Research On The Design Methods Of Attitude And Orbit Control Liquid Rocket Engine For Integrated Design Platform

Taking the research of attitude and orbit control liquid rocket engine for integrated design platform as background, the design methodology for attitude and orbit control liquid rocket engine has been studied in this paper. And then taking bipropellant thrust chamber for example, its design methods and design process were investigated and summarized.For integrated design platform, demand analysis has been done for the design of liquid rocket engine, the calculation and design of attitude and orbit control liquid rocket engine was divided into eight modules, such as the overall design, thermodynamic calculation, bipropellant thrust chamber design, monopropellant thrust chamber design, propellant tank design, valves and regulators design, gas vessel design and igniter design. To further explore a new quantitative design method, the QFD technique has been applied to analyse the user’s demand for bipropellant thrust chamber, and the product quality was controlled throughout the whole process.Based on experience, reference values of bipropellant thrust chamber’s performance parameters have been given. Depending on the design content and design characteristics of the engine, a standard process for bipropellant thrust chambe’s design was proposed, and a verification example has been presented. The CBR method has been implemented for bipropellant thrust chamber to achieve the effective inheritance, reuse and innovation from the past knowledge and experience.Finally, as required by the integrated design platform, according to the research of bipropellant thrust chamber, the degine for bipropellant thrust chamber was divided into four small modules such as the overall design, combustion chamber and nozzle design, injector design and calculation of cooling measures, and these modules were coded and integrated into the platform. Combined with the thermodynamic calculation module, bipropellant thrust chamber module which is referred in the demand analysis was realized as expected.