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Special issue on Operational Modal Analysis

机译：运营模式分析特刊

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摘要

Operational Modal Analysis (OMA) is not really a new discipline; it has been present from the very beginning of the development of modal testing and analysis going back to the sixties and early seventies.rnIn those days, the term "Operational Modal Analysis" was not common, OMA testing was mainly denoted "ambient response" testing and was solely used for testing of large civil engineering structures. On such structures it was difficult to perform good vibration measurements due to noise and synchronization problems, and performing identification mainly relied on looking at spectral densities-what one would call Operational Deflection Shape (ODS) analysis nowadays. Because of the shortcomings of OMA back in those days, the approach was not really accepted as a reliable source of information.
机译：操作模态分析（OMA）并不是一门新兴的学科。它从模态测试和分析的发展的最开始就可以追溯到六十年代和七十年代初。rn在那时，术语“操作模态分析”并不普遍，OMA测试主要表示为“环境响应”测试。仅用于大型土木工程结构的测试。在这样的结构上，由于噪声和同步问题而难以执行良好的振动测量，并且执行识别主要依赖于查看光谱密度-如今人们将其称为“操作偏转形状”（ODS）分析。由于OMA当时的缺点，该方法并未真正被接受为可靠的信息来源。

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  • 来源
    《Mechanical systems and signal processing》 |2010年第5期|1209-1212|共4页
  • 作者

    Rune Brincker; rnPoul Henning Kirkegaard;

  • 作者单位

    Department of Industrial and Civil Engineering, University of Southern Denmark, Denmark Arhus School of Engineering, Arhus University, Denmark;

    Department of Civil Engineering, Aalborg University, Denmark;

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