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MEASUREMENT OF THE MODAL SHAPES OF INHOMOGENEOUS CANTILEVERS USING OPTICAL BEAM DEFLECTION

机译:利用光学光束偏转测量不均匀悬臂梁的模态形状

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摘要

The study of free vibrations of systems such as simple cantilevers has been mainly concerned with the determination of the eigenvalues (frequencies) and eigenfunctions (modal shapes). A technique has been developed, using optical beam deflection, to measure the modal shape of a cantilever non-invasively at each modal frequency. A knowledge of the modal shapes of very small cantilevers incorporating suitable actuators is important in the application of active vibration control to micromechanical structures. [References: 12]
机译:对诸如简单悬臂之类的系统的自由振动的研究主要涉及特征值(频率)和特征函数(模态形状)的确定。已经开发出一种利用光束偏转来无创地在每个模态频率下测量悬臂的模态形状的技术。结合合适致动器的非常小的悬臂的模态形状的知识对于将主动振动控制应用于微机械结构非常重要。 [参考:12]

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