首先介绍模态相关性分析的一般方法。
First, the general methods of modal correlation evaluation are presented.
这是由于全球变暖中对流层静力稳定度的增强，与IOD模态相关的纬向风异常减弱。
The zonal wind anomalies associated IOD are found to weaken, likely due to increased static stability of the troposphere from global warming.
建立了发动机实体和有限元模型，介绍了计算模态分析和模态相关性分析的一般方法与理论。
The method of the calculated modal analysis and the modal correlation is introduced, and the geometrical model and finite element model are established.
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