TY - JOUR
T1 - COMPUTATIONAL METHOD FOR SHAPE OPTIMIZATION.
AU - Hou, J. W.
AU - Chen, Jahau Lewis
AU - Sheen, J. S.
PY - 1985/1/1
Y1 - 1985/1/1
N2 - In the direct method of shape optimum design, mesh regridding is a necessary step in order to avoid the distortion of finite element grids. The effect of internal-nodal movements on the shape design sensitivity, associated with the regridding process, has been carefully examined in this paper. It shows that the ignorance of internal-nodal movements may introduce numerical error into shape design sensitivity analysis. To take the internal-nodal movement into account, a new approach which constructs the velocity field over the element domain is presented. Although it takes more computational time, the new approach does improve the accuracy of shape design sensitivity.
AB - In the direct method of shape optimum design, mesh regridding is a necessary step in order to avoid the distortion of finite element grids. The effect of internal-nodal movements on the shape design sensitivity, associated with the regridding process, has been carefully examined in this paper. It shows that the ignorance of internal-nodal movements may introduce numerical error into shape design sensitivity analysis. To take the internal-nodal movement into account, a new approach which constructs the velocity field over the element domain is presented. Although it takes more computational time, the new approach does improve the accuracy of shape design sensitivity.
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M3 - Conference article
AN - SCOPUS:0021793623
SP - 629
EP - 638
JO - Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
JF - Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
SN - 0273-4508
IS - pt 1
ER -