The goal of a modal test is to extract the accurate dynamic system characteristics.

模态试验的目的是要提取准确的系统动力学特性。

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In this paper, a modal test method for quality evaluation of masonry structures is presented.

给出了一种砌体结构质量的振动模态检测方法。

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So what would ever posses anyone to perform a modal test using an operating random excitation.

那么是什么让人想到要用工作随机激励来进行模态试验？

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In the outer ring, it can involve a complicated analysis using the multi-modal, non-exclusive test originating with the Department of Justice, and later adopted by the Courts.

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