Trajectory driven multidisciplinary design optimization of a sub-orbital spaceplane using non-stationary Gaussian process

摘要: This paper presents the multidisciplinary optimization of an aircraft carried sub-orbital spaceplane. The process focused on three disciplines: aerodynamics, structure and trajectory. spaceplane geometry was coupled with its structural weight estimated using empirical formulas. trajectory optimized a pseudo-spectral approach automated mesh refinement that allowed for increasing sparsity Jacobian constraints. aerodynamics computed Euler code results were used to create surrogate model based non-stationary Gaussian procedure specially developed this study.