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首页> 外文期刊>Journal of Fluids and Structures >Structural dynamic reanalysis method for transonic aeroelastic analysis with global structural modifications
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Structural dynamic reanalysis method for transonic aeroelastic analysis with global structural modifications

机译：具有全局结构修改的肿大空气弹性分析结构动态再分析方法

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Transonic aeroelastic analysis is an important aspect of modern aircraft design. When the modeshapes changed for the structural stiffness or/and mass matrix variation, the structural model and aerodynamic model could be reconstructed to maintain accuracy. However, these reconstruction procedures have to be repeated every time when there is a change in the aircraft structure design, where each of these reconstructions takes a considerable time. In this paper, an automated procedure for transonic aeroelastic analysis method was proposed when the structural model parameters changed at global level. To manage thousands of calculations and makes more efficient and reliable calculations, the structural dynamic reanalysis method was employed to set up an automated procedure to link the aeroelastic solvers and structural design parameters without changing structural modal coordinates. The proposed automated procedure was illustrated and verified by the AGARD 445.6 wing aeroelastic model with different global level structural parameter variations. The results show that the automated procedure can accurately produce pulse responses corresponding to the mode excitations and the flutter characteristics of AGARD 445.6 wing in a very large modification range. The whole automated procedure is efficient and reliable in managing transonic aeroelastic analysis when structural parameters changed at global level. (C) 2017 Elsevier Ltd. All rights reserved.
机译：跨型空气弹性分析是现代飞机设计的一个重要方面。当为结构刚度或/和质量矩阵变化而改变的模型，可以重建结构模型和空气动力学模型以保持精度。然而，当飞机结构设计发生变化时，必须每次重复这些重建程序，其中每个重建中的每一个需要相当长的时间。本文提出了一种在全球水平改变的结构模型参数时提出了一种用于跨型空气弹性分析方法的自动化程序。为了管理数千个计算并制造更有效且可靠的计算，采用结构动态再分析方法来建立自动化程序，以将空气弹性溶剂和结构设计参数连接而不改变结构模态坐标。所提出的自动化程序被agard 445.6翼翼航空弹性模型进行了说明和验证，具有不同的全球水平结构参数变化。结果表明，在非常大的修改范围内，自动化程序可以精确地产生对应于模式激励和agard 445.6机翼的颤动特性的脉冲响应。当结构参数在全球层面发生变化时，整个自动化程序在管理肿块空气弹性分析方面是高效可靠的。 （c）2017 Elsevier Ltd.保留所有权利。

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