利用ANSYS有限元软件动力分析中的谱分析、模态分析功能，对拱坝进行地震动应力分析。
Make use of table analysis, modal analysis of ANSYS finite element software motive force to analyze shake stress analysis of the arch dam.
仪器功能全面，完成了振动测试中通用的数据采集、频谱分析等功能，并添加了模态分析功能。
As far as the function of software is concerned, it completes most of general functions in vibration test, such as data acquisition, frequency spectrum analysis, and so on.
介绍了大型卧螺机自动控制及模态分析诊断系统，它包括了控制逻辑的实现、完备的数据监测和报警等功能。
This paper introduces the automatic control and modal analysis diagnostic system of a large horizontal snail machine. It includes the realization of control logic, data monitor and alarm functions.
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