Accession Number : AD0756076

Title :   Longitudinal Vibrations of Rockets with Liquid Fuel Engines,

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Kolesnikov,K. S.

Report Date : 04 JAN 1972

Pagination or Media Count : 327

Abstract : In the report vibrations in the powered-flight phase of a liquid fuel rocket are examined as a closed mechanical-hydraulic system consisting of the elastic body of the rocket with liquid fuel in tanks, fuel lines, and liquid rocket engine. The dynamic characteristics of each of these elements of the system are examined. Methods of calculating the form and frequencies of inherent longitudinal vibrations of the body of the rocket are presented, taking into account the axi symmetrical vibrations of the elastic fuel tanks. The dynamic characteristics of the fuel lines are determined with a consideration of the local resistances and elastic properties of the turbo-drives and bellows, taking into account the compressibility and cavitation of the liquid fuel entering the centrifugal pumps. The low-frequency dynamic characteristics of the liquid propellant rocket engine are determined with closed and open feeding system. (Author)

Descriptors :   (*LIQUID PROPELLANT ROCKET ENGINES, VIBRATION), COMBUSTION, STABILITY, OSCILLATION, RESONANT FREQUENCY, SLOSHING, DAMPING, USSR

Subject Categories : Liquid Propellant Rocket Engines

Distribution Statement : APPROVED FOR PUBLIC RELEASE