Improvement of nonlinear lateral characteristics of lifting-body type reentry vehicle using optimization algorithm

Shinkyu Jeong, Kunihiro Suzuki, Shigeru Obayashi, Mitsuru Kurita

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

The nonlinear lateral characteristics of a lifting-body type reentry vehicle were improved. First, the reasons for the nonlinear lateral characteristics were investigated by CFD analysis. The results indicated that fins mounted on the Japan Aerospace Exploration Agency's (JAXA) baseline lifting-body configuration cause unsymmetrical development of vortices and result in nonlinear lateral characteristics. An efficient optimization algorithm, called EGOMOP (Efficient Global Optimization for Multi-Objective Problems), was adopted to improve these nonlinear lateral characteristics. EGOMOP predicts potential optimum solutions based on the probability estimated by the Kriging model. The computational time for optimization was markedly reduced due to use of the Kriging model. Further investigations were also performed to determine the effects of the upswept upper-aft and swept-back fin angles. The results indicated that the swept-back fin angle is an important factor controlling the lateral characteristics of the lifting-body type reentry vehicle.

Original languageEnglish
Title of host publicationCollection of Technical Papers - 2007 AIAA InfoTech at Aerospace Conference
Pages1866-1881
Number of pages16
Publication statusPublished - 2007
Event2007 AIAA InfoTech at Aerospace Conference - Rohnert Park, CA, United States
Duration: 2007 May 72007 May 10

Publication series

NameCollection of Technical Papers - 2007 AIAA InfoTech at Aerospace Conference
Volume2

Other

Other2007 AIAA InfoTech at Aerospace Conference
CountryUnited States
CityRohnert Park, CA
Period07/5/707/5/10

ASJC Scopus subject areas

  • Aerospace Engineering
  • Industrial and Manufacturing Engineering

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