Modeling and scheme tradeoff analysis of EMU traction system based on SysML
The innovation design is a key research field of Chinese EMU in recent years,and it is also a key way to improve the competitive power of Chinese EMU products.With the help of System Modeling Language(SysML),this paper proposes an overall solution for the modeling strategy,requirement verification and scheme tradeoff of the traction system of EMU.It mainly includes three aspects:Firstly,traction system modeling,covering domain metamodel,requirements modeling and composition modeling;Secondly,based on the basic model of the traction system,the parameter model and logic model of the requirement verification are defined,and the modeling and simulation process of the requirement verification model is carried out.Thirdly,traction system scheme analysis based on SysML model,traction system analysis model is built on the basic model,parameter mapping is constructed using SysML parameter diagram,demand verification of different situations and trade-off analysis of various design schemes are carried out through parameter analysis based on the model.Finally,the traction system of EMU and its traction motor are used for verifying the effectiveness of the proposed method.
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