O'Boy, Daniel Krylov, Victor V. Vibration of a rectangular plate with a central power-law profiled groove by the Rayleigh-Ritz method The prediction of natural frequencies of rectangular plates where a profiled indentation is present is made using a Rayleigh-Ritz variational energy method. Panels with holes are often found for access cables and access gaps, and it is shown that the application of damping to the profile leads to a more efficient method of reducing vibration than covering a whole rectangular plate, which is advantageous where weight saving is necessary. Vibration;Tapering;Profiled;Powerlaw;Thickness;Variational;Mechanical Engineering;Engineering not elsewhere classified 2015-12-03
    https://repository.lboro.ac.uk/articles/journal_contribution/Vibration_of_a_rectangular_plate_with_a_central_power-law_profiled_groove_by_the_Rayleigh-Ritz_method/9227099