Email this article Constructive actions for decrease in acoustic loading in the assembly and protective block 81ks
- Authors: Popov P.1, Igolkin A.1
-
Affiliations:
- Samara University
- Issue: Vol 4, No 1 (2018)
- Pages: 16-20
- Section: Articles
- URL: https://dynvibro.ru/dynvibro/article/view/6491
- DOI: https://doi.org/10.18287/2409-4579-2018-4-1-16-20
- ID: 6491
Cite item
Full Text
Abstract
On the basis of the experimental works which are carried out in TsAGI laboratories necessary parameters of coefficients of mechanical losses, absorption coefficients, coefficients of distribution and sound insulation for composite samples with drawing on their surfaces of different sound-absorbing materials which have allowed to reduce loading on adaptable spacecraft to the total mean square level of the acoustic pressure which is not exceeding 140,6 dB are received. In work the rated scheme of research of decrease in acoustic loadings is given and comparison of theoretical and experimental data is given. Results of rated pilot studies have been confirmed with design tests of launch vehicle "Soyz-2".
About the authors
Pavel Popov
Samara University
Author for correspondence.
Email: banduir@rambler.ru
Russian Federation
Alexander Igolkin
Samara University
Email: igolkin97@gmail.com
Russian Federation
References
- Grosveld, F.W. (1985), “Noise transmission through an acoustically treated and honeycomb-stiffened aircraft sidewall”, J. Airocraft, vol. 22, no. 5, pp. 434-440.
- Grosveld F.W. (1980), “Field-incidence noise transmission loss of general aviation aircraft double-wall configu-ration”, AIAA J, vol. 18, no. 4, pp. 484-500.
- Beyer, T.B. (1985), “Effects of acoustic treatment on the interior noise of a twin-engine propeller airplane”, J. Aircraft, vol. 22, no. 9, pp. 784-788.
- Holmer, S.I. (1985), “Approach to interior noise control”, J.Aircraft, vol. 22, no. 7, pp. 619-623.
- Barton, C.K. (1981), “Noise transmission and control data for a light twin-engine aircraft”, J. Airocraft, vol. 18, no. 7, pp. 570-575.
- Mixon, J.S. (1978), “Investigation of interior noise in a twin-engine light aircraft”, J. Aircraft, vol. 15, no. 4, pp. 791-797.
- Grosveld, F.W. (1980), “Noise transmission through sidewall treatments applicable to twin-engine turboprop aircraft”, AIAA J., vol. 18, no. 4, pp. 434-440.
- Kuznetcov, V.M. (2004), “Eksperimentalnoe opredelenie v akusticheskoj kamere zvukoizoljatcionnih kharakteristik panelej GO” , TsAGI, 28 p.
- Popov, P.A., Igolkin, A.A. and Kruchkov, A.N. (2017), “Primenenie energeticheskogo podhoda pri reshenii zadach snigenia shuma vnutri sborochno-zashitnogo bloka dlja kosmicheskih apparatov razlichnoj konfiguratcii” , II Vserossiyskaya akusticheskaya konferentsiya, sovmeshchennaya s XXX sessiey Rossiyskogo akusticheskogo soobshchestva , Nizhniy Novgorod, Russia, 6-9 June 2017, pp. 1364-1369.
Supplementary files
