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題名 | Analyses and Applications of Nonlinear Liquid Systems on Vibration Isolation |
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作者 | Li, Wenlung; Wei, Yu-yen; | 書刊名 | 應用聲學與振動學刊 |
卷期 | 2:2 2010.10[民99.10] |
頁次 | 頁95-106 |
分類號 | 446.8 |
關鍵詞 | 流體; 非線性; 軟彈簧; 變動質量; 隔振器; Liquid systems; Non-Linear systems; Softening spring; Variable mass; Vibration isolator; |
語文 | 英文(English) |
中文摘要 | 使用一些非線性軟性元件對於振動抑制是有效的。然而,大多數的應力應變經驗公式並不精確且有著材料以及尺寸上的侷限。因此值得發展他種的非線性隔振器來改善。吾人希望該系統效應類似於使用一軟彈簧之系統,而進一步在一定程度上可自由地設計各式各樣的軟彈簧項次。特別地是,流體將用於構成此隔振系統。 在本報告中介紹了三種型態的非線性流體系統(NLS),分別是浮力型、交換型以及承載型,他們可能爲變動質量系統。本研究也推導了這些系統運動方程式以驗證其非線性。本文對一些範例造型進行數值模擬,分析結果顯示其具有軟效應。本文展示了一種非線性流體系統的實驗架構以供未來驗證其軟效應。本文對使用非線性流體系統作爲隔振器提出一些指引與建議。 |
英文摘要 | Softening nonlinear elements are usually effective for vibration reduction. However, most stress-train relations of structural systems are not exact and have limitation of materials and scale. On the other hand, one is desirable to develop nonlinear isolators to improve vibrations. Anticipating the effect of such a system is similar to a softening spring system, one can have a certain extend to design diverse kinds of softening spring terms. Especially, liquid is used to build isolation systems. In this paper, three types of nonlinear liquid systems (NLS) are introduced, which are the exchange, buoyance and loading types. In fact, they are variable mass systems. The equations of motion of these systems are also derived to verify their nonlinearities. Numerical simulations are followed for several example shapes. The analysis results show that softening spring effects. An experimental model is displayed to verify its softening spring effects in the next steps. This paper gives guidelines and suggestions for using NLS as vibration isolators. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。