Complete Configuration Aero-Structural Optimization Using a Coupled Sensitivity Analysis Method

Complete Configuration Aero-Structural Optimization Using a Coupled Sensitivity Analysis Method
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使用耦合灵敏度分析方法进行完整的气动结构优化

DOI：
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发表时间：
2002
期刊：
影响因子：
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通讯作者：
J. Reuther
J. Reuther
中科院分区：
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文献类型：
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作者：
J. Martins;J. Alonso;J. Reuther

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摘要：本文重点论证了一种新的航空航天飞行器气动结构一体化设计方法。该方法结合了气动结构分析求解器、耦合气动结构伴随求解器、基于几何的分析与设计集成策略以及高效的梯度优化算法。空气结构求解器通过使用高保真模型和高保真耦合程序来确保高精度的解决方案。求解了空气动力学欧拉方程，建立了主结构的有限元模型。采用气动-结构耦合伴随解计算了气动和结构代价函数在气动外形和性能两方面的灵敏度
Abstract : This paper focuses on the demonstration of a new integrated aero-structural design method for aerospace vehicles. The approach combines an aero-structural analysis solver, a coupled aero-structural adjoint solver, a geometry-based analysis and design integration strategy, and an efficient gradient-based optimization algorithm. The aero-structural solver ensures highly accurate solutions by using high-fidelity models for both disciplines as well as a high-fidelity coupling procedure. The Euler equations are solved for the aerodynamics and a detailed finite element model is used for the primary structure. The coupled aero-structural adjoint solution is used to calculate the needed sensitivities of aerodynamic and structural cost functions with respect to both aerodynamic shape and