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| The figure shows that the percentage error in the damping is much greater than that found in the natural frequency, a tendency we have found in many geometries. In addition, as the natural frequency of the bubble tends to large values (i.e. the bubbles become small), the error in both becomes small. An explanation as to why these trends occur be found in the reference on the previous slide. The lesson is that the inversion can only be as good as the model, and that sometimes it is very difficult to model the real world precisely. | |
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