Accession Number : AD0474582


Title :   A STUDY OF SYSTEM COUPLED INSTABILITY ANALYSIS TECHNIQUES.


Descriptive Note : Quarterly technical rept. no. 2, Aug-Oct 65.


Corporate Author : MARTIN CO DENVER CO


Personal Author(s) : Bikle, Fred E ; Fidler, Larry E ; Rohrs, John B


Report Date : Nov 1965


Pagination or Media Count : 93


Abstract : This report is concerned with the subject of coupled structural/propulsion system instability generally referred to as POGO. The prime objective of the study is to determine the feasibility of using small-scale test configurations to define the parameters critically affecting stability. This report deals with both the liquid system pogo experienced on Thor and Titan vehicles as well as the gas system pogo experienced on Atlas vehicles. This report discusses sub-scale test methods and configurations, as well as analysis of physical generation of cavitation compliance in turbopumps. Preliminary test results indicate that inexpensive commercial turbopumps can be used effectively to study cavitation phenomenon in rocket-engine propulsion systems. (Author)


Descriptors :   *LIQUID PROPELLANT ROCKET ENGINES , STABILITY , PRESSURIZATION , CONFIGURATIONS , MODEL TESTS , TEST METHODS , TURBOPUMPS , CAVITATION , FLOWMETERS , CALIBRATION , MATHEMATICAL MODELS , FUEL SYSTEMS


Subject Categories : Liquid Propellant Rocket Engines


Distribution Statement : APPROVED FOR PUBLIC RELEASE