Analytical modeling and modular simulation of feedline system elements with fluid/structure interaction
Abstract
The design and verification of sophisticated health monitoring and control algorithms for advanced space propulsion systems requires the development of high fidelity mathematical models of their dynamic behavior and efficient digital simulations of this behavior. In this paper, we report progress on an effort to develop integrated mathematical models of feedline system elements that form a part of liquid propulsion systems. In particular, we examine the modeling of the axial, torsional, and transverse dynamics of feedline elements containing liquid propellant flow, where the modeling specifically accounts for the flow/structure interactions that occur in such elements. We also discuss the implementation of these relationships by digital simulation code modules based upon solving the equations by the method of characteristics. Results are presented to demonstrate the code modules. We also discuss an ongoing effort to construct an object-oriented simulation framework to study the feasibility and performance of object-oriented approaches to the implementation of a dynamic simulation.
- Publication:
-
Annual Health Monitoring Conference for Space Propulsion Systems
- Pub Date:
- 1991
- Bibcode:
- 1991spps.conf...65M
- Keywords:
-
- Feed Systems;
- Liquid Propellant Rocket Engines;
- Mathematical Models;
- Propellant Transfer;
- Systems Simulation;
- Control Systems Design;
- Rocket Engine Control;
- Spacecraft Propulsion and Power