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Study of Resource Constraints and Environmental Performance Objectives in Pareto-Optimal Aircraft Technology Portfolios

机译:研究帕累托最优飞机技术组合中的资源约束和环境绩效目标

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In previous work, the technology portfolio problem was formulated and used in conjunction with environmental goals for the 2020-2025 timeframe to identify a Pareto frontier of solutions using multi-objective genetic algorithms. Continuation of this work includes decoupling environmental goals from regulatory standards by introducing absolute valued analogues to isolate metric performance and identify the Pareto frontier in the absolute valued objective space. The Pareto-optimal technology combinations are characterized in terms of its corners, underlying performance tradeoffs, and salient features. Favorable regions within the Pareto frontier are also examined by quantifying the gap to prescribed environmental goals while identifying pervasive technologies. In addition, a technology maturation resource constraint based on Technology Readiness Level (TRL) is formulated and used to study the tradeoff between resource burden and solution performance. Also, Pareto frontier evolution is studied as the resource constraint is made more stringent, and a critical value of is identified corresponding to the onset of a rapid performance degradation and regression of the Pareto frontier.
机译:在先前的工作中,制定了技术投资组合问题,并将其与2020-2025年时间表的环境目标结合使用,以使用多目标遗传算法确定解决方案的帕累托边界。这项工作的继续包括通过引入绝对值类似物来隔离度量标准性能并确定绝对值目标空间中的帕累托边界,从而使环境目标与法规标准脱钩。帕累托最优技术组合的特征在于其优势,潜在的性能折衷和显着特征。在确定普适技术的同时,还通过量化与规定的环境目标之间的差距来检查帕累托边界内的有利区域。此外,制定了基于技术准备水平(TRL)的技术成熟资源约束条件,并将其用于研究资源负担与解决方案性能之间的权衡。此外,随着资源约束变得更加严格,研究了帕累托边界演化,并确定了临界值,以对应于帕累托边界快速性能下降和回归的开始。

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