This paper is to analyze and study on the vibration measurement and analysis technology, especially on the testing modal analysis method. The advantages and disadvantages of the limited-time Fourier Transform and Laplace Transform modal analysis are analyzed.
本文对振动的测试和分析技术做了比较深入的分析和研究，特别是试验模态分析方法做了深入的研究，对现有基于有限时长的傅立叶变换和基于拉普拉斯变换的信号谱分析方法的优缺点做了理论分析，提出了基于拉普拉斯变换的模态分析和参数识别方法，通过理论分析和算例论证，论证了与基于付氏变换模态分析方法相比，基于拉氏变换是一种高精度的模态参数识别方法。
参考来源 - 振动信号的测试与分析及其软件系统的开发·2,447,543篇论文数据，部分数据来源于NoteExpress
I hope this helps to explain some of the more important concerns when impact testing. If you have any other questions about modal analysis, just ask me.
我希望这有助于解释锤击试验时的某些重要的关心事项。如果你有关于模态分析的任何其他问题，尽管问我好了。
Finally, Based the analysis of theory modal, a modal testing program has been designed according to the existing test equipments, which prepares for the next testing of the vibration and noise.
在理论模态分析的基础上，根据现有的试验设备设计了合理的试验方案，为下步的振动与噪声的试验做了必要的理论准备。
After the modal analysis of the housing of the SKR-4DL type winding machine with finite element method, the virtual instrument was applied to the on-line vibration property testing on the housing.
采用有限单元法对SKR - 4dl绕线机箱体进行模态分析后，利用虚拟仪器对箱体进行振动特性的在线检测。
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