Structural Modification for the Assignment of Zeros Using Measured Receptances

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Active vibration suppression by pole-zero placement using measured receptances (2008, background): “Recently much attention has been focussed on inverse eigenvalue problems for assigning natural frequencies and mode shapes [7], vibration nodes [8] and anti-resonances [9] by structural modification.”
Eigenstructure assignment in undamped vibrating systems: A convex-constrained modification method based on receptances (2012, methodology): “In particular, FRF data have been directly employed to calculate structural modification for the assignment of antiresonances [7,8], system latent roots [9], natural frequencies [8], vibration modes [10,11].”
Assignment of natural frequencies by an added mass and one or more springs (2004, background): “Mottershead [10] exploited the concept of the adjoint system in order to determine modifications that assign particular zeros to a structure.”