The paper proposes a methodological approach to support the multi-objective (i.e. cost and structural performance) optimization of complex systems, typical of the oil & gas sector. The complexity is managed through a double-level of optimization. The first one, based on simplified product models (1-D and 0-D), considers an analytical approach for the structural behavior and a parametric one for the cost estimation. The second level considers the use of a 3-D FEM solver for structural simulations, and an analytical tool for the cost estimation. As case study, the paper proposes the design optimization of an oil & gas chimney for gas turbines. The workflow analyzed during the case study describes the use of a multi-objective and multilevel approach to optimize cost, weigh, and structural behavior of oil & gas ducts.
Cicconi, P., Castorani, V., Germani, M., Mandolini, M., Vita, A. (2017). A multi-objective and multi-level design optimization method for oil & gas ducts. In Proceedings of the ASME Design Engineering Technical Conference. American Society of Mechanical Engineers (ASME) [10.1115/DETC201767977].