Multi-attribute tradespace exploration as front end for effective space system design
Multi-attribute tradespace exploration as front end for effective space system design
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DOI：
10.2514/1.9204
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发表时间：
2004-01-01
影响因子：
1.6
通讯作者：
Diller, NP
中科院分区：
文献类型：
--
作者：
Ross, AM;Hastings, DE;Diller, NP
由于无法系统地处理空间系统早期设计阶段存在的高度模糊性，导致设计周期长、重复性强和成本高。介绍和描述了一个过程，以捕捉决策者的喜好，并使用它们来生成和评估众多的空间系统设计，同时提供一个共同的指标，可以很容易地在整个设计企业进行沟通。通过正式的公用事业访谈和分析进行沟通，使工程师能够更好地了解系统的关键驱动因素，并允许对设计贸易空间进行更彻底的探索。多属性贸易空间探索与并行设计，一个过程中纳入决策理论的模型和模拟为基础的设计，已被应用到几个空间系统项目在马萨诸塞州理工学院。初步结果表明，该过程可以提高沟通质量，以更快地解决项目模糊性，并使工程师能够为多个利益相关者发现更好的价值设计。该过程还集成到一个并行设计环境中，以促进知识的重要驱动程序转移到更高保真的设计阶段。形式效用理论提供了一种机制，以弥合不同背景和不同需求的专家之间的语言障碍，例如，科学家，工程师，管理人员等多属性的贸易空间探索与并行设计夫妇决策者更紧密地设计，最重要的是，保持他们的存在之间的正式审查。
The inability to approach systematically the high level of ambiguity present in the early design phases of space systems causes long, highly iterative, and costly design cycles. A process is introduced and described to capture decision maker preferences and use them to generate and evaluate a multitude of space system designs, while providing a common metric that can be easily communicated throughout the design enterprise. Communication channeled through formal utility interviews and analysis enables engineers to better understand the key drivers for the system and allows for a more thorough exploration of the design tradespace. Multi-attribute tradespace exploration with concurrent design, a process incorporating decision theory into model- and simulation-based design, has been applied to several space system projects at the Massachusetts Institute of Technology. Preliminary results indicate that this process can improve the quality of communication to resolve more quickly project ambiguity and to enable the engineer to discover better value designs for multiple stakeholders. The process is also integrated into a concurrent design environment to facilitate the transfer of knowledge of important drivers into higher fidelity design phases. Formal utility theory provides a mechanism to bridge the language barrier between experts of different backgrounds and differing needs, for example, scientists, engineers, managers, etc. Multi-attribute tradespace exploration with concurrent design couples decision makers more closely to the design and, most important, maintains their presence between formal reviews.