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| IKPIR Atuhor: |
Boštjan BRANK // 1.08 Published scientific conference paper
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| Year: |
2007 |
| Citation: |
KEGL, Marko, BRANK, Boštjan, HARL, Boštjan, OBLAK,
Maks. Optimizacija oblike, debeline in "najneugodnejše imperfektnosti" uklonsko
občutjivih lupin. V: KORELC, Jože (ur.), ZUPAN, Dejan (ur.). Kuhljevi dnevi
2007, Snovik, 20.-21. september 2007. Zbornik del. Ljubljana: Slovensko
društvo za mehaniko, 2007, str. 107-114. |
| Summary: |
The paper presents an efficient
approcah to shape optimization of elastic shell structures under stability
constraints. To reduce stability-related problems, a special form of the
optimization problem is proposed. Due to this special form, the response
analysis can be undertaken by using the usual incremental procedure.
Additionally, one eigenvalue problem has to be solved at each equilibrium point.
This analysis enables the computation of estimated values of the objective and
constraint functions as well as their derivatives with respect to the design
variables. The procedure assumes the presence of limit critical points only
since bifurcation critical points are much more difficult to handle. Bifurcation
points are avoided by introducing adequate parameters which cause asymetric
imperfection of the structural shape. It turns out that the worst-case values of
these parameters may be obtained easily during the optimization procedure.
[COBISS.SI-ID 11702038]
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| Typology: |
1.08 Published scientific conference paper |
| COBISS_ID: |
11702038 Full COBISS entry |
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Entered 2009/06/10 11:56
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