Minimizing life cycle cost for subsonic commercial aircraft

Johnson, Vicki S.

doi:10.2514/3.45909

Cited by 31 publications

(10 citation statements)

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“…Similar results have been shown using MDO methodologies for aircraft design. 21 Figure 14 shows drag coefficient for the different designs. It should be noted that designs for all of the figures of merit resulted in drag coefficients lower than that of the baseline.…”

Section: Resultsmentioning

confidence: 98%

An MDO design methodology for the concurrent aerodynamic/cost design of MAGLEV vehicles

Tyll

Eaglesham

Schetz

et al. 1996

6th Symposium on Multidisciplinary Analysis and Optimization

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Section: Resultsmentioning

confidence: 98%

An MDO design methodology for the concurrent aerodynamic/cost design of MAGLEV vehicles

Tyll

Eaglesham

Schetz

et al. 1996

6th Symposium on Multidisciplinary Analysis and Optimization

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“…1 The mathematical optimization methods have been increasingly suggested to search the optimal configuration parameters during aircraft conceptual design. Traditionally, the mathematical optimization problem for the civil jet conceptual design is formulated as follows: the objective is usually to minimize the costs 2 or/and environmental impacts [3][4][5] of aircraft, the design variables are related to the parameters of aircraft configuration and engine, and the constraints are usually imposed according to the design requirements. Once such an optimization problem with the constraints is formulated, the various optimization methods, such as sequential quadratic programming (SQP) or genetic algorithm (GA), can be used to solve the optimization problem.…”

Section: Introductionmentioning

confidence: 99%

Conceptual design optimization of a wide-body commercial aircraft using a competitiveness model

Chai

2019

Proceedings of the Institution of Mechanical Engineers, Part G:

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The conceptual design optimization of wide-body commercial aircraft is very challenging today. This paper deals with the conceptual design optimization problem of a next-cycle wide-body commercial aircraft, which has many similarities to the one being co-developed by China and Russia. The most difficult weaknesses are that the design requirements cannot be traded off during the conceptual design optimization process. To overcome this issue, a competitiveness model is built up for the wide-body commercial aircraft. The analytic hierarchy process is applied to formulate the competitiveness model, which is a multi-level evaluation model. The competiveness model includes three levels, i.e. target level, criteria level, and attributes level. The target level has an output, i.e. the competitiveness of the investigated aircraft, which serves as the single objective function in the conceptual design optimization problem. The criteria level includes four elements of economics, comfort, environmental impact, and adaptability. In addition, each criterion is further divided into more attributes, which are parameters obtained from the commercial aircraft conceptual design. By using the competitiveness model, the conceptual design optimization problem is converted into an unconstrained one that can be solved easily. Two optimizations with different judgment matrices for criteria level were performed. Compared with the baseline design candidate, the overall competitiveness of the optimal design for the optimization case 1 and case 2 increased by 9.28% and 11.51%, respectively, which benefits the designers and decision-makers.

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“…In the economics design process, the basic goal is to reduce the life cycle cost, but for different customer group preferences are different, for the optimization of each component of the cost should also considered. In the design phase, aircraft life cycle cost can be decided more than 70% [2]. Therefore, how to strengthen the economics early in development of aircraft design, and runs through the whole life cycle of products, which has great significance.…”

Section: Introductionmentioning

confidence: 99%

The Research on Aircraft Economic Design

Gao¹

2014

Proceedings of the 2014 International Conference on Mechatronics, Electronic, Industrial and Control Engineering

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Economics affordability like safety, reliability, maintainability, is the inherent attributes of aircraft. Total life cost is the main economic index for aircraft. Active economic design for aircraft shows cost as independent variable. And economic design should consider total cost throughout the product development including design, manufacture, use and maintenance. In the paper, the multilevel modular analysis model on total life cycle cost has been presented. The main dimension of aircraft economics design has been analyzed, including pneumatic design, composite materials design and oriented-maintenance design. Combination prediction model of life cycle cost for aircraft with fuzzy and uncertain information has been built. The aircraft economics design by collaborative optimization has been presented by multidisciplinary optimization. The aircraft integrated economics design has been discussed, including the framework and relevant technology of aircraft integrated design. The research result can also be used to other complex systems, such as weapon systems.

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Minimizing life cycle cost for subsonic commercial aircraft

Cited by 31 publications

References 0 publications

An MDO design methodology for the concurrent aerodynamic/cost design of MAGLEV vehicles

An MDO design methodology for the concurrent aerodynamic/cost design of MAGLEV vehicles

Conceptual design optimization of a wide-body commercial aircraft using a competitiveness model

The Research on Aircraft Economic Design

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