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Issue No:5, Vol.3 |
May - 2010 |
ISSN: 0974-5645 |
| RESEARCH ARTICLES |
Viewers & PDF |
| 20. Design and analysis of vibration test bed fixtures for space launch vehicles.T. Srinivas Reddy and K. Vijaya Kumar Reddy (2010) Indian J.Sci.Technol. Vol. 3, Issue 5, pp: 592-595. Domain site: http://www.indjst.org. |
 
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- Abstract
Space Launch Vehicles are subjected to rigor dynamic environment during lift-off and ascent phase of launch. The
intense sound generated by the rocket propulsion system exerts significant acoustic pressure which induces vibrations.
In addition, intense vibrations are generated by space propulsion engine ignitions, shut downs, sudden transient
shocks generated by solid rocket motors and separation of stages. The vibration testing poses a challenge to design
and realize good vibration test fixture. Launch vehicles have to undergo vibration testing prior to launch for its design
qualification and flight acceptance. Vibration testing requires a fixture to interface the specimen and vibration
generating equipment. This paper briefly describes the design criticalities, analysis and material considerations and
structural dynamic modifications to ensure good vibration environment simulation to launch vehicle structures.
- Keywords: Space launch vehicle, vibration testing, test fixture, acoustic pressure, resonance.
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