基于可执行架构的航天器系统设计与动态 验证方法

To address challenges in the early design and verification of satellite systems, a method integrating model-based systems engineering (MBSE) with SpaceSim co-simulation techniques is proposed. This approach is validated through the development of an executable satellite information-flow balance analysis architecture model as a case study. Through the unification of system-architecture design and simulation, the workflow utilizes the simulation architecture both for model definition and orchestration of each simulation request. The SpaceSim co-simulation metamodel, defined in SysML, enables flexible architecture definition and cross-project reuse. Case studies demonstrate that simulation architectures can be rapidly built or modified by engineers simply through metamodel instantiation as an executable model and invocation of modules from a shared library—dramatically reducing the learning curve for SpaceSim. Moreover, as simulation outputs are directly linked to system-design requirements, a fully integrated early design-analysis-verification environment is established, and traceability is enhanced. Overall, broad potential is offered by the method for spacecraft design and verification through the acceleration of design iterations, improvement of test quality, and shortening of system-engineering cycles.