Launch Environment Test Results of Koreasat-3

무궁화위성 3호 발사환경시험 결과분석

  • 양군호 (한국항공우주연구소 통신위성연구그룹) ;
  • 최성봉 (한국항공우주연구소 통신위성연구그룹) ;
  • 김원철 (한국통신 위성운용단) ;
  • 김성중 (한국통신 위성운용단) ;
  • 황보한 (한국통신 위성운용단)
  • Published : 2000.06.22

Abstract

Koreasat-3 was successfully launched by an Ariane IV launch vehicle on September 5, 1999. Although the primary purpose of the satellite is to replace Koreasat-l, it also can extend its communication service coverage over the Asia-Pacific region. A spacecraft is subjected to severe dynamic loads during launch period. To verify the safety of spacecraft under the launch environment, dynamic tests should be performed such as sine sweep, acoustic and separation shock tests. This paper presents the launch environment test results of Koreasat-3. A total of 188 acceleration responses was measured and compared with the design requirements of components and spacecraft. Dynamic characteristic change was also investigated by comparing between low-level pre/post vibration results. From the review of test results, it is concluded that Koreasat-3 was designed and manufactured with the margin of safety enough to survive the launch loads of Ariane IV.

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