Aircraft electromechanical system thermal-energy performance modeling method based on Sysml meta-model

Abstract

The invention discloses an airplane electromechanical system thermal-energy performance modeling method based on a Sysml meta-model, which comprises the following steps: S1, constructing a system meta-model based on a Sysml language, describing composition and connection relations of a system through an internal block diagram, describing main indexes through a parameter diagram, and describing activities through an activity diagram; s2, constructing an energy-heat performance model of all parts in the system; s3, constructing a system thermal performance simulation framework by using the internal block diagram and the parameter diagram, wherein the system thermal performance simulation framework comprises system component performance models, a variable corresponding relation between the component performance models and an algebraic equation set composed of performance parameters of the component models; s4, constructing a control relation of elements such as a component performance model and a connection relation of performance model variables in the system energy heat simulation framework by using the activity diagram; and S5, forming a system thermal performance model described by an algebraic equation from the system component meta-model described by semantics. According to the method, the behavior information in the Sysml model can be automatically converted into the performance model instruction, and the performance modeling efficiency of the electromechanical system is improved.

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