Multi-Objective Hypersonic Entry Aeroshell Shape Optimization

Autor:	John E. Theisinger, Robert D. Braun
Rok vydání:	2009
Předmět:	Hypersonic speed Engineering business.industry Longitudinal static stability Evolutionary algorithm Aerospace Engineering Aerodynamics iSight Multi-objective optimization Space and Planetary Science Control theory Aeroshell Shape optimization Aerospace engineering business
Zdroj:	Journal of Spacecraft and Rockets. 46:957-966
ISSN:	1533-6794 0022-4650
DOI:	10.2514/1.41136
Popis:	A capability has been developed that utilizes multi objective optimization to identify hypersonic entry aeroshell shapes that will increas e landed mass capability. Aeroshell shapes are parameterized using non-uniform rational B-splines to generate complete aeroshell surfaces. Hypersonic aerodynamic objectives and constraints are computed by numerically integrating pressure coefficient distributions obta ined using Newtonian flow theory. An integrated optimization environment is created usin g iSIGHT with single- and multiobjective evolutionary algorithms. Results are presented based on optimization using constraints derived from the aeroshell for the Mars Science Laboratory mission. Resulting solutions clearly demonstrate the trade-offs betwee n drag-area, static stability, and volumetric efficiency for this particular mission.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::60c54ffc926b6c9416262c2f31829ff4 https://doi.org/10.2514/1.41136 Zobrazit plný text záznamu