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• W2964306458 startingPage "101" @default.
• W2964306458 abstract "Piezo modal sensors/actuators are devices that utilize the piezoelectric effect to measure/excite a particular mode while remaining insensitive to the non-targeted modes. The design of such transducers is typically confined to determining the location of tailor-made electrodes of opposite polarity, meaning one seeks to determine which electrode areas have positive polarity (+1) and which areas are negative (-1). Surprisingly, these electrode profiles can be obtained as the solutions of a linear programming problem that elegantly models the design problem. Designs resulting from this process, however, typically exhibit isolated features of like-polarity, and this characteristic typically becomes more pronounced as additional modes are considered. These isolated features pose significant challenges from a manufacturing and operation point of view, as each feature must be connected to a current source, thereby resulting in complex or cumbersome wiring schemes. This work introduces a connectivity constraint on the electrode profiles to dramatically simplify electrode phase connectivity and therefore the required wiring schemes. The resulting design problem is solved using density-based topology optimization methods and numerical examples confirm that piezo modal transducers can be designed with simply-connected electrode phases, thereby providing efficient performance together with improved manufacturability." @default.
• W2964306458 created "2019-07-30" @default.
• W2964306458 creator A5012516861 @default.
• W2964306458 creator A5038917682 @default.
• W2964306458 date "2019-11-01" @default.
• W2964306458 modified "2023-10-18" @default.
• W2964306458 title "Topology optimization of piezo modal transducers considering electrode connectivity constraints" @default.
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• W2964306458 doi "https://doi.org/10.1016/j.cma.2019.07.012" @default.
• W2964306458 hasPublicationYear "2019" @default.
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