Studying the Impact of Dissipative Properties of Structural Members on Internal-Ballistics Characteristics of a Solid-Propellant Rocket Engine
Authors: Kashina I.A., Sal'nikov A.F. | Published: 07.04.2014 |
Published in issue: #2(95)/2014 | |
Category: Inspection and Diagnostics | |
Keywords: solid-propellant rocket engine, longitudinal acoustic instability, combustion chamber, dynamic magnification factor, energy dissipation |
A change in energy dissipation of structural members of a solid-propellant rocket engine under condition of the resonant or near-resonant interaction with the gas wave processes is analyzed. This interaction results in the enhancement of the gas oscillation amplitude due to the energy redistribution in structural members. The process is accompanied by the internal volume change of the combustion chamber of the solid-propellant rocket engine; the amplitude of pressure oscillations inside the combustion chamber also increases. To analyze the change in energy dissipation of structural members of the solid-propellant rocket engine is necessary for engine failure prevention during its operation.
References
[1] Sal’nikov A.F., Sal’nikov D.A., Petrova E.H. The study of the excitation conditions of the longitudinal oscillations in the combustion chamber of a solid rocket engine. Khimicheskaya fizika i mezoskopiya [Chemical physics and mesoscopy], 2006, vol. 8, no. 2, pp. 169-17 (in Russ.).
[2] Sal’nikov A.F., Petrova E.H. The condition of the longitudinal acoustic instability in the combustion chamber of the solid rocket engine. Sb. trudov mezhdunar. konf. "Vnutrikamernyeprotsessy, gorenie i gazovaya dinamika dispersnykh system" [Proc. Int. Conf. "Intrachamber processes, combustion and gas dynamics of disperse systems"], St. Petersburg, 2006, vol. 1, pp. 120-123 (in Russ.).
[3] Sal’nikov A.F., Petrova E.N., Balueva M.A. Influence of the combustion chamber structural elements of a solid rocket engine on the amplitude value of the pressure oscillations. Vestnik PGTU "Aerokosmicheskaya tekhnika" [Herald of the Perm State Tech. Univ. "Airspace engineering"], 2006, no. 2, pp. 16-20 (in Russ.).