Noise Prediction of Liquid Rocket Engine by the Software AutoSEA2

Abstract:

Because of the high-cost of the spaceflight launching, the reliability of the payload must be ensured in the high level acoustic energy produced by the first stage rocket engine. It’s the base for ensuring the normal work of the instruments during the lift-off. In this paper, the exhaust noise and the specific sound field produced by the liquid rocket engine on the ground-test system were measured, and the statistical energy analysis model was built to predict the noise environment of the rocket engine. In order to obtain the noise spectrum loaded on the fairing and the instrument cabin during the lift-off, two measurements were made and some measuring locations were set for each test. During the testing, the sound pressure level around the engine spout and the corresponding heights of the payload cabin were measured. By comparing the data derived from different measuring locations for the same measurement and the different measurements for the same location, the characteristics of the noise field was obtained. Results showed that the measured data agreed well with the predicted data used AutoSEA2 software.

• Periodical: Advanced Materials Research (Volumes 466-467)
• Pages: 794-798
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.466-467.794
• Online since: February 2012
• Authors: Xiao Long Duan, Xiao Yong Liu
• Keywords: Ground-Test System, Liquid Rocket Engine, Noise Measuring, Statistical Energy Analysis

References

[1] Kandula, Max; Margasahayam, Ravi. Acoustical and Flowfield Characterization of a Scaled Tabletop Rocket. NASA-20010090338.

[2] Hilton, D. A.; Bruton, D. Near noise field characteristics of Nike rocket motors for application to space vehicle payload acoustic qualification. NASA-19770020236.

[3] Y. Mishing, in: Diffusion Processes in Advanced Technological Materials, edtied by D. Gupta Noyes Publications/William Andrew Publising, Norwich, NY (2004), in press.

[3] Campos, Emilio; Madrid, Inst. Nacional de Tecnica Aeroespacial, Spain. Prediction of Noise from Rocket Engines. AIAA: 2005-2837.

[4] Kandula, Max; Vu, Bruce T; Lindsay, Halie K; Sierra Lobo, Inc., Kennedy Space Center, FL Near-Field Acoustical Characterization of Clustered Rocket Engines. AIAA : 2005-3091.

DOI: 10.2514/6.2005-3091

[5] Payload Vibroacoustic test criteria[R]. NASA-STD-7001.

[6] Recent advances in Vibroacoustics[R]. NASA-GRC (2004).

[7] Bharj T, Cimerman B. Application of Statistical Energy Analysis to a passenger Vehicle: Combining Analytical and Test-Based Prediction in a Hybrid Model. Proceeding of Inter Noise, 1996, Liverpool: pp.1303-1306.

[8] Parrett A V, Hicks B, John K. Statistical Energy Analysis of Airborne and Structure-Borne Automobile. Proceedings of Inter Noise (1997).