关键词: 复杂物理系统, 多领域统一建模, Modelica语言, 飞机起落架

Abstract: Aiming at the coupling relationships among multiple domains and the unified modeling was needed, key technologies involving in unified multi-domain modeling system based on Modelica language were studied such as text modeling, visualized modeling, the text related modification, model analysis, and corresponding platform was also developed. The text editor supporting the keyword highlight technology was developed to implement the text modeling. To improve the loading speed of model library, the serialization loading strategy was proposed. The text related modification algorithm was presented to guarantee the consistence between visualized model and Modelica text description model. By morphology analysis, grammar analysis and semantics analysis, the validity of the model constructed by text modeling or visualized modeling was checked. Finally, the modeling example was presented.

Key words: complex physical system, multi-domain unified modeling, Modelica language, landing gear, product design