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结构的动态特性是当前各种机械和工程中最重要的研究内容之一,模态分析是研究结构动特性的重要手段,国内外各行业都在普遍地采用。但是,通过模态分析,只能得到结构的动态特性;至于如何对结构进行具体修改,从而改变其固有特性以达到预期的目的,还需要凭借经验,在实物上进行修改后,再次进行模态分析试验。这样作需要经过多次的修改和实验验证,方有可能达到目的,而且这种最后的修改方案往往还不是最优的。
The dynamic characteristics of the structure is one of the most important research contents in all kinds of machinery and engineering. Modal analysis is an important method to study the dynamic characteristics of the structure. It is widely used in various industries at home and abroad. However, through modal analysis, only the dynamic characteristics of the structure can be obtained; as to how to make specific modifications to the structure to change its inherent characteristics in order to achieve the intended purpose, but also need to experience changes in the physical object, and then perform the modal again Analysis test. This need to undergo many modifications and experimental verification, it is possible to achieve the goal, and this final modification is often not optimal.