽  
Gravitational Force ◽  
Structural Dynamic ◽  
Rotating Blade
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