CLASSICAL METHODS BASED DAMAGE-MITIGATING CONTROL LAW ANALYSIS AND SYNTHESIS FOR LIQUID PROPELLANT ROCKET ENGINES

摘要

The goal of damage-mitigating and life-extending control (DMLEC) for the liquid propellant rocket engines (LRE) is to achieve a desired trade-off level between the structural durability of critical components and the performance of LRE system. This paper presents a viewpoint that the analysis and synthesis procedure of DMLEC law for the LRE is based on the multi-objective optimal theory and method. It focuses on the classical methods and procedures of DMLEC law analysis and synthesis, such as the main goal method and the linear weighted sum method. With these methods, it accounts the turbine blade as a critical component to carry out the simulation computation for a certain LRE. What is more, it gives advantages and disadvantages of these methods by discussing the results.