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首页> 外文期刊>The Aeronautical Journal >Data re-use for preliminary thermal-mechanical design of gas turbine engines
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Data re-use for preliminary thermal-mechanical design of gas turbine engines

机译：数据重复使用，用于燃气涡轮发动机的初步热机械设计

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摘要

Thermal-mechanical design is a time-consuming process even at its preliminary design stage. This is due to the large number of components and boundary condition data, the complexity of the geometry, and the iterative nature of the design process. The conventional design process separates the geometric and physical models and results in considerable human interventions during the design process. By assigning the breakpoints to engine assembly features as internal parameters, this article reports a novel feature-based design approach where the associated boundary conditions are represented parametrically along the feature geometric contours. They are updated automatically as per the geometrical changes, including topological changes, and hence bridging the gap between the geometric and physical models. The current approach enables data re-use of both the geometries and physical information from previous engine designs to generate new designs, dispensing with the excessive human interventions. Although the methodology is generic and applicable to other design scenarios, its capability is demonstrated in this article by some representative challenging industrial applications, sitting in the 2D preliminary gas-turbine design domain. The test cases show that the method can significantly reduce the time-cost of the iterative thermal-mechanical design flow.
机译：即使在初步设计阶段，热机械设计也是一项耗时的过程。这是由于大量的零件和边界条件数据，几何的复杂性以及设计过程的迭代性质。常规设计过程将几何模型和物理模型分开，并在设计过程中导致相当多的人为干预。通过将断点分配给引擎装配特征作为内部参数，本文报道了一种新颖的基于特征的设计方法，其中沿特征几何轮廓线以参数形式表示了相关的边界条件。它们会根据几何变化（包括拓扑变化）自动更新，从而缩小了几何模型与物理模型之间的差距。当前的方法使来自先前发动机设计的几何形状和物理信息的数据得以重用，以生成新的设计，从而消除了过多的人工干预。尽管该方法是通用的，并且适用于其他设计方案，但本文的功能已通过2D初步燃气轮机设计领域中的一些具有代表性的具有挑战性的工业应用得到了证明。测试案例表明，该方法可以显着减少迭代热机械设计流程的时间成本。

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