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Paper Information

Journal:   JOURNAL OF SCIENCE AND TECHNOLOGY OF COMPOSITES (JSTC)   MARCH 2018 , Volume 4 , Number 4 ; Page(s) 443 To 452.
 
Paper: 

EFFECT OF DIMENSIONS SMART ATTACHED MASS AND LOCAL STIFFNESS ON DYNAMIC RESPONSE OF THICK PLATES

 
 
Author(s):  MALEKZADEH FARD KERAMAT*, ZOLGHADR NASER, POURMOAYED ALI REZA
 
* DEPARTMENT OF AEROSPACE ENGINEERING, MALEKASHTAR UNIVERSITY OF TECHNOLOGY, TEHRAN, IRAN
 
Abstract: 

In this article for the first time local stiffness and attached mass dimensions is concerned.The effects of these parameters are analysed on dynamic behavior of thick laminated plates with attached mass that maked smart with shape memory alloy. In deriving governing equations, Gark-Kant’s higher order theory is used and effects of SMA and attached mass’s stiffness taken into account and finally vibration equations of thick plate carrying attached mass contain SMA is reached by using Hamilton’s principal. Then by means of Galerkin method, mass and stiffness matrices are extracted for achieving to a standard eigenvalue vibration problem. In this problem simply supported boundary condition is used for each four edges. Some important parameters such as ratio of local stiffness to stiffness of host structure and smart attached mass dimension on main frequencies of laminated thick plate is studied. A Comparative result with those in published references is presented. These numerical results show that local stiffness due to smart attached mass has a great role on dynamic behavior of thick laminated plates that if SMA didn’t active properly or ignore the effect of attached mass`s stiffness the dynamic response of system will have a lot of changes.

 
Keyword(s): FREE VIBRATIONS, SMART ATTACHED MASS, LOCAL STIFFNESS, SMART COMPOSITE MATERIAL
 
References: 
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