Quest for the control on the second order derivatives: topology optimization with functional includes the state's curvature

Details Quest for the control on the second order derivatives: topology optimization with functional includes the state's curvature Quest for the control on the second order derivatives: topology optimization with functional includes the state's curvature

2010-05-18

arxiv.org/abs/1005.3111v2

Mathematics

Optimization and Control

Scientific paper

Many physical phenomena, governed by partial differential equations (PDEs), are second order in nature. This makes sense to pose the control on the second order derivatives of the field solution, in addition to zero and first order ones, to consistently control the underlaying process. However, this type of control is nontrivial and to the best of our knowledge there is nigher a theoretic nor a numeric work in this regard. The present work goals to do the first quest in this regard, examining a problem of this type using a numerical simulation. A distributed parameter identification problem includes the control on the diffusion coefficient of the Poisson equation and a functional includes the state's curvature is considered. A heuristic regularization tool is introduced to manage codimension-one singularities during the functional analysis. Based on the duality principles, the approximate necessary optimality conditions is found. The system of optimality conditions is solved using a globalized projected gradient method. Numerical results, in two- and three-dimensions, implied the possibility of posing control on the second order derivatives and success of the presented numerical method.

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