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題名 | 機械系統自然頻率之移動 |
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作者 | 劉運鴻; | 書刊名 | 台電工程月刊 |
卷期 | 568 1995.12[民84.12] |
頁次 | 頁55-64 |
分類號 | 446.1 |
關鍵詞 | 自然頻率; 質量矩陣; 剛度矩陣; 動態彈性矩陣; 扭轉振動; Natural frequency; Mass matrix; Stiffness matrix; Dynamic flexibility matrix; Torsional vibration; |
語文 | 中文(Chinese) |
中文摘要 | 本文介紹機械系統自然頻率移動之方法。首先介紹振動的基本理論並導 出振動方程式。按著以改變質量及改變剛度的方式,說明這些改變對自然頻率移 動之影響,並以圖示法表明,簡單明瞭。此外,以指定移動頻率之大小,反求質 量或剛度需改變若干之綜合法,亦在本文介紹之。最後以一汽輪發電機組扭轉振 動自然頻率之移動為例,說明本文所介紹之方法。 |
英文摘要 | This paper introduces a methodology for shift of naturalfrequency of a mechanical system. At first, the basic vibrationtheory is introduced and the vibration equations are derived.Then, the effects of natural frequency shift by changing massor stiffness of a system are explained and shown by figuremethod. Second, a method called synthesis method whichassigns the shift window of natural frequency and thencalculates the required mass and stiffness change is introduced.Finally, shift of torsional natural frequency of a steam turbinegenerator unit is taken as an example for explanation. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。