• CN: 11-2187/TH
  • ISSN: 0577-6686

Journal of Mechanical Engineering ›› 2026, Vol. 62 ›› Issue (7): 38-51.doi: 10.3901/JME.260363

Previous Articles    

Research on the Evolution of Spacecraft Digital Model and Digital Main Line Construction Method Based on MBSE

HAN Dong, LIU Xia, WEI Ping   

  1. Overall Design Department of China Academy of Space Technology, Beijing 100094
  • Received:2025-05-21 Revised:2025-12-11 Published:2026-05-25

Abstract: This study summarizes the MBSE-based digital engineering development practices of manned lunar exploration spacecraft, covering the requirements model developed with SysML, the system design model, and the system verification model developed with Modelica, across three product levels: overall spacecraft, subsystems, and individual components. It distills these practices into a comprehensive digital model system for the entire lifecycle, all levels, and across all product dimensions of spacecraft development. Focusing on system requirements analysis, system design, and verification, the study takes the digital model of manned lunar exploration spacecraft as an example to analyze the fundamental composition of master data in the digital backbone, as well as the transfer processes of master data in the digital backbone across temporal, organizational, and product dimensions. It also examines the mapping correspondence between technical state items of spacecraft products and their representations in digital models, research and test documents, physical products, and the digital backbone. By organically integrating the technical state management elements of products in both the digital and physical domains, the study proposes an integrated MBSE-based digital development process for spacecraft products, providing a technical foundation for effectively controlling the technical state in digital development modes.

Key words: digital, MBSE, digital main line

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