Conceptual Shape Optimization of Entry Vehicles

This book covers the parameterization of entry capsules, including Apollo capsules and planetary probes, and winged entry vehicles such as the Space Shuttle and lifting bodies. The aerodynamic modelling is based on a variety of panel methods that take shadowing into account, and it has been validated with flight and wind tunnel data of Apollo and the Space Shuttle. The shape optimization is combined with constrained trajectory analysis, and the multi-objective approach provides the engineer with a Pareto front of optimal shapes.

The method detailed inConceptual Shape Optimization of Entry Vehiclesis straightforward, and the output gives the engineer insight in the effect of shape variations on trajectory performance. All applied models and algorithms used are explained in detail, allowing for reconstructing the design tool to the researchers requirements.

Conceptual Shape Optimization of Entry Vehicles will be of interest to both researchers and graduate students in the field of aerospace engineering, and to practitioners within the aerospace industry.

Dominic Dirkx works as a research associate in the field of analysis and simulation of planetary mission tracking. He has extensive experience on the design and implementation of simulation software for aerospace mission dynamics and design. His research interests include re-entry dynamics, trajectory optimization, interplanetary tracking, relativistic geodesy and modular simulation software design. He has worked on the shape optimization of entry vehicles, the conceptual design of planetary missions and the analysis of interplanetary laser ranging as a novel method of orbit determination for planetary missions.

Erwin Mooij works as an assistant professor in the field of launch and re-entry systems, amongst others teaching such course to first-year MSc students. His research interests include re-entry systems, trajectory optimization, guidance and control system design, and design methods and data-analysis techniques. Over the years he has worked on several re-entry-system projects, aimed at finding the best shape for doing hypersonic flight experiments. Before coming to work for Delft University of Technology, he worked for Dutch Space (currently: Airbus Defence and Space Netherlands). His tasks included, amongst others, system engineering for the thermal-protection system of the EXPERT entry vehicle (ESA project), as well as the shape-optimization of an earlier configuration of EXPERT.

Introduction.- Mission Heritage.- Flight Mechanics.- Aerothermodynamics.- Numerical Interpolation.- Vehicle Geometry.- Optimization.- Simulator Development.- Results - Capsule.- Results - Winged Vehicle.- Concluding Remarks.