关键词: 固体推进剂火箭发动机;计算机辅助设计;计算机辅助制造;数值模拟

Abstract: The flow profiles by CAD (computer aided design) and CAM (computer aided manufacture) of SPRM are proposed in the paper. Authors consider that the performance prediction combined with grain design and thermo-protection calculation are the main content in theory and structure design of SPRM, and drawing by computer is the final expression of design idea. The core of performance prediction is the numerical simulation of operating process which regards the function each other between combustion and flow, and the core of thermo-protection design is ablation, heat-transfer and stress calculation. CAD and CAM system should absorb at any time new research achievements. The achievements of high-level core research possess the function of holding the balance for raising prediction accuracy and theory design level of SPRM performance prediction.

Key words: Solid propellant rocket engine;Computer aided design;Computer aided manufacturing;Numerical Simulation