TY - GEN
T1 - Structural topology optimization using two-level dynamic condensation scheme
AU - Park, Soohyun
AU - Kim, Hyungi
AU - Cho, Maenghyo
AU - Kim, Heung Soo
PY - 2006
Y1 - 2006
N2 - Structural topology optimization to maximize the eigenvalue is studied. Ira this paper, we apply the two-level condensation scheme(TLCS) io topology optimization problems. The TLCS scheme has two steps. At the first step, we select the candidate element area on the basis of Rayleigh energy estimation. Tben the second step consists of the final reduced system using sequential elimination scheme to the candidate element area selected in the first step. Mode tracking method, so called MAC, is introduced to enhance the accuracy of sensitivity analysis. Design problems of beam and plate are solved to maximize eigenvalue and linear summation of eigenvalues. The accuracy of the result from the reduced system analysis is same as that of the fuD system analysis. The two-level condensation scheme can provide efficiency and accuracy to the topological design optimization of the large scale structure for dynamic problem.
AB - Structural topology optimization to maximize the eigenvalue is studied. Ira this paper, we apply the two-level condensation scheme(TLCS) io topology optimization problems. The TLCS scheme has two steps. At the first step, we select the candidate element area on the basis of Rayleigh energy estimation. Tben the second step consists of the final reduced system using sequential elimination scheme to the candidate element area selected in the first step. Mode tracking method, so called MAC, is introduced to enhance the accuracy of sensitivity analysis. Design problems of beam and plate are solved to maximize eigenvalue and linear summation of eigenvalues. The accuracy of the result from the reduced system analysis is same as that of the fuD system analysis. The two-level condensation scheme can provide efficiency and accuracy to the topological design optimization of the large scale structure for dynamic problem.
UR - http://www.scopus.com/inward/record.url?scp=34147214059&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:34147214059
SN - 1563478080
SN - 9781563478086
T3 - Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
SP - 4782
EP - 4800
BT - Collection of Technical Papers - 47th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
T2 - 47th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
Y2 - 1 May 2006 through 4 May 2006
ER -