Modal Analysis for the Development of Composite Structure of STSAT-3

Autor: Noh-Hoon Myung, Jung-Ki Seo, Hee-Keun Cho
Rok vydání: 2008
Předmět:
Zdroj: Journal of the Korean Society for Aeronautical & Space Sciences. 36:1201-1206
ISSN: 1225-1348
DOI: 10.5139/jksas.2008.36.12.1201
Popis: This study is focused on the investigation of the modal characteristics of the preliminary models of science technology satellite-3 (STSAT-3). Prior to the final decision of the composite structure model, several candidate structure models have been developed so as to find the most qualified structures with respect to the satellite structure systems` requirements and then utilize the information achieved to a real design. The main structure is composed of fiber reinforced composite faced honeycomb sandwich panel whose modal characteristics are found and compared to each other by means of finite element numerical analyses. Results from the current study demonstrate that a rectangular box shape having supporting inner panel shows relatively higher fundamental mode frequencies than octagonal box shape and etc., and regardless of the structure model shape tested herein, the fundamental mode turns out lateral bending mode.
Databáze: OpenAIRE