One of the possible ways to face the challenge of reducing the environmental impact of aviation, without limiting the growth of air transport, is the introduction of more efficient, radically different aircraft architectures. Among these, the box-wing one represents a promising solution, at least in the case of its application to short-to-medium haul aircraft, which, according to the achievement of the H2020 project “PARSIFAL”, would bring to a 20% reduction in terms of emitted CO2 per passenger-kilometre. The present paper faces the problem of estimating the structural mass of such a disruptive configuration in the early stages of the design, underlining the limitations in this capability of the approaches available by literature and proposing a DoE-based approach to define surrogate models suitable for such purpose. A test case from the project “PARSIFAL” is used for the first conception of the approach, starting from the Finite Element Model parametrization, then followed by the construction of a database of FEM results, hence introducing the regression models and implementing them in an optimization framework. Results achieved are investigated in order to validate both the wing sizing and the optimization procedure. Finally, an additional test case resulting from the application of the box-wing layout to the regional aircraft category within the Italian research project “PROSIB”, is briefly presented to further assess the capabilities of the proposed approach.

在不限制航空运输增长的情况下，应对减少航空对环境影响的挑战的可能方法之一是引入更高效、完全不同的飞机架构。其中，箱翼飞机代表了一种很有前途的解决方案，至少在其应用于中短程飞机的情况下，根据 H2020 项目“PARSIFAL”的成果，这将带来 20%每客公里二氧化碳排放量的减少。本文面临在设计的早期阶段估计这种破坏性配置的结构质量的问题，强调了文献中可用方法的这种能力的局限性，并提出了一种基于 DoE 的方法来定义适用于此类的替代模型。目的。来自项目“PARSIFAL”的测试用例用于该方法的第一个概念，从有限元模型参数化开始，然后构建有限元结果数据库，从而引入回归模型并在优化中实施它们框架。对获得的结果进行了调查，以验证机翼尺寸和优化程序。最后，简要介绍了意大利研究项目“PROSIB”中将箱翼布局应用于支线飞机类别而产生的附加测试案例，以进一步评估所提出方法的能力。因此引入回归模型并在优化框架中实现它们。对获得的结果进行了调查，以验证机翼尺寸和优化程序。最后，简要介绍了意大利研究项目“PROSIB”中将箱翼布局应用于支线飞机类别而产生的附加测试案例，以进一步评估所提出方法的能力。因此引入回归模型并在优化框架中实现它们。对获得的结果进行了调查，以验证机翼尺寸和优化程序。最后，简要介绍了意大利研究项目“PROSIB”中将箱翼布局应用于支线飞机类别而产生的附加测试案例，以进一步评估所提出方法的能力。