Peculiarities of acoustic loading of the space vehicle in the nose fairing launched as part of a «Soyuz»-type rocket

Abstract


The paper describes a method for finding resonant acoustic modes taking into account the influence of the spacecraft geometry and that of the nose fairing of the "Soyuz" rocket. An example of determining the resonant acoustic modes under the nose fairing is given. A method of determining the effects of spacecraft component density under the payload fairing on the acoustic loading is described. The analysis of acoustical characteristics of the nose fairing compartment is carried out taking into account the influence of cutouts of sound insulation elements. Recommendations on the reduction of acoustic loads on the upper surface of the spacecraft are given.


About the authors

P. A. Popov

Samara State Space University named after academician S. P. Korolyov (National Research University)

Author for correspondence.
Email: banduir@rambler.ru

Russian Federation

Post-graduate Student of the Department of Automatic Systems of Power Installations

A. A. Sindyukov

Samara State Space University named after academician S. P. Korolyov (National Research University)

Email: sindyukovart@mail.ru

Russian Federation

Post-graduate Student of the Department of Automatic Systems of Power Installations

A. N. Kryuchkov

Samara State Space University named after academician S. P. Korolyov (National Research University)

Email: kan@ssau.ru

Russian Federation

Doctor of Technical Science, Professor

Professor of the Department of Automatic Systems of Power Installations

References

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  2. Расчётное определение звукоизоляции и спектров акустического давления под ГО при старте и полёте РН «Союз-2» [Текст]/ НТО, инв. №4/11-03, РУСАВИА, 2003. – 51 c.
  3. Попов, П.А. Оценка изменения звукоизоляционной способности головного обтекателя ракеты носителя при наличии разных по толщине слоёв звукопоглощающих материалов [Текст]/ П.А. Попов // Вестник Самарского государственного аэрокосмического университета имени академика С. П. Королёва. – 2012. – Вып. №4. – С.103-110.
  4. Боголепов, И.И. Промышленная звукоизоляция [Текст]/ И.И. Боголепов – Л.: Судостроение, 1986. – 368 с.
  5. Экспериментальное определение звукоизоляции межбакового отсека блока III ступени РН «Союз» [Текст]/ НТО, инв.№5535, ЦАГИ, 1999. – 38 c
  6. Расчётно-экспериментальное определение акустических нагрузок для металического ГО [Текст]/ НТО, инв.№5548, ЦАГИ, 1999. – 71 c.

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