| Autor: |
Jeong-Heum Yeon, Yeong-Sun Jang, Seong-Gi Yun, Yeong-Mu Lee |
| Rok vydání: |
2003 |
| Předmět: |
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| Zdroj: |
Journal of the Korean Society for Aeronautical & Space Sciences. 31:91-98 |
| ISSN: |
1225-1348 |
| DOI: |
10.5139/jksas.2003.31.8.091 |
| Popis: |
In the structural analysis of a launch vehicle, the construction of loading functions and the determination of responses to them are very important. Among many kinds of loads, acoustic load generated by exhaust is a random load that can be described in a statistical manner. In this study, loading functions corresponding to the acoustic loads are constructed and applied to the structural analysis of launch vehicle. Acoustic loading functions are constructed using source allocation method. Structural analyses are carried out by using finite element modelling and frequency response function of finite element model. The stresses resulting from acoustic loads and acceleration power spectral density functions at interfaces of each section are calculated. These analyses are essential for the development of environmental test specifications and associated dynamic design requirements which are necessary to ensure overall vehicle reliability. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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