期刊刊名：科學與工程技術期刊 　 卷期：4卷3期

篇名出版日期：2008年9月1日

作者：JIA-YI YEH,JIUN-YEU CHEN,MING-YING HSU,KUAN-CHUAN FANG,葉佳益,陳俊宇,徐名瑩,方冠權

語言：English

關鍵字：tunable damping,electrorheological (ER) layer,discrete layer finite element,polar orthotropic plate,可調式阻尼效應,電變流體,離散層有限元素,極正交

被點閱次數：2次

閱讀時間：14sec

摘要：
In this study, the equations of motion for a polar orthotropic annular sandwich plate are derived by using the discrete layer finite element method. The extensional and shear modulus of the electrorheological (ER) fluid layer are described by complex quantities; moreover, the tunable damping of the sandwich system is more effective when the electric fields are applied. The ER fluid core is found to have a significant effect on the vibrational behaviors of the plate. Finally, the effects of ER layer thickness, base annular plate stiffness, and certain designed parameters on natural frequencies and modal loss factors are also discussed.

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