Discrete multicriteria reliability-based optimization of spatial trusses

• Autorzy: Jendo S. , Paczkowski W. M. , Silicka E.
• Języki publikacji: EN

Abstrakty

EN

The paper presents problem of discrete multicriteria optimization of two-layer regular orthogonal spatial trusses. Three criteria of evaluation are taken into account, namely: minimum of weight, maximum of reliability and maximum of stiffness of the structure. To simplify the problem, decomposition techniques are applied. The decision variables are cross-sections of the truss members. The best possible cross section is selected for each bar from a discrete catalogue. Other decision variables (coordinated variables) describe also the geometry of the structure. The multicriteria reliability-based algorithm allows for evaluating the objective functions values and then finding sets of nondominated evaluations and solutions. Reliability of the structure is expressed by the Hasofer–Lind reliability index beta.

Słowa kluczowe

EN

optimization; spatial trusses; discrete multicriteria

PL

optymalizacja; konstrukcja kratowa

• Wydawca: Instytut Podstawowych Problemów Techniki PAN
• Czasopismo: Computer Assisted Mechanics and Engineering Sciences
• Rocznik: 2007
• Tom: Vol. 14, No. 3
• Strony: 485--496
• Opis fizyczny: Bibliogr. 18 poz., rys., tab.

Twórcy

autor

Jendo S.

autor

Paczkowski W. M.

autor

Silicka E.

• Polish Academy of Science, Institute of Fundamental Technological Research, Warsaw

Bibliografia

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