| 利用FIR滤波器生成随机振动试验驱动信号的新方法 |
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| 引用本文： | 贺旭东,陈怀海.利用FIR滤波器生成随机振动试验驱动信号的新方法[J].航空学报,2003,24(3):220-222. |
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| 作者姓名： | 贺旭东 陈怀海 |
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| 作者单位： | 南京航空航天大学,振动工程研究所,江苏,南京,210016 |
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| 基金项目： | 航空基金资助项目 (0 1I5 2 0 60 ) |
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| 摘 要： | 阐述了一种利用有限冲击响应(FIR) 滤波器生成随机振动试验驱动信号的新方法。该方法通过设计一个FIR 滤波器对白噪声序列进行滤波,使滤波器输出序列的功率谱密度满足试验驱动信号的要求。在随机振动试验控制中,将FIR 滤波器和试验的受控对象组成增广系统,这将有助于简化对控制系统的分析和设计。
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| 关 键 词： | 随机振动试验 振动控制 FIR滤波器 |
| 文章编号： | 1000-6893(2003)03-0220-03 |
| 修稿时间： | 2002年5月16日 |
Generating the Driving Signals for Random Vibration Test by FIR Filter |
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| HE Xu-dong,CHEN Huai-hai.Generating the Driving Signals for Random Vibration Test by FIR Filter[J].Acta Aeronautica et Astronautica Sinica,2003,24(3):220-222. |
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| Authors: | HE Xu-dong CHEN Huai-hai |
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| Institution: | Institute of Vibration Engineering Research; Nanjing University of Aeronautics and Astronautics; Nanjing 210016; China |
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| Abstract: | A new method is set forth in the paper for generating the driving signals for random vibration tests. The random driving signal sequence can be obtained by linearly filtering to the white noise sequence using finite impulse response(FIR)filters. A forming method of the FIR filters is introduced and an example is presented to show the effects of the method. The results are satisfactory. The FIR filters system can also be combined with the structure to be controlled to form a broad system. It will simplify the analysis and design to the whole control system with the broad system. |
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| Keywords: | random vibration test vibration control FIR filter |
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