Why we determine natural frequency of a bimetalic plate?
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In FE(ANSYS) the natural frequency is given for the whole plate. Does this acceptable to find the natural frequency. Since we do experimental modal analysis for various points, and the value differ from point to point. It show clearly that Fn varies from point to point and its acceptable because of the mass stiffness variation. But how to correlate the value with overall natural frequency of the plate with the localized natural frequency. And/Or how to find the common natural frequency of the plate from the experimental modal analysis
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