相鄰結構系統之阻尼器最佳參數與主動控制研究

Investigation on optimal damper parameters and active control of adjacent structural systems

曾信瑋(Hsing-Wei Tseng)

中原大學/工學院/土木工程研究所/碩士(2013年)

https://doi.org/10.6840/CYCU.2013.00369

摘要

本研究探討兩棟相鄰不等高結構物間裝設阻尼器之平行結構系統的動力特性。首先，以自由振動為基礎，利用複數模態分析計算系統各個模態之自然頻率、阻尼頻率、阻尼比、振動型態，以及阻尼比與阻尼器阻尼係數之關係曲線，並推估各個模態之最佳阻尼比與對應的阻尼器阻尼係數；接著，在阻尼器最佳參數的條件下，執行強迫振動，亦即當平行結構系統受到地震力作用時，分別進行被動控制，以及利用具有可處理系統不確定性且運算簡等優點的模糊滑動模式控制與類神經網路控制兩類演算法進行主動控制；最後，比較系統在未控制、被動控制、模糊滑動模式控制與類神經網路控制等情況下，評估阻尼器的振動控制效能。透過研究成果可瞭解平行結構系統之動力特性與耦合行為，以及阻尼器對平行結構系統振動控制之成效，期望提供國內既有集合式住宅結構安全評估，以及新建集合式住宅結構設計分析的參考。

關鍵字

滑動模式 ； 類神經網路 ； 模糊理論 ； 複數模態 ； 平行結構

並列摘要

The objective of this study is to detailedly investigate the dynamic characteristics of adjacent structures with attached dampers. Based on the free vibration theory, the complex modal analysis is presented to calculate the natural frequency, damped frequency, damping ratio, mode shape and the curve of damping ratio versus damper coefficient for each mode of the system. The optimal damping ratio and the corresponding damper coefficient for each of the system can therefore be obtained. Under considerations of these optimal damper parameters, the forced vibration analysis is conducted to calculate the time histories of structural response under seismic excitation for four types of systems: without control, passive control, fuzzy sliding mode control and neural network control. The results can be used to assess the effectiveness of attached dampers, as well as to capture the dynamic characteristics of adjacent structures.

並列關鍵字

Sliding Mode. ； Neural Network ； Fuzzy Theory ； Complex Mode ； Adjacent Structures

參考文獻

周偉權 (2009)，「模糊滑動模式於相鄰結構之控制」，中原大學土木工程研究所碩士論文，中壢市，台灣。

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