Aircraft Family Design Using Enhanced Collaborative Optimization

Aircraft Family Design Using Enhanced Collaborative Optimization

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Significant progress has been made toward the development of multidisciplinary design optimization (MDO) methods that are well-suited to practical large-scale design problems. However, opportunities exist for further progress. This thesis describes the development of enhanced collaborative optimization (ECO), a new decomposition-based MDO method. To support the development effort, the thesis offers a detailed comparison of two existing MDO methods: collaborative optimization (CO) and analytical target cascading (ATC). This aids in clarifying their function and capabilities, and it provides inspiration for the development of ECO. The ECO method offers several significant contributions. First, it enhances communication between disciplinary design teams while retaining the low-order coupling between them. Second, it provides disciplinary design teams with more authority over the design process. Third, it resolves several troubling computational inefficiencies that are associated with CO. As a result, ECO provides significant computational savings (relative to CO) for the test cases and practical design problems described in this thesis.4.5.4 Summary of Results This section briefly describes results from the solution of the airfoil analysis problem. Two methods were ... The key results are as follows. (1) Fixed point ... In addition, it was slowed by its Matlab implementation and by its use of Matlaba#39;s built-in suite of optimizers. (Matlaba#39;s ... The Reynolds number is 500, 000, and the flow is assumed incompressible (i.e., Mach = 0). In Figure 4.1anbsp;...


Title:Aircraft Family Design Using Enhanced Collaborative Optimization
Author:
Publisher:ProQuest - 2008
ISBN-13:

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