An Application on Methodology for Total Design Management, the 1st Report (Result of Design and Firing Test of Rocket Engine, and Effectiveness of TDM)

We suggested a new design methodology for a multipurpose trade-off design and a risk management, called Total Design Management (TDM) in previous papers. TDM has two important concepts: “Set Based Design (SBD)“ and “Model Based Risk management (MBR)“. In SBD, designers firstly calculate the total set of design solutions and then narrow down the solutions complying with the design requirements or constraint conditions by a filtering method. SBD is very simple, transparent and practical process. In MBR, designers manage a design risk based on designers' non-confidence of the mathematical models which they make or calculate. In this paper, we report knowledge and lessons obtained from our rocket engine development that the TDM method was firstly applied. The rocket engine have completed the combustion tests satisfying required performances without any major problems in spite of the brand-new development in very short development period.