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多軸振動試驗系統(tǒng)傳遞函數(shù)估計的數(shù)值仿真

Numerical simulation of frequency response matrix estimation in multi-axis vibration test control system

  • 摘要: 文章應用頻響矩陣建立了多軸振動系統(tǒng)輸入輸出之間的數(shù)學模型。通過數(shù)值仿真的方法，研究了多軸振動試驗中傳遞函數(shù)估計的方法，針對不同激勵信號組合、不同估計算法和使用多次平均技術情況下進行了數(shù)值模擬，并對結(jié)果進行了分析。可以為多軸振動試驗控制系統(tǒng)的研究提供參考。

     

    Abstract: This paper discusses various methods for frequency response matrix estimation in pre-tests of multi-axis vibration test control system through numerical simulation, in which a number of independent random excitation signals are used to drive the multi-axis system, and H1 estimate algorithm and over 20 times average are employed for a better result.

     

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