Using Algorithmic Differentiation to Increase Sensitivity of Piezoelectric Transducers with Respect to Material Parameters

Event Sponsor: 
Mathematics and Computer Science Division LANS Seminar
Start Date: 
Aug 24 2016 - 3:00pm
Building/Room: 
Building 240/Room 1404-1405
Location: 
Argonne National Laboratory
Speaker(s): 
Benjamin Jurgelucks
Speaker(s) Title: 
University of Paderborn

Estimation methods for material parameter identification of piezoelectric transducers require a high sensitivity of the measurable quantity considered. Recently published methods try to increase the sensitivity by optimizing the geometry of the piezoelectric specimen, however, due to many locally optimal points of the target function the optimization does not give the expected results. Using algorithmic differentiation the author investigates the likely origin of these locally optimal points allowing an optimization consistent to expectation.

Miscellaneous Information: 

Coffee & Goodies will be served.

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