| 多输入多输出冲击振动试验研究 |
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| 引用本文： | 徐浩,陈怀海,游伟倩.多输入多输出冲击振动试验研究[J].振动．测试与诊断,2010,30(2):143-148. |
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| 作者姓名： | 徐浩 陈怀海 游伟倩 |
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| 作者单位： | 南京航空航天大学航空宇航学院,南京,210016 |
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| 基金项目： | 国家自然科学基金，航空支撑科技基金资助项目，江苏省普通高校研究生科研创新计划资助项目 |
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| 摘 要： | 基于多输入多输出线性系统控制理论,提出了通过时频转换求取多个振动台输入的方法,并用MATLAB对算法进行了数值仿真.在悬臂梁上进行双振动台冲击振动模拟试验,用LabVIEW编写控制软件驱动PXI总线仪器实现输入信号的发生及响应信号的采集、分析与处理.试验结果表明.被控两点的输出加速度信号满足了预定要求,从而验证了本文方法在工程应用中的有效性.
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| 关 键 词： | 多输人多输出 冲击振动 时频转换 波形复现 振动环境试验 |
Input Signal Identification in Multiple-Input and Multiple-Output Shock Vibration Test |
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| Xu Hao,Chen Huaihai,You Weiqian.Input Signal Identification in Multiple-Input and Multiple-Output Shock Vibration Test[J].Journal of Vibration,Measurement & Diagnosis,2010,30(2):143-148. |
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| Authors: | Xu Hao Chen Huaihai You Weiqian |
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| Abstract: | Based on the multiple input and multiple output (MIMO) linear systemt heory, a time frequency transform method was put forward to calculate the input data of a vibration generator system, and its algorithm was simulated by using M ATLAB. A shock vibration test with two exciters was conducted on a cantilever be am, and the control software driving the PXI bus was programmed in LabVIEW in or der to generate the input signals and sample the response signals. The results s how that the multiple output signals can be controlled in the tolerance range of the reference signals. The method is proved to be feasible in engineering pract ice. |
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| Keywords: | multiple input and multiple output shock vibration time frequency transform wave regain vibration environment test |
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