Research on The Parametric Solid Modeling Method of Solid Rocket Motor for Multiphysics Simulation

Solid Rocket Motor (SRM) design engineers urge for a method that can design SRM with high efficiency and realize the adjustment of the parameters within limits, aiming at roughly evaluating the quality characteristics of the SRM and rapidly getting the multi-physics fields used for working process simulation under the circumstances of the burning regression. Based on the Creo platform, this paper proposed a standard process for parametric design of SRM and tracking the burning regression by utilizing the concept of Top-down modeling and the method of feature modeling respectively. Additionally, the function of modifying parameters, regenerating models, and exporting files was encapsulated in programs by the secondary development of Creo, avoiding the complexity and tediousness of manual operation.