Multidisciplinary Design Optimization of the Shape and Trajectory of a Reentry Vehicle
Multidisciplinary Design Optimization of the Shape and Trajectory of a Reentry Vehicle
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再入飞行器形状和轨迹的多学科设计优化
DOI：
10.2322/tjsass.45.10
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发表时间：
2002
影响因子：
1.1
通讯作者：
Shinji Suzuki
中科院分区：
文献类型：
--
作者：
M. Tava;Shinji Suzuki
本文给出了再入飞行器外形和弹道的优化方案设计结果。一般的问题被分解成学科的子系统，执行单独的分析，空气动力学，重量估计，和飞行动力学。采用了一种新型的表面网格生成程序，该程序可以最大限度地减少牛顿理论计算气动系数所需的面元数，从而大大减少了气动分析所需的计算时间。跨学科耦合所需的分析子系统之间的信息交换由多学科设计优化技术协调。为飞行器考虑的形状是球形钝头双锥。优化的目标是横向范围和总热负荷，受加热速率峰值，车辆重量和纵向稳定性的约束。
In this paper, the results for the optimal conceptual design of a reentry vehicle’s shape and trajectory are presented. The general problem is decomposed into disciplinary subsystems that perform separated analyses for aerodynamics, weight estimation, and flight dynamics. A novel surface grid generation program that minimizes the number of panels required to calculate the aerodynamic coefficients by the Newtonian theory is used to largely reduce the computing time required by the aerodynamic analysis. The exchange of information between the analysis subsystems required by the interdisciplinary couplings is coordinated by a multidisciplinary design optimization technique. The shape considered for the vehicle is a spherically blunted biconic. The objectives of the optimization are the cross-range and the total heat load, subject to constraints on heating rate peak, vehicle weight, and longitudinal stability.