全绝缘封闭母线振动特性的分析

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1、西安理工大学硕士学位论文restraining,thenormalbusoperationstateundertheoptimalworkingcurrentandadjacentinsulatorssupportingdistance,soastoprovideatheoreticalbasisforthedesignandinstallationofthebus.KEYWORDS:bus，electricalpower,resonance,spectralanalysisVI万方数据目录目录1绪论...........................................

2、...........................11.1研究背景及意义.......................................................11.2大电流母线的类型及发展应用............................................31.2.1敞露母线..........................................................31.2.2封闭母线..........................................................41.3封闭

3、母线的国内外研究及应用现状........................................71.4本文的主要研究目标....................................................81.5本文的主要研究内容....................................................82发电机全绝缘母线的振动实验...............................................112.1母线振动的基本规律.....................................

4、..............112.1.1概述.............................................................112.1.2单跨刚性简支母线的自由振动.......................................122.1.3单跨刚性简支母线的强迫振动.......................................132.2母线振动的实验.......................................................142.2.1实验装置................

5、.........................................142.2.2实验内容.........................................................173母线振动信号的频谱分析...................................................193.1MATLAB下的频谱分析...................................................193.1.1时域抽样定理.........................................

6、............203.1.2离散傅立叶变换（DFT）............................................203.1.3快速傅立叶变换（FFT）............................................213.1.4频谱分析原理.....................................................213.2频谱图的数据分析.....................................................223.3本章小结.................

7、............................................294噪声信号的频谱分析.......................................................314.1噪声信号分析及MATLAB的实现..........................................314.1.1语音信号的频谱分析过程................................