Study of characteristics of the launch vehicle fuel line gas damper


Ensuring the longitudinal stability and quality of regulation of a liquid-propellant launch vehicle is very important in its development and operation. It is known that the use of gas dampers installed in the feed line is one of the effective ways to provide longitudinal stability of a launch vehicle. Correct choice of damper characteristics makes it possible to eliminate the possibility of coinciding of the natural frequencies of oscillations of pressure of the liquid in the feed line and in the launch vehicle body and thus to ensure the longitudinal stability. Methods of mathematical and numerical simulation are applied for the analysis of gas damper characteristics using the software package MatLab/Simulink and AMESim. The paper presents a mathematical model of the gas damper, its transient and frequency responses are analyzed. The acoustic conductance of the gas damper is calculated as its generalized dynamic characteristics. Variations of volume are plotted as a function of liquid pressure at the damper inlet in case of harmonic oscillations. The developed model of the gas damper can be used in analyzing the frequency response of the fuel feed line in the framework of solving the problem of ensuring the longitudinal stability of a launch vehicle.

About the authors

A. G. Gimadiev

Samara State Aerospace University

Author for correspondence.

Russian Federation

Doctor of Science (Engineering)

Professor of the Department of Power Plant Automatic Systems

D. A. Odinokov

Joint-Stock Company Space Rocket Center «Progress», Samara


Russian Federation

Design engineer

D. M. Stadnik

Samara State Aerospace University


Russian Federation

Junior research associate

P. I. Greshnyakov

Samara State Aerospace University


Russian Federation

Postgraduate student


  1. Kolesnikov K.S., Rybak S.А., Samoilov Е.А. Dinamika toplivnykh system ZhRD [Dynamics of fuel systems of liquid-propellant launch vehicles / ed. by K.S. Kolesnikov]. Мoscow: Mashinostroenie Publ., 1975. 171 p.
  2. NASA Experience with Pogo in Human Spaceflight Vehicles. NATO RTO Symposium ATV-152 on Limit-Cycle Oscilla-tions and Other Amplitude-Limited, Self-Excited Vibrations. Norway, 2008. 23 p.
  3. Natanzon M.S. Prodol'nye avtokolebaniya zhidkostnoy rakety [Longitudinal oscillations of a liquid-propellant rocket]. Moscow: Mashinostroenie Publ., 1977. 205 p.
  4. Jun Kyoung Lee Study on Dynamics Modeling of Pogo Suppression Device (PSD). Journal of the Korean Society of Propulsion Engineers. 2007. V. 11, Iss. 5. P. 23-30. (In Korean).
  5. Dobrowolski М.V. Zhidkostnye raketnye dvigateli: osnovy proektirovaniya: ucheb. dlya vuzov / pod red. D.A. Yagodnikova [Liquid rocket engines: basis оf design: textbook for institutes of higher education / edited by D.A. Yagodnikova. Revised and enlarged edition]. Мoscow: Bauman State Technical University Publ., 2006. 487 p.
  6. Popov D.N. Mekhanika gidro- i pnevmoprivodov: ucheb. dlya vuzov [Mechanics of hydraulic and pneumatic drives: textbook for institutes of higher education]. Moscow: Bauman State Technical University Publ., 2002. 319 p.
  7. Woode. Calculation method of liquid flow fluctuations in LRE pipelines. AIAA Journal. 1961. No. 11. P. 96-104.
  8. Zielke W. Frequency-dependent friction in transient pipe flow. ASME Journal of Basic Engineering. 1968. V. 90, no. 1. Р. 109-115.
  9. Sanada K., Richards C.W., Longmore D.K., Johnston D.N. A finite Element Model of Hydraulic Pipelines Using an Optimized Interlacing Grid System. Proceedings of the Institution of Mechanical Engineers, Part I: Journal of Systems and Control Engineering. 1993. V. 207, Iss. 4. P. 213-221.
  10. Lallement J. Study of the dynamic behavior of the hydraulic lines, Lesmémoires techniques du CETIM. 1976. 65 p. (In French).



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