224 - Modal test of the 2nd stage of Korea space launch vehicle
Seo S., Jeong H., Youn S., Park S., Jang Y.
Abstract
KSLV-I (Korea Space Launch Vehicle-I), which is being developed by KARI (Korea Aerospace Research Institute) will be launched in 2007. The structure of KSLV-I can be divided into engine section and payload section. This paper introduces modal test of the payload section of KSLV-I which is composed to satellite, PLA (payload adapter), VEB (vehicle equipment bay), KMS (kick motor support) and KM (kick motor). From this test, dynamic properties of the 2nd stage structure of KSLV-I can be obtained. In this test, to simulate free-free boundary condition, test object was hung by 4 bungee cords and excited by using impact hammer. Modal test results show global mode of 2nd stage structure including electronic equipment and local mode of VEB. In order to check the degree of correlation between mode shapes, MAC (modal assurance criteria) matrix was used.
Citation
Seo S.; Jeong H.; Youn S.; Park S.; Jang Y.: Modal test of the 2nd stage of Korea space launch vehicle, CD-ROM Proceedings of the Thirtheenth International Congress on Sound and Vibration (ICSV13), July 2-6, 2006, Vienna, Austria, Eds.: Eberhardsteiner, J.; Mang, H.A.; Waubke, H., Publisher: Vienna University of Technology, Austria, ISBN: 3-9501554-5-7
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