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題 名 | Vibration Analysis of Orthotropic Sandwich Plate with MR Elastomer=磁變彈性體正交三明治方板之振動分析 |
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作 者 | 葉佳益; | 書刊名 | 應用聲學與振動學刊 |
卷 期 | 6:2 2014.12[民103.12] |
頁 次 | 頁9-14 |
分類號 | 440.12 |
關鍵詞 | 正交; 磁變; 阻尼; 方板; 有限元素法; Orthotropic; Magnetorheological; Damping; Rectangular plat; Finite element method; |
語 文 | 英文(English) |
中文摘要 | 本文主要採用分析力學的方式來推導系統的運動方程式並利用有限元素法來分析含磁變彈性體正交三明治方板系統的振動特性與變化。在本文中討論了含磁變彈性體之正交三明治方板系統的動態穩定特性,其中所使用的磁變彈性體材料特性則利用複數的形式來加以描述。文中討論磁變彈性體的特性與施加的磁場強度對於正交三明治方板系統振動特性的影響與控制變化。而系統的振動特性會隨著外加磁場強度的改變而產生變化。因此,此類主動式智能材料阻尼層除了可改變系統的振動模態外,更可達到主動控制的效果。 |
英文摘要 | Vibration characteristic analysis of orthotropic rectangular sandwich plate with magnetorheological (MR) elastomer core and constraining layer is presented in this study. The orthotropic rectangular plate is covered a MR fluid core and a constraining layer in order to improve the vibrational behaviors of the system. The finite element method is utilized to derive the finite element equations of motion for the orthotropic sandwich system. The effects of the natural frequencies and loss factors of the orthotropic sandwich plate are discussed. The rheological property of the MR material can be changed and controlled by applying various magnetic fields. The modal dampings and the natural frequencies for the orthotropic sandwich plate are calculated for various magnetic fields. Besides, the effects of the strength ratio of the base plate on the natural frequencies and modal loss factors are also discussed. |
本系統中英文摘要資訊取自各篇刊載內容。