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TsAGI Science Journal

Publication de 6  numéros par an

ISSN Imprimer: 1948-2590

ISSN En ligne: 1948-2604

GROUND TESTING OF THE LAUNCH VEHICLE ACOUSTICS

Volume 45, Numéro 3-4, 2014, pp. 237-254
DOI: 10.1615/TsAGISciJ.2014011945
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RÉSUMÉ

This paper presents a generalization of the results on launch vehicle acoustics obtained at the Central Research Institute of Machine Building (TsNIIMash) over the past 15–20 years. Experimental/computational techniques are developed including acoustic studies on the small-scale facilities of TsNIIMash (with gas generator thrust below 2 tf), and large-scale facilities of Rocket and Space Industry Research and Testing Center (with the thrust up to 50 tf). The present work describes engineering computational methods based on the generalization of in situ measurements and acquisition tests that allow optimizing testing devices and reducing the number of ground tests when examining launch vehicle acoustics and recalculating the modeled data to adjust for the full-scale conditions. Optimization of the ground acoustics testing compared to earlier works is implemented by applying a large-scale liquid propellant engine model and by reducing the number of tests on the large-scale rigs due to the small-scale tests on kerosene/ air rigs. A small-scale pulsed rig that reconstructs the full-scale temperature of the propellant using the products of combustion of the oxygen/hydrogen/methane/nitrogen mixtures is applied to recalculate the modeled data for full-scale conditions.

CITÉ PAR
  1. Lubert Caroline P., Gee Kent L., Tsutsumi Seiji, Supersonic jet noise from launch vehicles: 50 years since NASA SP-8072, The Journal of the Acoustical Society of America, 151, 2, 2022. Crossref

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