Accession Number:

AD0485313

Title:

A STUDY OF SYSTEM COUPLED INSTABILITY ANALYSIS TECHNIQUES. PART II.

Descriptive Note:

Final rept. May 65-Jun 66,

Corporate Author:

MARTIN CO DENVER CO

Personal Author(s):

• Bikle, F. E.
• Fidler, L. E.
• Rohrs, J. B.

Report Date:

1966-07-01

Pagination or Media Count:

322.0

Abstract:

This report is concerned with the study of instabilities, generally referred to as POGO, resulting from coupling between liquid fueled propulsion system and structural dynamics. This report deals with both the liquid system POGO experienced on the Thor and Titan vehicles as well as the gas POGO associated with the pressurization system of the Atlas vehicle. Results of tests and analysis indicate that systems response trends resulting from parameter characteristics affected by both steady state and varying operating conditions can be studied on relatively inexpensive subscale test configurations. Neither tests nor analysis were, however, carried far enough to establish any scaling parameters that could be applied between subscale and full scale systems. Author

Descriptors:

• *FLUID FLOW
• *LIQUID PROPELLANT ROCKET ENGINES
• OSCILLATION
• STABILITY
• CAVITATION
• HYDRAULIC EQUIPMENT
• PNEUMATIC EQUIPMENT
• TRANSIENTS
• THERMODYNAMICS
• ENTHALPY
• PUMPS
• IMPELLERS
• EQUATIONS OF MOTION
• MODEL THEORY
• PRESSURIZATION
• RESPONSE
• DYNAMICS
• FLUID DYNAMICS
• PROPELLANT TANKS
• PROPELLANT CONTROL
• TURBOPUMPS

Subject Categories:

• Guided Missiles
• Acoustics
• Fluid Mechanics
• Liquid Propellant Rocket Engines
• Ground Support Systems and Facilities for Space Vehicles

Distribution Statement:

APPROVED FOR PUBLIC RELEASE