Integrated cost/weight optimization of aircraft structures

Parts of this paper have been presented as: Kaufmann M, Zenkert D, Wennhage W. "Integrated cost/weight optimization of composite skin/stringer elements", Proceedings of ICCM-16, Kyoto (2007). QC 20100723.
A methodology for a combined cost/weight optimization of aircraft components is proposed. The objective function is formed by a simplified form of direct operating cost, i.e. by a weighted sum of the manufacturing costs and the component weight. Hence, the structural engineer can perform the evaluation of a design solution based on economical values rather than pure cost or weight targets.The parameter that governs the balance between manufacturing cost and weight is called weight penalty and incorporates the effect of fuel burn, environmental impact or contractual penalties due to overweight. Unlike previous work, the analytical cost model and structural models are replaced by commercially available software packages that allow a more realistic model of the manufacturing costs; further, arbitrary constraints for the structural analysis can be implemented. By means of parametric studies it is shown that the design solution strongly depends on the magnitude of the weight penalty.

TEKNIK OCH TEKNOLOGIER Maskinteknik Annan maskinteknik hsv//swe
ENGINEERING AND TECHNOLOGY Mechanical Engineering Other Mechanical Engineering hsv//eng
Cost/Weight Optimization
Operating Cost
Weight Penalty
Composite Structures
Mechanical engineering
Maskinteknik
Other industrial engineering and economics
Övrig industriell teknik och ekonomi

Zenkert, Dan,1961-KTH,Farkost och flyg,Lightweight Structures(Swepub:kth)u1g11y0a (author)
Wennhage, Per,1966-KTH,Farkost och flyg,Lightweight Structures(Swepub:kth)u1dxfjg3 (author)
KTHFarkost och flyg (creator_code:org_t)

In:Structural and multidisciplinary optimization (Print)Berlin Heidelberg : Springer41:2, s. 325-3341615-147X1615-1488

By the author/editor: Kaufmann, Markus ...; Zenkert, Dan, 19 ...; Wennhage, Per, 1 ...

About the subject

ENGINEERING AND TECHNOLOGY: ENGINEERING AND ...; and Mechanical Engin ...; and Other Mechanical ...

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