...借由有限元素分析其最大的位移差,找出感测器放置最佳位置,以及求出管 的自然频 （National Frequency）及模态振型（Modal Shape）;并配合示波器所攫取的讯号, 用MATLAB软体做快速傅 转换（Fast Fourier Transform;FFT）,所得到的结果 相验证,求取U型管每个模态...
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文章摘要信息 关键词 ： 模态振型;振动控制;阻尼处理;优化 [gap=1284]Keywords : mode shape;vibration control;damping treatment;optimizationzz')" href="#">
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During the research process,we have mainly done the following works:⑴On the paper,we have studied cantilever by the finite element analysis method to conduct their theoretical modal analysis,and obtained their modal frequencies and modal shape.
在该方法研究过程中,我们主要做了以下工作:⑴本文以悬臂梁结构为研究对象,利用有限元分析的方法对它们进行了理论模态分析,得出了它们的模态频率和模态振型。
参考来源 - 采用工作振动响应的机械结构的健康监测方法的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
按照这种方法进行下去，来观察模态振型将是非常有意义的。
Along the way, it would be very beneficial to look at the mode shapes.
当支撑梁的弹簧非常软时，梁的模态振型看起来非常像刚体。
When the springs supporting the beam are very soft, then the mode shape for the beam looks very much like a rigid body.
我们很快可以发现，某些模态振型信息是由结构外部极大地支配的。
We can quickly see that some of the mode shape information is strongly controlled by the exterior of the structure.
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