Forward and inverse problems in piezoelectricity using isogeometric symmetric Galerkin boundary element method and level set method

2020 ◽  
Vol 113 ◽  
pp. 118-132
Author(s):  
B.H. Nguyen ◽  
S.S. Nanthakumar ◽  
Y.Q. He ◽  
H.D. Tran ◽  
K. Hackl ◽  
...  
Keyword(s):  
Boundary Element Method ◽  
Inverse Problems ◽  
Boundary Element ◽  
Level Set Method ◽  
Level Set ◽  
Galerkin Boundary Element Method ◽  
Element Method

scholarly journals A topology optimisation for three-dimensional acoustics with the level set method and the fast multipole boundary element method

2014 ◽  
Vol 1 (4) ◽  
pp. CM0039-CM0039 ◽  
Author(s):  
Hiroshi ISAKARI ◽  
Kohei KURIYAMA ◽  
Shinya HARADA ◽  
Takayuki YAMADA ◽  
Toru TAKAHASHI ◽  
...  
Keyword(s):  
Boundary Element Method ◽  
Boundary Element ◽  
Level Set Method ◽  
Level Set ◽  
Three Dimensional ◽  
Topology Optimisation ◽  
Fast Multipole ◽  
Element Method

1502 A topology optimization for 2D acoustics with the boundary element method and the level set method

2015 ◽  
Vol 2015.25 (0) ◽  
pp. _1502-1_-_1502-10_
Author(s):  
Moemi HANADA ◽  
Hiroshi ISAKARI ◽  
Toru TAKAHASHI ◽  
Toshiro MATSUMOTO
Keyword(s):  
Topology Optimization ◽  
Boundary Element Method ◽  
Boundary Element ◽  
Level Set Method ◽  
Level Set ◽  
Element Method

scholarly journals COUPLING BOUNDARY ELEMENT METHOD WITH LEVEL SET METHOD TO SOLVE INVERSE PROBLEM

2017 ◽  
Vol 7 (1) ◽  
pp. 80-83 ◽  
Author(s):  
Tomasz Rymarczyk ◽  
Paweł Tchórzewski ◽  
Jan Sikora
Keyword(s):  
Inverse Problem ◽  
Boundary Element Method ◽  
Boundary Element ◽  
Level Set Method ◽  
Level Set ◽  
Optimization Problems ◽  
Adjoint Equation ◽  
Iteration Step ◽  
Boundary Perturbations ◽  
Element Method

The boundary element method and the level set method can be used in order to solve the inverse problem for electric field. In this approach the adjoint equation arises in each iteration step. Results of the numerical calculations show that the boundary element method can be applied successfully to obtain approximate solution of the adjoint equation. The proposed solution algorithm is initialized by using topological sensitivity analysis. Shape derivatives and material derivatives have been incorporated with the level set method to investigate shape optimization problems. The shape derivative measures the sensitivity of boundary perturbations. The coupled algorithm is a relatively new procedure to overcome this problem. Experimental results have demonstrated the efficiency of the proposed approach to achieve the solution of the inverse problem.

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